diff --git a/pkgs/applications/audio/friture/default.nix b/pkgs/applications/audio/friture/default.nix
index eae4b6516858..1a6ab05853b5 100644
--- a/pkgs/applications/audio/friture/default.nix
+++ b/pkgs/applications/audio/friture/default.nix
@@ -41,5 +41,6 @@ in py.buildPythonApplication rec {
     license = licenses.gpl3;
     platforms = platforms.linux; # fails on Darwin
     maintainers = [ maintainers.laikq ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/audio/mopidy/mopify.nix b/pkgs/applications/audio/mopidy/mopify.nix
index b657f69e26ee..916a3780b64b 100644
--- a/pkgs/applications/audio/mopidy/mopify.nix
+++ b/pkgs/applications/audio/mopidy/mopify.nix
@@ -19,5 +19,6 @@ pythonPackages.buildPythonApplication rec {
     description = "A mopidy webclient based on the Spotify webbased interface";
     license = licenses.gpl3;
     maintainers = [ maintainers.Gonzih ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/audio/mopidy/musicbox-webclient.nix b/pkgs/applications/audio/mopidy/musicbox-webclient.nix
index b0abefd7a1fd..da29e4775ef1 100644
--- a/pkgs/applications/audio/mopidy/musicbox-webclient.nix
+++ b/pkgs/applications/audio/mopidy/musicbox-webclient.nix
@@ -19,5 +19,6 @@ pythonPackages.buildPythonApplication rec {
     description = "Mopidy extension for playing music from SoundCloud";
     license = licenses.mit;
     maintainers = [ maintainers.spwhitt ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/audio/mopidy/soundcloud.nix b/pkgs/applications/audio/mopidy/soundcloud.nix
index 8002feb0f901..efc32fb785e3 100644
--- a/pkgs/applications/audio/mopidy/soundcloud.nix
+++ b/pkgs/applications/audio/mopidy/soundcloud.nix
@@ -19,5 +19,6 @@ pythonPackages.buildPythonApplication rec {
     description = "Mopidy extension for playing music from SoundCloud";
     license = licenses.mit;
     maintainers = [ maintainers.spwhitt ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/audio/mopidy/youtube.nix b/pkgs/applications/audio/mopidy/youtube.nix
index b8e22a41cabf..1e4e8ab10399 100644
--- a/pkgs/applications/audio/mopidy/youtube.nix
+++ b/pkgs/applications/audio/mopidy/youtube.nix
@@ -19,5 +19,6 @@ pythonPackages.buildPythonApplication rec {
     description = "Mopidy extension for playing music from YouTube";
     license = licenses.asl20;
     maintainers = [ maintainers.spwhitt ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/audio/muse/default.nix b/pkgs/applications/audio/muse/default.nix
index f1fad05beced..7bff8bf2f6e8 100644
--- a/pkgs/applications/audio/muse/default.nix
+++ b/pkgs/applications/audio/muse/default.nix
@@ -33,6 +33,7 @@ stdenv.mkDerivation {
       it is published under the GNU General Public License.
     '';
     license = stdenv.lib.licenses.gpl2;
+    broken = true;
   };
 
   src =
diff --git a/pkgs/applications/blockchains/ethabi.nix b/pkgs/applications/blockchains/ethabi.nix
index 5bc81a6daf66..9fb465a52016 100644
--- a/pkgs/applications/blockchains/ethabi.nix
+++ b/pkgs/applications/blockchains/ethabi.nix
@@ -23,5 +23,6 @@ buildRustPackage rec {
     maintainers = [ maintainers.dbrock ];
     license = licenses.gpl3;
     inherit version;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/editors/nvi/default.nix b/pkgs/applications/editors/nvi/default.nix
index a7a6b35a24a0..4ee816a41da4 100644
--- a/pkgs/applications/editors/nvi/default.nix
+++ b/pkgs/applications/editors/nvi/default.nix
@@ -51,5 +51,6 @@ stdenv.mkDerivation {
     homepage = http://www.bostic.com/vi/;
     description = "The Berkeley Vi Editor";
     license = stdenv.lib.licenses.free;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/graphics/k3d/default.nix b/pkgs/applications/graphics/k3d/default.nix
index 31085cd8023d..1cc82feda2ee 100644
--- a/pkgs/applications/graphics/k3d/default.nix
+++ b/pkgs/applications/graphics/k3d/default.nix
@@ -47,5 +47,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.linux;
     maintainers = [ maintainers.raskin ];
     license = licenses.gpl2;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/kde/kdepim-addons.nix b/pkgs/applications/kde/kdepim-addons.nix
index e47aae89e603..7f36e6a2d623 100644
--- a/pkgs/applications/kde/kdepim-addons.nix
+++ b/pkgs/applications/kde/kdepim-addons.nix
@@ -13,6 +13,7 @@ mkDerivation {
   meta = {
     license = with lib.licenses; [ gpl2Plus lgpl21Plus ];
     maintainers = kdepimTeam;
+    broken = true;
   };
   nativeBuildInputs = [ extra-cmake-modules shared-mime-info ];
   buildInputs = [
diff --git a/pkgs/applications/kde/kitinerary.nix b/pkgs/applications/kde/kitinerary.nix
index ce66de251dca..3e29b22059e1 100644
--- a/pkgs/applications/kde/kitinerary.nix
+++ b/pkgs/applications/kde/kitinerary.nix
@@ -9,6 +9,7 @@ mkDerivation {
   meta = {
     license = with lib.licenses; [ lgpl21 ];
     maintainers = [ lib.maintainers.bkchr ];
+    broken = true;
   };
   nativeBuildInputs = [ extra-cmake-modules ];
   buildInputs = [
diff --git a/pkgs/applications/misc/ape/default.nix b/pkgs/applications/misc/ape/default.nix
index 0d8ebccb3d02..72d3989f5bea 100644
--- a/pkgs/applications/misc/ape/default.nix
+++ b/pkgs/applications/misc/ape/default.nix
@@ -41,5 +41,6 @@ stdenv.mkDerivation rec {
     license = license;
     platforms = platforms.unix;
     maintainers = with maintainers; [ yrashk ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/misc/hovercraft/default.nix b/pkgs/applications/misc/hovercraft/default.nix
index ba23078bba93..c60020ea0efb 100644
--- a/pkgs/applications/misc/hovercraft/default.nix
+++ b/pkgs/applications/misc/hovercraft/default.nix
@@ -31,5 +31,6 @@ buildPythonApplication rec {
     homepage = https://github.com/regebro/hovercraft;
     license = licenses.mit;
     maintainers = with maintainers; [ goibhniu makefu ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/misc/navit/default.nix b/pkgs/applications/misc/navit/default.nix
index 2263dfc1fbc0..27da7c84513d 100644
--- a/pkgs/applications/misc/navit/default.nix
+++ b/pkgs/applications/misc/navit/default.nix
@@ -86,5 +86,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2;
     maintainers = [ maintainers.genesis ];
     platforms = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/cluster/kubeval/default.nix b/pkgs/applications/networking/cluster/kubeval/default.nix
index 84e9b8899431..6de1a33b4100 100644
--- a/pkgs/applications/networking/cluster/kubeval/default.nix
+++ b/pkgs/applications/networking/cluster/kubeval/default.nix
@@ -44,5 +44,6 @@ buildGoModule rec {
     license = licenses.asl20;
     maintainers = with maintainers; [ nicknovitski ];
     platforms = platforms.all;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/cluster/marathon/default.nix b/pkgs/applications/networking/cluster/marathon/default.nix
index 72bd82be6c16..eca2b8a540e0 100644
--- a/pkgs/applications/networking/cluster/marathon/default.nix
+++ b/pkgs/applications/networking/cluster/marathon/default.nix
@@ -26,5 +26,6 @@ stdenv.mkDerivation rec {
     license = licenses.asl20;
     maintainers = with maintainers; [ kamilchm kevincox pradeepchhetri ];
     platforms = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/cluster/mesos/default.nix b/pkgs/applications/networking/cluster/mesos/default.nix
index 1ad30335b94d..dadbfacdd8bf 100644
--- a/pkgs/applications/networking/cluster/mesos/default.nix
+++ b/pkgs/applications/networking/cluster/mesos/default.nix
@@ -258,5 +258,6 @@ in stdenv.mkDerivation rec {
     description = "A cluster manager that provides efficient resource isolation and sharing across distributed applications, or frameworks";
     maintainers = with maintainers; [ cstrahan kevincox offline ];
     platforms   = platforms.unix;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/instant-messengers/amsn/default.nix b/pkgs/applications/networking/instant-messengers/amsn/default.nix
index 6ff51445718b..7acea3cd3c67 100644
--- a/pkgs/applications/networking/instant-messengers/amsn/default.nix
+++ b/pkgs/applications/networking/instant-messengers/amsn/default.nix
@@ -24,5 +24,6 @@ stdenv.mkDerivation {
     homepage = http://amsn-project.net;
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl2;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/irc/communi/default.nix b/pkgs/applications/networking/irc/communi/default.nix
index 8278f90d321c..b7c11b3feb07 100644
--- a/pkgs/applications/networking/irc/communi/default.nix
+++ b/pkgs/applications/networking/irc/communi/default.nix
@@ -44,5 +44,6 @@ stdenv.mkDerivation rec {
     license = licenses.bsd3;
     maintainers = with maintainers; [ hrdinka ];
     platforms = platforms.all;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix b/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix
index d9eae3c9c503..6233163129cd 100644
--- a/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix
+++ b/pkgs/applications/networking/mailreaders/notmuch-bower/default.nix
@@ -32,5 +32,6 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ erictapen ];
     license = licenses.gpl3;
     platforms = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/modem-manager-gui/default.nix b/pkgs/applications/networking/modem-manager-gui/default.nix
index bfd177cda7a1..ae4f71b89844 100644
--- a/pkgs/applications/networking/modem-manager-gui/default.nix
+++ b/pkgs/applications/networking/modem-manager-gui/default.nix
@@ -59,5 +59,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3;
     maintainers = with maintainers; [ ahuzik ];
     platforms = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/networking/mumble/overlay.nix b/pkgs/applications/networking/mumble/overlay.nix
index babb3812bb92..e651723788e8 100644
--- a/pkgs/applications/networking/mumble/overlay.nix
+++ b/pkgs/applications/networking/mumble/overlay.nix
@@ -24,5 +24,6 @@ in stdenv.mkDerivation {
 
