From 8035662bdcfbdffd1c294c5d28479733358407ca Mon Sep 17 00:00:00 2001
From: Vadym Matsishevskyi <25311427+vam-google@users.noreply.github.com>
Date: Mon, 1 Feb 2021 11:19:20 -0800
Subject: [PATCH] fix: Fix namespace packages conflict issue (#757)

* fix: Fix namespace packages conflict issue

This fixes the https://github.com/googleapis/gapic-generator/issues/3334 by excluding system-wide site-packages dir from python packages resolution path completely.

This pretty much implements the long-standing featrue request for rules_python https://github.com/bazelbuild/bazel/issues/4939, but only in scope of gapic-generator-python.

* Format with autopep8
---
 gapic/cli/generate_with_pandoc.py | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/gapic/cli/generate_with_pandoc.py b/gapic/cli/generate_with_pandoc.py
index 264d1c8b0b..4a31f76292 100644
--- a/gapic/cli/generate_with_pandoc.py
+++ b/gapic/cli/generate_with_pandoc.py
@@ -1,9 +1,14 @@
 import os
-
-from gapic.cli import generate
+import sys
 
 if __name__ == '__main__':
     os.environ['PYPANDOC_PANDOC'] = os.path.join(
         os.path.abspath(__file__).rsplit("gapic", 1)[0], "pandoc")
     os.environ['LC_ALL'] = 'C.UTF-8'
-    generate.generate()
+    os.environ['PYTHONNOUSERSITE'] = 'True'
+
+    entry_point_script = os.path.join(
+        os.path.dirname(os.path.abspath(__file__)), "generate.py")
+    args = [sys.executable, entry_point_script] + sys.argv[1:]
+
+    os.execv(args[0], args)