python3.pkgs.opencensus-context: init at 0.1.3

Split package into top-level Python library.

We need to propagate it just like any other package, otherwise
dependents cannot detect it during installation.

The __init__.py collide since it uses old-style namespaces so we get rid
of those. In the future we may need to extend the namespaces.
This was enough for my dependency opencensus-ext-azure.

Having it as a top-level Python is just common practice; there is no
good reason not to.

(cherry picked from commit b615ba8a5f)

pkgs/development/python-modules/opencensus-context/default.nix

@@ -0,0 +1,28 @@
+{ buildPythonPackage
+, fetchPypi
+, lib
+, unittestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "opencensus-context";
+  version = "0.1.3";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-oDEIw8ENjIC7Xd9cih8DMWH6YZcqmRf5ubOhhRfwCIw=";
+  };
+
+  pythonNamespaces = [
+    "opencensus.common"
+  ];
+
+  doCheck = false; # No tests in archive
+
+  meta = with lib; {
+    description = "OpenCensus Runtime Context";
+    homepage = "https://github.com/census-instrumentation/opencensus-python/tree/master/context/opencensus-context";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ billhuang ];
+  };
+}

pkgs/development/python-modules/opencensus/default.nix

@@ -1,24 +1,11 @@
 { buildPythonPackage
 , fetchPypi
 , lib
-, python
 , unittestCheckHook
 , google-api-core
+, opencensus-context
 }:
 
-let
-  opencensus-context = buildPythonPackage rec {
-    pname = "opencensus-context";
-    version = "0.1.3";
-
-    checkInputs = [ unittestCheckHook ];
-
-    src = fetchPypi {
-      inherit pname version;
-      sha256 = "sha256-oDEIw8ENjIC7Xd9cih8DMWH6YZcqmRf5ubOhhRfwCIw=";
-    };
-  };
-in
 buildPythonPackage rec {
   pname = "opencensus";
   version = "0.11.0";
@@ -28,23 +15,20 @@ buildPythonPackage rec {
     sha256 = "sha256-AmIWq6uJ2U2FBJLz3GWVAFXsT4QRX6bHvq/7pEo0bkI=";
   };
 
-  buildInputs = [
-    # opencensus-context is embedded in opencensus
+  propagatedBuildInputs = [
+    google-api-core
     opencensus-context
   ];
 
-  propagatedBuildInputs = [
-    google-api-core
+  pythonNamespaces = [
+    "opencensus.common"
   ];
 
-  postInstall = ''
-    ln -sf ${opencensus-context}/${python.sitePackages}/opencensus/common/runtime_context \
-      $out/${python.sitePackages}/opencensus/common/
-  '';
+  doCheck = false; # No tests in sdist
 
-  checkInputs = [ unittestCheckHook ];
-
-  pythonImportsCheck = [ "opencensus" ];
+  pythonImportsCheck = [
+    "opencensus.common"
+  ];
 
   meta = with lib; {
     description = "A stats collection and distributed tracing framework";

pkgs/top-level/python-packages.nix

@@ -6457,6 +6457,8 @@ self: super: with self; {
 
   opencensus = callPackage ../development/python-modules/opencensus { };
 
+  opencensus-context = callPackage ../development/python-modules/opencensus-context { };
+
   opencv3 = toPythonModule (pkgs.opencv3.override {
     enablePython = true;
     pythonPackages = self;