   meta = {
     platforms = stdenv.lib.platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/science/logic/avy/default.nix b/pkgs/applications/science/logic/avy/default.nix
index b43e0c6fbf1a..a738502d8773 100644
--- a/pkgs/applications/science/logic/avy/default.nix
+++ b/pkgs/applications/science/logic/avy/default.nix
@@ -49,5 +49,6 @@ stdenv.mkDerivation {
     # See pkgs/applications/science/logic/glucose/default.nix
     # (The error is different due to glucose-fenv.patch, but the same)
     badPlatforms = [ "aarch64-linux" ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/science/logic/leo2/default.nix b/pkgs/applications/science/logic/leo2/default.nix
index b50848a18205..77d99b4df386 100644
--- a/pkgs/applications/science/logic/leo2/default.nix
+++ b/pkgs/applications/science/logic/leo2/default.nix
@@ -33,5 +33,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.linux;
     license = licenses.bsd3;
     homepage = http://www.leoprover.org/;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/science/misc/colmap/default.nix b/pkgs/applications/science/misc/colmap/default.nix
index da118f6bca57..87484f93a5b9 100644
--- a/pkgs/applications/science/misc/colmap/default.nix
+++ b/pkgs/applications/science/misc/colmap/default.nix
@@ -40,5 +40,6 @@ mkDerivation rec {
     license = licenses.bsd2;
     platforms = platforms.linux;
     maintainers = with maintainers; [ lebastr ];
+    broken = true;
   };
 }
diff --git a/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix b/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix
index 3118eaab19b4..c7ac0a6d3773 100644
--- a/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git-annex-metadata-gui/default.nix
@@ -23,5 +23,6 @@ buildPythonApplication rec {
     maintainers = with maintainers; [ dotlambda ];
     license = licenses.gpl3Plus;
     platforms = with platforms; linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/video/openshot-qt/default.nix b/pkgs/applications/video/openshot-qt/default.nix
index 1c5359e5f0c6..dbf4e68a7066 100644
--- a/pkgs/applications/video/openshot-qt/default.nix
+++ b/pkgs/applications/video/openshot-qt/default.nix
@@ -57,5 +57,6 @@ mkDerivationWith python3Packages.buildPythonApplication rec {
     license = with licenses; gpl3Plus;
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = with platforms; linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/video/openshot-qt/libopenshot-audio.nix b/pkgs/applications/video/openshot-qt/libopenshot-audio.nix
index 9bf211164553..e8e27fa3eb10 100644
--- a/pkgs/applications/video/openshot-qt/libopenshot-audio.nix
+++ b/pkgs/applications/video/openshot-qt/libopenshot-audio.nix
@@ -31,5 +31,6 @@ stdenv.mkDerivation rec {
     license = with licenses; gpl3Plus;
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = with platforms; linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/video/openshot-qt/libopenshot.nix b/pkgs/applications/video/openshot-qt/libopenshot.nix
index 2ed4b8ce3e3d..47e10e87b87b 100644
--- a/pkgs/applications/video/openshot-qt/libopenshot.nix
+++ b/pkgs/applications/video/openshot-qt/libopenshot.nix
@@ -47,5 +47,6 @@ stdenv.mkDerivation rec {
     license = with licenses; gpl3Plus;
     maintainers = with maintainers; [ AndersonTorres ];
     platforms = with platforms; linux;
+    broken = true;
   };
 }
diff --git a/pkgs/applications/window-managers/jwm/default.nix b/pkgs/applications/window-managers/jwm/default.nix
index 3668b344be50..c825ffa5ac17 100644
--- a/pkgs/applications/window-managers/jwm/default.nix
+++ b/pkgs/applications/window-managers/jwm/default.nix
@@ -6,7 +6,7 @@
 stdenv.mkDerivation rec {
   pname = "jwm";
   version = "1685";
-  
+
   src = fetchFromGitHub {
     owner = "joewing";
     repo = "jwm";
@@ -30,5 +30,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.gpl2;
     platforms   = stdenv.lib.platforms.unix;
     maintainers = [ stdenv.lib.maintainers.romildo ];
+    broken = true;
   };
 }
diff --git a/pkgs/development/compilers/avian/default.nix b/pkgs/development/compilers/avian/default.nix
index 34d1e64c484f..1c626de76795 100644
--- a/pkgs/development/compilers/avian/default.nix
+++ b/pkgs/development/compilers/avian/default.nix
@@ -39,5 +39,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.isc;
     platforms = stdenv.lib.platforms.all;
     maintainers = [ stdenv.lib.maintainers.earldouglas ];
+    broken = true;
   };
 }
diff --git a/pkgs/development/compilers/mercury/default.nix b/pkgs/development/compilers/mercury/default.nix
index 0327e0dc2155..f4fbb4d82b0d 100644
--- a/pkgs/development/compilers/mercury/default.nix
+++ b/pkgs/development/compilers/mercury/default.nix
@@ -58,5 +58,6 @@ stdenv.mkDerivation rec {
     license     = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux ++ stdenv.lib.platforms.darwin;
     maintainers = [ ];
+    broken = true;
   };
 }
diff --git a/pkgs/development/interpreters/clojurescript/lumo/default.nix b/pkgs/development/interpreters/clojurescript/lumo/default.nix
index 0e9d81d5e959..a6e9f1760cf6 100644
--- a/pkgs/development/interpreters/clojurescript/lumo/default.nix
+++ b/pkgs/development/interpreters/clojurescript/lumo/default.nix
@@ -122,7 +122,7 @@ let # packageJSON=./package.json;
     classp    = cljdeps.makeClasspaths {
                   extraClasspaths=["src/js" "src/cljs/bundled" "src/cljs/snapshot"];
                 };
-    
+
 
     getJarPath = jarName: (lib.findFirst (p: p.name == jarName) null cljdeps.packages).path.jar;
 
@@ -147,7 +147,7 @@ in stdenv.mkDerivation {
     # configure clojure-cli
     mkdir ./.cpcache
     export CLJ_CONFIG=`pwd`
-    export CLJ_CACHE=`pwd`/.cpcache 
+    export CLJ_CACHE=`pwd`/.cpcache
 
     # require more namespaces for cljs-bundle
     sed -i "s!ns lumo.core! \
@@ -155,7 +155,7 @@ in stdenv.mkDerivation {
                (:require ${requireDeps}) \
                (:require-macros [clojure.template :as temp] \
                                 [cljs.test :as test])!g" \
-              ./src/cljs/snapshot/lumo/core.cljs          
+              ./src/cljs/snapshot/lumo/core.cljs
 
