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

:P

diff --git a/Lib/subprocess.py b/Lib/subprocess.py
index 70d129b3a6c08fcff23c3a000a213c0bbfefef16..187566bc05d746a698d0baa89b41357b91a09b8a 100644 (file)
--- a/Lib/subprocess.py
+++ b/Lib/subprocess.py
@@ -1317,7 +1317,7 @@ class Popen(object):
 
                 # 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)