On UNIX, when the execution of the child fails, we must waitpid() to

prevent leaving zombies.

diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 9e326fbea42c2e940a349b04eab0cc49feefc5d2..227ee0e998041c6c7273f9e9758591afe3af366b 100644 (file)
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -985,6 +985,7 @@ class Popen(object):
             data = os.read(errpipe_read, 1048576) # Exceptions limited to 1 MB
             os.close(errpipe_read)
             if data != "":
+                os.waitpid(self.pid, 0)
                 child_exception = pickle.loads(data)
                 raise child_exception