     # Step 1: compile clojurescript with :none and :simple
     ${clojure}/bin/clojure -Scp ${classp} -e "${compileClojurescript true}"
@@ -204,7 +204,7 @@ in stdenv.mkDerivation {
     # Step 3: generate munged cache jsons
     ${clojure}/bin/clojure -Scp ${classp} -e "${cacheToJsons}"
     rm  ./target/cljs/core\$macros\.cljc\.cache\.json
-    
+
 
     # Step 4: Bunde javascript
     NODE_ENV=production node scripts/bundle.js
@@ -251,6 +251,7 @@ in stdenv.mkDerivation {
     license = stdenv.lib.licenses.epl10;
     maintainers = [ stdenv.lib.maintainers.hlolli ];
     platforms = stdenv.lib.platforms.linux;
+    broken = true;
   };
 }
 
diff --git a/pkgs/development/libraries/bwidget/default.nix b/pkgs/development/libraries/bwidget/default.nix
index 0279dc8f5efa..be67a8721779 100644
--- a/pkgs/development/libraries/bwidget/default.nix
+++ b/pkgs/development/libraries/bwidget/default.nix
@@ -27,5 +27,6 @@ stdenv.mkDerivation rec {
     description = "High-level widget set for Tcl/Tk";
     license = stdenv.lib.licenses.tcltk;
     platforms = stdenv.lib.platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/development/libraries/galario/default.nix b/pkgs/development/libraries/galario/default.nix
index 08450e569830..7c092e2c42be 100644
--- a/pkgs/development/libraries/galario/default.nix
+++ b/pkgs/development/libraries/galario/default.nix
@@ -74,5 +74,6 @@ stdenv.mkDerivation rec {
     license = licenses.lgpl3;
     maintainers = [ maintainers.smaret ];
     platforms = platforms.all;
+    broken = pythonPackages.isPy38;
   };
 }
diff --git a/pkgs/development/libraries/gcc/libstdc++/5.nix b/pkgs/development/libraries/gcc/libstdc++/5.nix
index 2589b6cfa16b..d5b8b7c3ffc8 100644
--- a/pkgs/development/libraries/gcc/libstdc++/5.nix
+++ b/pkgs/development/libraries/gcc/libstdc++/5.nix
@@ -113,5 +113,6 @@ stdenv.mkDerivation rec {
     description = "GNU Compiler Collection, version ${version} -- C++ standard library";
     platforms = platforms.linux;
     maintainers = with maintainers; [ abbradar ];
+    broken = true;
   };
 }
diff --git a/pkgs/development/libraries/libgaminggear/default.nix b/pkgs/development/libraries/libgaminggear/default.nix
index d83b43a782e9..c64d41b0ad9e 100644
--- a/pkgs/development/libraries/libgaminggear/default.nix
+++ b/pkgs/development/libraries/libgaminggear/default.nix
@@ -36,5 +36,6 @@ stdenv.mkDerivation rec {
     homepage = https://sourceforge.net/projects/libgaminggear/;
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl2Plus;
+    broken = true;
   };
 }
diff --git a/pkgs/development/libraries/qtutilities/default.nix b/pkgs/development/libraries/qtutilities/default.nix
index 3f0dc18f157b..3b997d265189 100644
--- a/pkgs/development/libraries/qtutilities/default.nix
+++ b/pkgs/development/libraries/qtutilities/default.nix
@@ -20,5 +20,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2;
     maintainers = with maintainers; [ doronbehar ];
     platforms   = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/development/lua-modules/generated-packages.nix b/pkgs/development/lua-modules/generated-packages.nix
index d95ce128b737..07115f9f72c4 100644
--- a/pkgs/development/lua-modules/generated-packages.nix
+++ b/pkgs/development/lua-modules/generated-packages.nix
@@ -990,6 +990,7 @@ luaexpat = buildLuarocksPackage {
     license = {
       fullName = "MIT/X11";
     };
+    broken = true;
   };
 };
 luaffi = buildLuarocksPackage {
diff --git a/pkgs/development/misc/google-clasp/default.nix b/pkgs/development/misc/google-clasp/default.nix
index db6ade1c85a6..a64ecc8f2993 100644
--- a/pkgs/development/misc/google-clasp/default.nix
+++ b/pkgs/development/misc/google-clasp/default.nix
@@ -15,5 +15,6 @@ in
     license = stdenv.lib.licenses.asl20;
     maintainers = [ stdenv.lib.maintainers.michojel ];
     priority = 100;
+    broken = true;
   };
 }
diff --git a/pkgs/development/python-modules/alerta-server/default.nix b/pkgs/development/python-modules/alerta-server/default.nix
index 55674b660c04..9e132b89a1a8 100644
--- a/pkgs/development/python-modules/alerta-server/default.nix
+++ b/pkgs/development/python-modules/alerta-server/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildPythonPackage, fetchPypi, pythonOlder, pyyaml
-, python-dateutil, requests, pymongo, raven, bcrypt, flask, pyjwt, flask-cors, psycopg2, pytz, flask-compress, jinja2
+, python-dateutil, requests, pymongo, raven, bcrypt, flask, pyjwt, flask-cors, psycopg2, pytz, flask-compress, jinja2, isPy38
 }:
 
 buildPythonPackage rec {
@@ -25,5 +25,6 @@ buildPythonPackage rec {
     homepage = https://alerta.io;
     description = "Alerta Monitoring System server";
     license = licenses.asl20;
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/apache-airflow/default.nix b/pkgs/development/python-modules/apache-airflow/default.nix
index 049db8a648fb..7a5a0521be17 100644
--- a/pkgs/development/python-modules/apache-airflow/default.nix
+++ b/pkgs/development/python-modules/apache-airflow/default.nix
@@ -53,6 +53,7 @@
 , nose
 , python
 , isPy3k
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -187,5 +188,6 @@ buildPythonPackage rec {
     homepage = http://airflow.apache.org/;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc maintainers.ingenieroariel ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/aria2p/default.nix b/pkgs/development/python-modules/aria2p/default.nix
index 51b523c010aa..74dfdd681f76 100644
--- a/pkgs/development/python-modules/aria2p/default.nix
+++ b/pkgs/development/python-modules/aria2p/default.nix
@@ -1,6 +1,7 @@
 { stdenv, buildPythonPackage, fetchFromGitHub, pythonOlder
 , aria2, poetry, pytest, pytestcov, pytest_xdist, responses
 , asciimatics, loguru, requests, setuptools, websocket_client
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -15,7 +16,7 @@ buildPythonPackage rec {
     rev = "v${version}";
     sha256 = "1inak3y2win58zbzykfzy6xp00f276sqsz69h2nfsd93mpr74wf6";
   };
-  
+
   nativeBuildInputs = [ poetry ];
 
   preBuild = ''
@@ -39,5 +40,6 @@ buildPythonPackage rec {
     description = "Command-line tool and library to interact with an aria2c daemon process with JSON-RPC";
     license = licenses.isc;
     maintainers = with maintainers; [ koral ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/asttokens/default.nix b/pkgs/development/python-modules/asttokens/default.nix
index 8c8a1b76b1a0..06c3016762b4 100644
--- a/pkgs/development/python-modules/asttokens/default.nix
+++ b/pkgs/development/python-modules/asttokens/default.nix
@@ -1,5 +1,5 @@
 { lib, fetchPypi, buildPythonPackage, fetchpatch, astroid, six, coverage
-, lazy-object-proxy, nose, wrapt
+, lazy-object-proxy, nose, wrapt, isPy38
 }:
 
 buildPythonPackage rec {
@@ -29,5 +29,6 @@ buildPythonPackage rec {
     license = licenses.asl20;
     platforms = platforms.all;
     maintainers = with maintainers; [ leenaars ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/asynctest/default.nix b/pkgs/development/python-modules/asynctest/default.nix
index a9c012ba8314..dc219ad3e39f 100644
--- a/pkgs/development/python-modules/asynctest/default.nix
+++ b/pkgs/development/python-modules/asynctest/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, pythonOlder, python }:
+{ lib, buildPythonPackage, fetchPypi, pythonOlder, python, isPy38 }:
 
