Make Python testing predictable again
This reorganizes the Python code, scraps the current testing
infrastructure, and implements a simple test discovery and run script
based on the standard Python unittest library so we can trust that our
tests are running.
diff --git a/src/python/grpcio/setup.cfg b/src/python/grpcio/setup.cfg
index 8f69613..52b6b50 100644
--- a/src/python/grpcio/setup.cfg
+++ b/src/python/grpcio/setup.cfg
@@ -1,2 +1,8 @@
+[coverage:run]
+plugins = Cython.Coverage
+
[build_ext]
inplace=1
+
+[build_proto_modules]
+exclude=.*protoc_plugin/protoc_plugin_test\.proto$