Close #12114: fix a potential deadlock in packaging.util._find_exe_version()
Avoid also zombi processes: Popen.communicate() calls its wait() method.
diff --git a/Lib/packaging/util.py b/Lib/packaging/util.py
index 71ce819..bf31c31 100644
--- a/Lib/packaging/util.py
+++ b/Lib/packaging/util.py
@@ -464,7 +464,7 @@
return None
pipe = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE)
try:
- stdout, stderr = pipe.stdout.read(), pipe.stderr.read()
+ stdout, stderr = pipe.communicate()
finally:
pipe.stdout.close()
pipe.stderr.close()