 buildPythonPackage rec {
   pname = "asynctest";
@@ -26,5 +26,6 @@ buildPythonPackage rec {
     homepage = https://github.com/Martiusweb/asynctest;
     license = licenses.asl20;
     maintainers = with maintainers; [ dotlambda ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/behave/default.nix b/pkgs/development/python-modules/behave/default.nix
index 6d0364676f9a..aaffd6fa7488 100644
--- a/pkgs/development/python-modules/behave/default.nix
+++ b/pkgs/development/python-modules/behave/default.nix
@@ -2,7 +2,7 @@
 , buildPythonApplication, python, pythonOlder
 , mock, nose, pathpy, pyhamcrest, pytest_4
 , glibcLocales, parse, parse-type, six
-, traceback2
+, traceback2, isPy38
 }:
 
 buildPythonApplication rec {
@@ -48,5 +48,6 @@ buildPythonApplication rec {
     description = "behaviour-driven development, Python style";
     license = licenses.bsd2;
     maintainers = with maintainers; [ alunduil ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/browser-cookie3/default.nix b/pkgs/development/python-modules/browser-cookie3/default.nix
index 13eea3e21fd4..9404581f1029 100644
--- a/pkgs/development/python-modules/browser-cookie3/default.nix
+++ b/pkgs/development/python-modules/browser-cookie3/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchPypi, buildPythonPackage, isPy3k, keyring, pbkdf2, pyaes}:
+{ lib, fetchPypi, buildPythonPackage, isPy3k, keyring, pbkdf2, pyaes, isPy38 }:
 buildPythonPackage rec {
   pname = "browser-cookie3";
   version = "0.9.1";
@@ -20,5 +20,6 @@ buildPythonPackage rec {
     maintainers = with maintainers; [ borisbabic ];
     homepage = https://github.com/borisbabic/browser_cookie3;
     license = licenses.gpl3;
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/canmatrix/default.nix b/pkgs/development/python-modules/canmatrix/default.nix
index 004669d605b5..f3c3004ffe41 100644
--- a/pkgs/development/python-modules/canmatrix/default.nix
+++ b/pkgs/development/python-modules/canmatrix/default.nix
@@ -13,6 +13,7 @@
 , XlsxWriter
 , pyyaml
 , pytest
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -54,6 +55,7 @@ buildPythonPackage rec {
     description = "Support and convert several CAN (Controller Area Network) database formats .arxml .dbc .dbf .kcd .sym fibex xls(x)";
     license = licenses.bsd2;
     maintainers = with maintainers; [ sorki ];
+    broken = isPy38;
   };
 }
 
diff --git a/pkgs/development/python-modules/canopen/default.nix b/pkgs/development/python-modules/canopen/default.nix
index a76e05332f19..f52615951301 100644
--- a/pkgs/development/python-modules/canopen/default.nix
+++ b/pkgs/development/python-modules/canopen/default.nix
@@ -3,7 +3,9 @@
 , fetchFromGitHub
 , nose
 , can
-, canmatrix }:
+, canmatrix
+, isPy38
+}:
 
 buildPythonPackage {
   pname = "canopen";
@@ -40,5 +42,6 @@ buildPythonPackage {
     description = "CANopen stack implementation";
     license = licenses.lgpl3;
     maintainers = with maintainers; [ sorki ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/cirq/default.nix b/pkgs/development/python-modules/cirq/default.nix
index d6109e8aabac..e32d4596a8a8 100644
--- a/pkgs/development/python-modules/cirq/default.nix
+++ b/pkgs/development/python-modules/cirq/default.nix
@@ -20,6 +20,7 @@
 , pydot
 , pyyaml
 , pygraphviz
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -82,5 +83,6 @@ buildPythonPackage rec {
     homepage = "http://github.com/quantumlib/cirq";
     license = licenses.asl20;
     maintainers = with maintainers; [ drewrisinger ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/clifford/default.nix b/pkgs/development/python-modules/clifford/default.nix
index 961f6b5bc1de..4c40c4782365 100644
--- a/pkgs/development/python-modules/clifford/default.nix
+++ b/pkgs/development/python-modules/clifford/default.nix
@@ -8,6 +8,7 @@
 , h5py
 , nose
 , isPy27
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -46,5 +47,6 @@ buildPythonPackage rec {
     homepage = https://clifford.readthedocs.io;
     license = licenses.bsd3;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/csvs-to-sqlite/default.nix b/pkgs/development/python-modules/csvs-to-sqlite/default.nix
index 0e5e902be2e3..86cdc928e4a9 100644
--- a/pkgs/development/python-modules/csvs-to-sqlite/default.nix
+++ b/pkgs/development/python-modules/csvs-to-sqlite/default.nix
@@ -9,6 +9,7 @@
 , py-lru-cache
 , six
 , pytest
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -44,6 +45,7 @@ buildPythonPackage rec {
     homepage = https://github.com/simonw/csvs-to-sqlite;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 
 }
diff --git a/pkgs/development/python-modules/cufflinks/default.nix b/pkgs/development/python-modules/cufflinks/default.nix
index ed25c2c73717..7dea73414067 100644
--- a/pkgs/development/python-modules/cufflinks/default.nix
+++ b/pkgs/development/python-modules/cufflinks/default.nix
@@ -8,6 +8,7 @@
 , pandas
 , six
 , statsmodels
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -55,5 +56,6 @@ buildPythonPackage rec {
     homepage = "https://github.com/santosjorge/cufflinks";
     license = licenses.mit;
     maintainers = with maintainers; [ globin ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/dask-jobqueue/default.nix b/pkgs/development/python-modules/dask-jobqueue/default.nix
index f9af247bc802..080c6c969051 100644
--- a/pkgs/development/python-modules/dask-jobqueue/default.nix
+++ b/pkgs/development/python-modules/dask-jobqueue/default.nix
@@ -5,6 +5,7 @@
 , distributed
 , docrep
 , pytest
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -29,5 +30,6 @@ buildPythonPackage rec {
     description = "Deploy Dask on job schedulers like PBS, SLURM, and SGE";
     license = licenses.bsd3;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/datashader/default.nix b/pkgs/development/python-modules/datashader/default.nix
index 789e488e4615..2a520e514998 100644
--- a/pkgs/development/python-modules/datashader/default.nix
+++ b/pkgs/development/python-modules/datashader/default.nix
@@ -25,6 +25,7 @@
 , fastparquet
 , testpath
 , nbconvert
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -81,5 +82,6 @@ buildPythonPackage rec {
     homepage = https://datashader.org;
     license = licenses.bsd3;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/dependency-injector/default.nix b/pkgs/development/python-modules/dependency-injector/default.nix
index b5a3a869b697..e7a0ad2a4fff 100644
--- a/pkgs/development/python-modules/dependency-injector/default.nix
+++ b/pkgs/development/python-modules/dependency-injector/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy3k, six, unittest2 }:
+{ stdenv, buildPythonPackage, fetchPypi, isPy3k, six, unittest2, isPy38 }:
 
 let
   testPath =
@@ -28,5 +28,6 @@ buildPythonPackage rec {
     homepage = https://github.com/ets-labs/python-dependency-injector;
     license = licenses.bsd3;
     maintainers = with maintainers; [ gerschtli ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/django-versatileimagefield/default.nix b/pkgs/development/python-modules/django-versatileimagefield/default.nix
index 90993db4c5bf..131a3f4c8fff 100644
--- a/pkgs/development/python-modules/django-versatileimagefield/default.nix
+++ b/pkgs/development/python-modules/django-versatileimagefield/default.nix
@@ -4,6 +4,7 @@
 , django
 , python
 , pillow
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -26,6 +27,7 @@ buildPythonPackage rec {
     homepage = "https://github.com/respondcreate/django-versatileimagefield/";
     license = licenses.mit;
     maintainers = with maintainers; [ mmai ];
+    broken = isPy38;
   };
 }
 
diff --git a/pkgs/development/python-modules/fire/default.nix b/pkgs/development/python-modules/fire/default.nix
index 7af8d29fce73..98f95e96687e 100644
--- a/pkgs/development/python-modules/fire/default.nix
+++ b/pkgs/development/python-modules/fire/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildPythonPackage, fetchFromGitHub, fetchpatch, six, hypothesis, mock
-, python-Levenshtein, pytest, termcolor, isPy27, enum34 }:
+, python-Levenshtein, pytest, termcolor, isPy27, enum34, isPy38 }:
 
