bpo-36342: Fix test_multiprocessing in test_venv (GH-12513)
when platform lacks a functioning sem_open implementation
https://bugs.python.org/issue36342
diff --git a/Lib/test/test_venv.py b/Lib/test/test_venv.py
index 6822d56..278c686 100644
--- a/Lib/test/test_venv.py
+++ b/Lib/test/test_venv.py
@@ -14,7 +14,8 @@
import sys
import tempfile
from test.support import (captured_stdout, captured_stderr, requires_zlib,
- can_symlink, EnvironmentVarGuard, rmtree)
+ can_symlink, EnvironmentVarGuard, rmtree,
+ import_module)
import threading
import unittest
import venv
@@ -315,6 +316,10 @@
"""
Test that the multiprocessing is able to spawn.
"""
+ # Issue bpo-36342: Instanciation of a Pool object imports the
+ # multiprocessing.synchronize module. Skip the test if this module
+ # cannot be imported.
+ import_module('multiprocessing.synchronize')
rmtree(self.env_dir)
self.run_with_capture(venv.create, self.env_dir)
envpy = os.path.join(os.path.realpath(self.env_dir),
diff --git a/Misc/NEWS.d/next/Tests/2019-03-23-13-58-49.bpo-36342.q6Quiq.rst b/Misc/NEWS.d/next/Tests/2019-03-23-13-58-49.bpo-36342.q6Quiq.rst
new file mode 100644
index 0000000..a7c9298
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2019-03-23-13-58-49.bpo-36342.q6Quiq.rst
@@ -0,0 +1 @@
+Fix test_multiprocessing in test_venv if platform lacks functioning sem_open.