commit 253c0bff9aaabaf455534d65eeaefee6d7967ef9
author Gregory P. Smith ext:(%20%5BGoogle%20Inc.%5D) <greg@krypto.org> Sat May 28 19:24:14 2016 +0000
committer Gregory P. Smith ext:(%20%5BGoogle%20Inc.%5D) <greg@krypto.org> Sat May 28 19:24:14 2016 +0000
tree 2b5e1da21751afff4f4eb3766be9f94857f6a52b
parent cb0fc27f207e1e0ace57b8ceac1391bd4e79ad46

issue26083: Avoid duplicate error message string from a subprocess exec failure.Avoid a duplicate error message string from a subprocess exec failure.
:P

Lib/subprocess.py

diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 70d129b3..187566b 100644
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -1317,7 +1317,7 @@
 
                 # Wait for exec to fail or succeed; possibly raising exception
                 data = _eintr_retry_call(os.read, errpipe_read, 1048576)
-                pickle_bits = [data]
+                pickle_bits = []
                 while data:
                     pickle_bits.append(data)
                     data = _eintr_retry_call(os.read, errpipe_read, 1048576)