 buildPythonPackage rec {
   pname = "fire";
@@ -42,5 +42,6 @@ buildPythonPackage rec {
     '';
     license = licenses.asl20;
     maintainers = with maintainers; [ leenaars ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/fluidasserts/default.nix b/pkgs/development/python-modules/fluidasserts/default.nix
index 78405ed8a660..c6e6881de41c 100644
--- a/pkgs/development/python-modules/fluidasserts/default.nix
+++ b/pkgs/development/python-modules/fluidasserts/default.nix
@@ -172,5 +172,6 @@ buildPythonPackage rec {
     maintainers = with maintainers; [
       kamadorueda
     ];
+    broken = true;
   };
 }
diff --git a/pkgs/development/python-modules/fritzconnection/default.nix b/pkgs/development/python-modules/fritzconnection/default.nix
index 32e9e9393ce6..f2a1a482689e 100644
--- a/pkgs/development/python-modules/fritzconnection/default.nix
+++ b/pkgs/development/python-modules/fritzconnection/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, lxml, requests, tkinter }:
+{ stdenv, buildPythonPackage, fetchPypi, lxml, requests, tkinter, isPy38 }:
 
 buildPythonPackage rec {
   pname = "fritzconnection";
@@ -21,5 +21,6 @@ buildPythonPackage rec {
     homepage = https://bitbucket.org/kbr/fritzconnection;
     license = licenses.mit;
     maintainers = with maintainers; [ dotlambda ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/furl/default.nix b/pkgs/development/python-modules/furl/default.nix
index ecb455b51e4a..0f365d6497d7 100644
--- a/pkgs/development/python-modules/furl/default.nix
+++ b/pkgs/development/python-modules/furl/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, buildPythonPackage, fetchPypi, flake8, six, orderedmultidict }:
+{ stdenv, buildPythonPackage, fetchPypi, flake8, six, orderedmultidict, isPy38 }:
 
 buildPythonPackage rec {
   pname = "furl";
@@ -18,5 +18,6 @@ buildPythonPackage rec {
     homepage = https://github.com/gruns/furl;
     license = licenses.publicDomain;
     maintainers = with maintainers; [ vanzef ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/git-annex-adapter/default.nix b/pkgs/development/python-modules/git-annex-adapter/default.nix
index a7bac0fd7626..954ef88ffc9b 100644
--- a/pkgs/development/python-modules/git-annex-adapter/default.nix
+++ b/pkgs/development/python-modules/git-annex-adapter/default.nix
@@ -1,5 +1,5 @@
 { stdenv, buildPythonPackage, isPy3k, fetchFromGitHub, substituteAll
-, python, utillinux, pygit2, gitMinimal, git-annex
+, python, utillinux, pygit2, gitMinimal, git-annex, isPy38
 }:
 
 buildPythonPackage rec {
@@ -39,5 +39,6 @@ buildPythonPackage rec {
     description = "Call git-annex commands from Python";
     license = licenses.gpl3Plus;
     maintainers = with maintainers; [ dotlambda ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google-music-proto/default.nix b/pkgs/development/python-modules/google-music-proto/default.nix
index d3f41880784d..aed493397362 100644
--- a/pkgs/development/python-modules/google-music-proto/default.nix
+++ b/pkgs/development/python-modules/google-music-proto/default.nix
@@ -4,6 +4,7 @@
 , marshmallow
 , pendulum
 , protobuf
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -33,5 +34,6 @@ buildPythonPackage rec {
     description = "Sans-I/O wrapper of Google Music API calls";
     license = licenses.mit;
     maintainers = with maintainers; [ jakewaksbaum ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google-music/default.nix b/pkgs/development/python-modules/google-music/default.nix
index 0a3f145f131d..138518a4f906 100644
--- a/pkgs/development/python-modules/google-music/default.nix
+++ b/pkgs/development/python-modules/google-music/default.nix
@@ -5,6 +5,7 @@
 , protobuf
 , requests_oauthlib
 , tenacity
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -40,5 +41,6 @@ buildPythonPackage rec {
     description = "A Google Music API wrapper";
     license = licenses.mit;
     maintainers = with maintainers; [ jakewaksbaum ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_automl/default.nix b/pkgs/development/python-modules/google_cloud_automl/default.nix
index 3fc0fc8598d5..c8b5531d0bcf 100644
--- a/pkgs/development/python-modules/google_cloud_automl/default.nix
+++ b/pkgs/development/python-modules/google_cloud_automl/default.nix
@@ -5,6 +5,7 @@
 , google_api_core
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -28,5 +29,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_bigquery/default.nix b/pkgs/development/python-modules/google_cloud_bigquery/default.nix
index e361b4436ee8..915c594ac8d9 100644
--- a/pkgs/development/python-modules/google_cloud_bigquery/default.nix
+++ b/pkgs/development/python-modules/google_cloud_bigquery/default.nix
@@ -9,6 +9,7 @@
 , pytest
 , mock
 , ipython
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -32,5 +33,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_container/default.nix b/pkgs/development/python-modules/google_cloud_container/default.nix
index d0994ce5e0bf..72b7bac6d321 100644
--- a/pkgs/development/python-modules/google_cloud_container/default.nix
+++ b/pkgs/development/python-modules/google_cloud_container/default.nix
@@ -4,6 +4,7 @@
 , google_api_core
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -27,5 +28,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_datastore/default.nix b/pkgs/development/python-modules/google_cloud_datastore/default.nix
index 7f47725cde35..3baa3a0588fb 100644
--- a/pkgs/development/python-modules/google_cloud_datastore/default.nix
+++ b/pkgs/development/python-modules/google_cloud_datastore/default.nix
@@ -5,6 +5,7 @@
 , google_cloud_core
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -28,5 +29,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_dns/default.nix b/pkgs/development/python-modules/google_cloud_dns/default.nix
index 3ed34303a727..08eb609e736d 100644
--- a/pkgs/development/python-modules/google_cloud_dns/default.nix
+++ b/pkgs/development/python-modules/google_cloud_dns/default.nix
@@ -5,6 +5,7 @@
 , google_cloud_core
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -28,5 +29,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_error_reporting/default.nix b/pkgs/development/python-modules/google_cloud_error_reporting/default.nix
index ef07bf1a3cec..1527b9b65e91 100644
--- a/pkgs/development/python-modules/google_cloud_error_reporting/default.nix
+++ b/pkgs/development/python-modules/google_cloud_error_reporting/default.nix
@@ -4,6 +4,7 @@
 , google_cloud_logging
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -27,5 +28,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_logging/default.nix b/pkgs/development/python-modules/google_cloud_logging/default.nix
index c4d9a1cb8d55..e8c8e04bf9e0 100644
--- a/pkgs/development/python-modules/google_cloud_logging/default.nix
+++ b/pkgs/development/python-modules/google_cloud_logging/default.nix
@@ -8,6 +8,7 @@
 , webapp2
 , django
 , flask
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -31,5 +32,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_resource_manager/default.nix b/pkgs/development/python-modules/google_cloud_resource_manager/default.nix
index 70dd5475c216..1cf673a26218 100644
--- a/pkgs/development/python-modules/google_cloud_resource_manager/default.nix
+++ b/pkgs/development/python-modules/google_cloud_resource_manager/default.nix
@@ -5,6 +5,7 @@
 , google_api_core
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -28,5 +29,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_runtimeconfig/default.nix b/pkgs/development/python-modules/google_cloud_runtimeconfig/default.nix
index a1628b991400..1b89f053f06b 100644
--- a/pkgs/development/python-modules/google_cloud_runtimeconfig/default.nix
+++ b/pkgs/development/python-modules/google_cloud_runtimeconfig/default.nix
@@ -5,6 +5,7 @@
 , google_cloud_core
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -28,5 +29,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_spanner/default.nix b/pkgs/development/python-modules/google_cloud_spanner/default.nix
index 80e88d53f1fc..60e5f25c35f5 100644
--- a/pkgs/development/python-modules/google_cloud_spanner/default.nix
+++ b/pkgs/development/python-modules/google_cloud_spanner/default.nix
@@ -7,6 +7,7 @@
 , google_cloud_core
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -30,5 +31,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_storage/default.nix b/pkgs/development/python-modules/google_cloud_storage/default.nix
index ff750602465b..4c222673f340 100644
--- a/pkgs/development/python-modules/google_cloud_storage/default.nix
+++ b/pkgs/development/python-modules/google_cloud_storage/default.nix
@@ -7,6 +7,7 @@
 , pytest
 , mock
 , setuptools
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -35,5 +36,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/google_cloud_translate/default.nix b/pkgs/development/python-modules/google_cloud_translate/default.nix
index 99494b6886cb..3bbbd381f84e 100644
--- a/pkgs/development/python-modules/google_cloud_translate/default.nix
+++ b/pkgs/development/python-modules/google_cloud_translate/default.nix
@@ -6,6 +6,7 @@
 , grpcio
 , pytest
 , mock
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -31,5 +32,6 @@ buildPythonPackage rec {
     homepage = https://github.com/GoogleCloudPlatform/google-cloud-python;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/gssapi/default.nix b/pkgs/development/python-modules/gssapi/default.nix
index 00c9b86c5eba..2ce2fe61cc67 100644
--- a/pkgs/development/python-modules/gssapi/default.nix
+++ b/pkgs/development/python-modules/gssapi/default.nix
@@ -14,6 +14,7 @@
 , cython
 , python
 , k5test
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -66,5 +67,6 @@ buildPythonPackage rec {
     homepage = https://pypi.python.org/pypi/gssapi;
     description = "Python GSSAPI Wrapper";
     license = licenses.mit;
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/gumath/default.nix b/pkgs/development/python-modules/gumath/default.nix
index 2937b876dec4..095a1b7b8d09 100644
--- a/pkgs/development/python-modules/gumath/default.nix
+++ b/pkgs/development/python-modules/gumath/default.nix
@@ -6,12 +6,13 @@
 , libxnd
 , libgumath
 , isPy27
+, isPy38
 }:
 
 buildPythonPackage {
   pname = "gumath";
   disabled = isPy27;
-  inherit (libgumath) src version meta;
+  inherit (libgumath) src version;
 
   checkInputs = [ numba ];
   propagatedBuildInputs = [ ndtypes xnd ];
@@ -25,4 +26,8 @@ buildPythonPackage {
       --replace 'add_runtime_library_dirs = ["$ORIGIN"]' \
                 'add_runtime_library_dirs = ["${libndtypes}/lib", "${libxnd}/lib", "${libgumath}/lib"]'
   '';
+
+  meta = libgumath.meta // {
+    broken = isPy38;
+  };
 }
diff --git a/pkgs/development/python-modules/howdoi/default.nix b/pkgs/development/python-modules/howdoi/default.nix
index 293ad51e302d..88ce50425ca7 100644
--- a/pkgs/development/python-modules/howdoi/default.nix
+++ b/pkgs/development/python-modules/howdoi/default.nix
@@ -5,6 +5,7 @@
 , requests-cache
 , pygments
 , pyquery
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -27,5 +28,6 @@ buildPythonPackage rec {
     homepage = https://pypi.python.org/pypi/howdoi;
     license = licenses.mit;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/hug/default.nix b/pkgs/development/python-modules/hug/default.nix
index bb38c7387607..042ad065595c 100644
--- a/pkgs/development/python-modules/hug/default.nix
+++ b/pkgs/development/python-modules/hug/default.nix
@@ -6,6 +6,7 @@
 , marshmallow
 , mock
 , numpy
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -34,6 +35,7 @@ buildPythonPackage rec {
     description = "A Python framework that makes developing APIs as simple as possible, but no simpler";
     homepage = https://github.com/timothycrosley/hug;
     license = licenses.mit;
+    broken = isPy38;
   };
 
 }
diff --git a/pkgs/development/python-modules/ibis-framework/default.nix b/pkgs/development/python-modules/ibis-framework/default.nix
index 56aaf6ec71a5..018a5756b308 100644
--- a/pkgs/development/python-modules/ibis-framework/default.nix
+++ b/pkgs/development/python-modules/ibis-framework/default.nix
@@ -14,6 +14,7 @@
 , tables
 , pyarrow
 , graphviz
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -53,5 +54,6 @@ buildPythonPackage rec {
     homepage = https://github.com/ibis-project/ibis;
     license = licenses.asl20;
     maintainers = [ maintainers.costrouc ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/imbalanced-learn/default.nix b/pkgs/development/python-modules/imbalanced-learn/default.nix
index 568fc825ab6b..03b6348dc923 100644
--- a/pkgs/development/python-modules/imbalanced-learn/default.nix
+++ b/pkgs/development/python-modules/imbalanced-learn/default.nix
@@ -4,6 +4,7 @@
 , pytest
 , scikitlearn
 , tensorflow
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -32,5 +33,6 @@ buildPythonPackage rec {
     description = "Library offering a number of re-sampling techniques commonly used in datasets showing strong between-class imbalance";
     homepage = https://github.com/scikit-learn-contrib/imbalanced-learn;
     license = licenses.mit;
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/imgaug/default.nix b/pkgs/development/python-modules/imgaug/default.nix
index 48ea6004426c..ffa64153427b 100644
--- a/pkgs/development/python-modules/imgaug/default.nix
+++ b/pkgs/development/python-modules/imgaug/default.nix
@@ -9,6 +9,7 @@
 , shapely
 , six
 , stdenv
+, isPy38
 }:
 
 buildPythonPackage rec {
@@ -24,7 +25,7 @@ buildPythonPackage rec {
     substituteInPlace requirements.txt \
       --replace "opencv-python-headless" ""
     substituteInPlace setup.py \
-      --replace "opencv-python-headless" "" 
+      --replace "opencv-python-headless" ""
     substituteInPlace pytest.ini \
       --replace "--xdoctest --xdoctest-global-exec=\"import imgaug as ia\nfrom imgaug import augmenters as iaa\"" ""
   '';
@@ -51,5 +52,6 @@ buildPythonPackage rec {
     license = licenses.mit;
     maintainers = with maintainers; [ cmcdragonkai rakesh4g ];
     platforms = platforms.linux;
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/immutables/default.nix b/pkgs/development/python-modules/immutables/default.nix
index 8ca0fe6df9fb..4cce9351f298 100644
--- a/pkgs/development/python-modules/immutables/default.nix
+++ b/pkgs/development/python-modules/immutables/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, pythonOlder }:
+{ lib, buildPythonPackage, fetchPypi, pythonOlder, isPy38 }:
 
 buildPythonPackage rec {
   pname = "immutables";
@@ -15,5 +15,6 @@ buildPythonPackage rec {
     homepage = https://github.com/MagicStack/immutables;
     license = with lib.licenses; [ asl20 ];
     maintainers = with lib.maintainers; [ catern ];
+    broken = isPy38;
   };
 }
diff --git a/pkgs/development/python-modules/intake/default.nix b/pkgs/development/python-modules/intake/default.nix
index 322b3e4c775e..104321a3255b 100644
--- a/pkgs/development/python-modules/intake/default.nix
+++ b/pkgs/development/python-modules/intake/default.nix
@@ -18,6 +18,7 @@
 , tornado
 , pytest
 , pythonOlder
+, isPy38
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/jug/default.nix b/pkgs/development/python-modules/jug/default.nix
index e962cc0bf864..095c929d68a8 100644
--- a/pkgs/development/python-modules/jug/default.nix
+++ b/pkgs/development/python-modules/jug/default.nix
@@ -1,7 +1,8 @@
 { stdenv, buildPythonPackage, fetchPypi, fetchpatch
 , nose, numpy
 , bottle, pyyaml, redis, six
-, zlib }:
+, zlib, isPy38
+}:
 
 buildPythonPackage rec {
   pname = "Jug";
diff --git a/pkgs/development/python-modules/junit-xml/default.nix b/pkgs/development/python-modules/junit-xml/default.nix
index 0a095b69aa05..41dba5493dc8 100644
--- a/pkgs/development/python-modules/junit-xml/default.nix
+++ b/pkgs/development/python-modules/junit-xml/default.nix
@@ -4,6 +4,7 @@
 , six
 , pytest
 , pytest-sugar
+, isPy38
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/junos-eznc/default.nix b/pkgs/development/python-modules/junos-eznc/default.nix
index 1da34a064915..9ff6fb0c9bb2 100644
--- a/pkgs/development/python-modules/junos-eznc/default.nix
+++ b/pkgs/development/python-modules/junos-eznc/default.nix
@@ -11,6 +11,7 @@
 , jinja2
 , pyyaml
 , nose
+, isPy38
 }:
 
 buildPythonPackage rec {
diff --git a/pkgs/development/tools/build-managers/conan/default.nix b/pkgs/development/tools/build-managers/conan/default.nix
index 59b1b14ac5fa..8ddfd6b8e4ff 100644
--- a/pkgs/development/tools/build-managers/conan/default.nix
+++ b/pkgs/development/tools/build-managers/conan/default.nix
@@ -87,5 +87,6 @@ in newPython.pkgs.buildPythonApplication rec {
     license = licenses.mit;
     maintainers = with maintainers; [ HaoZeke ];
     platforms = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/development/tools/database/litecli/default.nix b/pkgs/development/tools/database/litecli/default.nix
index 8881bce1a388..429fa45d3b80 100644
--- a/pkgs/development/tools/database/litecli/default.nix
+++ b/pkgs/development/tools/database/litecli/default.nix
@@ -41,5 +41,6 @@ python3Packages.buildPythonApplication rec {
     homepage = https://litecli.com;
     license = licenses.bsd3;
     maintainers = with maintainers; [ Scriptkiddi ];
+    broken = true;
   };
 }
diff --git a/pkgs/development/tools/misc/act/default.nix b/pkgs/development/tools/misc/act/default.nix
index bf1cae3edc72..c63c0868bec1 100644
--- a/pkgs/development/tools/misc/act/default.nix
+++ b/pkgs/development/tools/misc/act/default.nix
@@ -18,5 +18,6 @@ buildGoModule rec {
     homepage = "https://circleci.com/";
     license = licenses.mit;
     maintainers = with maintainers; [ filalex77 ];
+    broken = true;
   };
 }
diff --git a/pkgs/development/tools/parinfer-rust/default.nix b/pkgs/development/tools/parinfer-rust/default.nix
index 0d7c806d2f46..6ad9f2ca5675 100644
--- a/pkgs/development/tools/parinfer-rust/default.nix
+++ b/pkgs/development/tools/parinfer-rust/default.nix
@@ -32,5 +32,6 @@ rustPlatform.buildRustPackage rec {
     license = licenses.isc;
     maintainers = with maintainers; [ eraserhd ];
     platforms = platforms.all;
+    broken = true;
   };
 }
diff --git a/pkgs/development/tools/prospector/default.nix b/pkgs/development/tools/prospector/default.nix
index 38472ce86f01..2166c72c5a12 100644
--- a/pkgs/development/tools/prospector/default.nix
+++ b/pkgs/development/tools/prospector/default.nix
@@ -70,5 +70,6 @@ buildPythonApplication rec {
     maintainers = with maintainers; [
       kamadorueda
     ];
+    broken = true;
   };
 }
diff --git a/pkgs/games/atanks/default.nix b/pkgs/games/atanks/default.nix
index b11a177e0455..10ae0977fd6d 100644
--- a/pkgs/games/atanks/default.nix
+++ b/pkgs/games/atanks/default.nix
@@ -19,5 +19,6 @@ stdenv.mkDerivation rec {
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
     license = licenses.gpl2;
+    broken = true;
   };
 }
diff --git a/pkgs/games/freeorion/default.nix b/pkgs/games/freeorion/default.nix
index dfad954f0f0c..320105430c0c 100644
--- a/pkgs/games/freeorion/default.nix
+++ b/pkgs/games/freeorion/default.nix
@@ -48,5 +48,6 @@ stdenv.mkDerivation rec {
     license = with licenses; [ gpl2 cc-by-sa-30 ];
     platforms = platforms.linux;
     maintainers = with maintainers; [ tex ];
+    broken = true;
   };
 }
diff --git a/pkgs/games/lincity/ng.nix b/pkgs/games/lincity/ng.nix
index 67f15be1ed3e..cbcdbf8c1f61 100644
--- a/pkgs/games/lincity/ng.nix
+++ b/pkgs/games/lincity/ng.nix
@@ -51,5 +51,6 @@ stdenv.mkDerivation {
     license = licenses.gpl2;
     maintainers = with maintainers; [ raskin ];
     platforms = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/games/onscripter-en/default.nix b/pkgs/games/onscripter-en/default.nix
index 2ad23a72368b..a4d7f99ad52a 100644
--- a/pkgs/games/onscripter-en/default.nix
+++ b/pkgs/games/onscripter-en/default.nix
@@ -31,5 +31,6 @@ stdenv.mkDerivation {
     license = licenses.gpl2;
     platforms = platforms.unix;
     maintainers = with maintainers; [ abbradar ];
+    broken = true;
   };
 }
diff --git a/pkgs/misc/emulators/atari800/default.nix b/pkgs/misc/emulators/atari800/default.nix
index 38dc54ea9d7b..bfe5afb50ac8 100644
--- a/pkgs/misc/emulators/atari800/default.nix
+++ b/pkgs/misc/emulators/atari800/default.nix
@@ -37,5 +37,6 @@ stdenv.mkDerivation rec{
     maintainers = [ maintainers.AndersonTorres ];
     license = licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/misc/emulators/hatari/default.nix b/pkgs/misc/emulators/hatari/default.nix
index 278d8d8dc5f3..dec3a5b26e49 100644
--- a/pkgs/misc/emulators/hatari/default.nix
+++ b/pkgs/misc/emulators/hatari/default.nix
@@ -19,5 +19,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ ];
+    broken = true;
   };
 }
diff --git a/pkgs/os-specific/darwin/libtapi/default.nix b/pkgs/os-specific/darwin/libtapi/default.nix
index 182d1db3bfd5..f037fb756fca 100644
--- a/pkgs/os-specific/darwin/libtapi/default.nix
+++ b/pkgs/os-specific/darwin/libtapi/default.nix
@@ -25,6 +25,7 @@ stdenv.mkDerivation {
   meta = with lib; {
     license = licenses.apsl20;
     maintainers = with maintainers; [ matthewbauer ];
+    broken = true;
   };
 
 }
diff --git a/pkgs/servers/monitoring/plugins/esxi.nix b/pkgs/servers/monitoring/plugins/esxi.nix
index dfa13c805e59..d076a96cd9fe 100644
--- a/pkgs/servers/monitoring/plugins/esxi.nix
+++ b/pkgs/servers/monitoring/plugins/esxi.nix
@@ -33,5 +33,6 @@ in python2Packages.buildPythonApplication rec {
     homepage = https://www.claudiokuenzler.com/nagios-plugins/;
     license = licenses.gpl2;
     maintainers = with maintainers; [ peterhoeg ];
+    broken = true;
   };
 }
diff --git a/pkgs/servers/sql/percona/5.6.x.nix b/pkgs/servers/sql/percona/5.6.x.nix
index 860c1f8e94f7..756e96c54ed0 100644
--- a/pkgs/servers/sql/percona/5.6.x.nix
+++ b/pkgs/servers/sql/percona/5.6.x.nix
@@ -57,5 +57,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.linux;
     license = licenses.gpl2;
     maintainers = with maintainers; [ grahamc ];
+    broken = true;
   };
 }
diff --git a/pkgs/shells/dgsh/default.nix b/pkgs/shells/dgsh/default.nix
index e2fd845c286e..762afe0af20b 100644
--- a/pkgs/shells/dgsh/default.nix
+++ b/pkgs/shells/dgsh/default.nix
@@ -41,5 +41,6 @@ stdenv.mkDerivation {
     license = with licenses; asl20;
     maintainers = with maintainers; [ vrthra ];
     platforms = with platforms; all;
+    broken = true;
   };
 }
diff --git a/pkgs/tools/X11/ncview/default.nix b/pkgs/tools/X11/ncview/default.nix
index 1f793aa6c4c9..eb084f24392e 100644
--- a/pkgs/tools/X11/ncview/default.nix
+++ b/pkgs/tools/X11/ncview/default.nix
@@ -21,5 +21,6 @@ in stdenv.mkDerivation {
     homepage    = "http://meteora.ucsd.edu/~pierce/ncview_home_page.html";
     license = licenses.gpl3;
     maintainers = with maintainers; [ jmettes ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/audio/google-music-scripts/default.nix b/pkgs/tools/audio/google-music-scripts/default.nix
index f7e96971ab19..1aed00517477 100644
--- a/pkgs/tools/audio/google-music-scripts/default.nix
+++ b/pkgs/tools/audio/google-music-scripts/default.nix
@@ -31,5 +31,6 @@ python3.pkgs.buildPythonApplication rec {
     description = "A CLI utility for interacting with Google Music";
     license = licenses.mit;
     maintainers = with maintainers; [ jakewaksbaum ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/backup/partimage/default.nix b/pkgs/tools/backup/partimage/default.nix
index 4a18deeb57c8..c6ee8125f9ff 100644
--- a/pkgs/tools/backup/partimage/default.nix
+++ b/pkgs/tools/backup/partimage/default.nix
@@ -39,5 +39,6 @@ stdenv.mkDerivation {
     license = stdenv.lib.licenses.gpl2;
     maintainers = [stdenv.lib.maintainers.marcweber];
     platforms = stdenv.lib.platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/tools/compression/lbzip2/default.nix b/pkgs/tools/compression/lbzip2/default.nix
index 7e9cc055abf5..baf429007150 100644
--- a/pkgs/tools/compression/lbzip2/default.nix
+++ b/pkgs/tools/compression/lbzip2/default.nix
@@ -14,5 +14,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl3;
     maintainers = with maintainers; [ abbradar ];
     platforms = platforms.unix;
+    broken = true;
   };
 }
diff --git a/pkgs/tools/filesystems/lizardfs/default.nix b/pkgs/tools/filesystems/lizardfs/default.nix
index 3ae898d4ba8a..05fa059a2d62 100644
--- a/pkgs/tools/filesystems/lizardfs/default.nix
+++ b/pkgs/tools/filesystems/lizardfs/default.nix
@@ -55,5 +55,6 @@ stdenv.mkDerivation rec {
     platforms = platforms.linux;
     license = licenses.gpl3;
     maintainers = [ maintainers.rushmorem ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/filesystems/orangefs/default.nix b/pkgs/tools/filesystems/orangefs/default.nix
index 37f4026799b6..6eb0b7fab273 100644
--- a/pkgs/tools/filesystems/orangefs/default.nix
+++ b/pkgs/tools/filesystems/orangefs/default.nix
@@ -57,5 +57,6 @@ stdenv.mkDerivation rec {
     license = with licenses;  [ asl20 bsd3 gpl2 lgpl21 lgpl21Plus openldap ];
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ markuskowa ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/misc/bmap-tools/default.nix b/pkgs/tools/misc/bmap-tools/default.nix
index 6b7a51e08f51..44d111689530 100644
--- a/pkgs/tools/misc/bmap-tools/default.nix
+++ b/pkgs/tools/misc/bmap-tools/default.nix
@@ -17,5 +17,6 @@ python2Packages.buildPythonApplication rec {
     license = licenses.gpl2;
     maintainers = [ maintainers.dezgeg ];
     platforms = platforms.linux;
+    broken = true;
   };
 }
diff --git a/pkgs/tools/misc/ntfy/default.nix b/pkgs/tools/misc/ntfy/default.nix
index 26517361ae2d..4ad633c9ae7d 100644
--- a/pkgs/tools/misc/ntfy/default.nix
+++ b/pkgs/tools/misc/ntfy/default.nix
@@ -33,5 +33,6 @@ pythonPackages.buildPythonApplication rec {
     homepage = http://ntfy.rtfd.org/;
     license = licenses.gpl3;
     maintainers = with maintainers; [ jfrankenau kamilchm ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/networking/ip2unix/default.nix b/pkgs/tools/networking/ip2unix/default.nix
index d2dbd235e11c..7fb80d8bc29f 100644
--- a/pkgs/tools/networking/ip2unix/default.nix
+++ b/pkgs/tools/networking/ip2unix/default.nix
@@ -42,5 +42,6 @@ stdenv.mkDerivation rec {
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.lgpl3;
     maintainers = [ stdenv.lib.maintainers.aszlig ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/networking/mitmproxy/default.nix b/pkgs/tools/networking/mitmproxy/default.nix
index 53369baa01c8..79f0058e9d6d 100644
--- a/pkgs/tools/networking/mitmproxy/default.nix
+++ b/pkgs/tools/networking/mitmproxy/default.nix
@@ -79,5 +79,6 @@ buildPythonPackage rec {
     homepage    = https://mitmproxy.org/;
     license     = licenses.mit;
     maintainers = with maintainers; [ fpletz kamilchm ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/networking/packetdrill/default.nix b/pkgs/tools/networking/packetdrill/default.nix
index 623645efc0ca..1e59d65d68b3 100644
--- a/pkgs/tools/networking/packetdrill/default.nix
+++ b/pkgs/tools/networking/packetdrill/default.nix
@@ -25,5 +25,6 @@ stdenv.mkDerivation {
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ dmjio cleverca22 ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/networking/py-wmi-client/default.nix b/pkgs/tools/networking/py-wmi-client/default.nix
index 7a2774002891..e29670a38bfa 100644
--- a/pkgs/tools/networking/py-wmi-client/default.nix
+++ b/pkgs/tools/networking/py-wmi-client/default.nix
@@ -21,5 +21,6 @@ pythonPackages.buildPythonApplication rec {
     homepage = "https://github.com/dlundgren/py-wmi-client";
     license = licenses.mit;
     maintainers = with maintainers; [ peterhoeg ];
+    broken = true;
   };
 }
diff --git a/pkgs/tools/package-management/cargo-download/default.nix b/pkgs/tools/package-management/cargo-download/default.nix
index 1cb53a4b6c8d..b86201fcc9bf 100644
--- a/pkgs/tools/package-management/cargo-download/default.nix
+++ b/pkgs/tools/package-management/cargo-download/default.nix
@@ -1,7 +1,7 @@
 { stdenv, lib, fetchgit, darwin, buildPlatform
 , buildRustCrate, buildRustCrateHelpers, defaultCrateOverrides }:
 
-((import ./Cargo.nix {
+(((import ./Cargo.nix {
   inherit lib buildPlatform buildRustCrate buildRustCrateHelpers fetchgit;
   cratesIO = import ./crates-io.nix { inherit lib buildRustCrate buildRustCrateHelpers; };
 }).cargo_download {}).override {
@@ -11,4 +11,8 @@
         darwin.apple_sdk.frameworks.Security;
     };
   };
-}
+}).overrideAttrs ({ meta ? {}, ... }: {
+  meta = meta // {
+    broken = true;
+  };
+})
diff --git a/pkgs/tools/security/gencfsm/default.nix b/pkgs/tools/security/gencfsm/default.nix
index 63d1bab89d7f..ee11433af7d9 100644
--- a/pkgs/tools/security/gencfsm/default.nix
+++ b/pkgs/tools/security/gencfsm/default.nix
@@ -35,5 +35,6 @@ stdenv.mkDerivation rec {
     license = licenses.gpl2Plus;
     platforms = platforms.linux;
     maintainers = [ maintainers.spacefrogg ];
+    broken = true;
   };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3952454069df..70185154ad0e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15574,7 +15574,7 @@ in
   mysql = mariadb; # TODO: move to aliases.nix
 
   mongodb = hiPrio mongodb-3_4;
-  
+
   mongodb-3_4 = callPackage ../servers/nosql/mongodb/v3_4.nix {
     sasl = cyrus_sasl;
     boost = boost160;
diff --git a/pkgs/top-level/dotnet-packages.nix b/pkgs/top-level/dotnet-packages.nix
index 35cbcebb2422..fae0909545e9 100644
--- a/pkgs/top-level/dotnet-packages.nix
+++ b/pkgs/top-level/dotnet-packages.nix
@@ -562,6 +562,7 @@ let self = dotnetPackages // overrides; dotnetPackages = with self; {
       license = stdenv.lib.licenses.asl20;
       maintainers = with stdenv.lib.maintainers; [ obadz ];
       platforms = with stdenv.lib.platforms; linux;
+      broken = true;
     };
   };
 
@@ -589,6 +590,7 @@ let self = dotnetPackages // overrides; dotnetPackages = with self; {
       license = stdenv.lib.licenses.asl20;
       maintainers = with stdenv.lib.maintainers; [ obadz ];
       platforms = with stdenv.lib.platforms; linux;
+      broken = true;
     };
   };
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 5199634c5bde..076cc1901371 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1681,7 +1681,7 @@ in {
 
   asn1ate = callPackage ../development/python-modules/asn1ate { };
 
-  atlassian-python-api = callPackage ../development/python-modules/atlassian-python-api { };  
+  atlassian-python-api = callPackage ../development/python-modules/atlassian-python-api { };
 
   atomiclong = callPackage ../development/python-modules/atomiclong { };
 
@@ -3605,9 +3605,13 @@ in {
 
   folium = callPackage ../development/python-modules/folium { };
 
-  fontforge = toPythonModule (pkgs.fontforge.override {
+  fontforge = (toPythonModule (pkgs.fontforge.override {
     withPython = true;
     inherit python;
+  })).overrideAttrs (old: {
+    meta = old.meta // {
+      broken = isPy38;
+    };
   });
 
   fonttools = callPackage ../development/python-modules/fonttools { };
@@ -4371,7 +4375,7 @@ in {
 
   nbconvert = callPackage ../development/python-modules/nbconvert { };
 
-  nbformat = if isPy3k then 
+  nbformat = if isPy3k then
     callPackage ../development/python-modules/nbformat { }
   else callPackage ../development/python-modules/nbformat/2.nix { };