Bugs item #1180160, was opened at 2005-04-10 13:41
Message generated for change (Comment added) made by astrand
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Category: Python Library
Group: Python 2.4
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: neuhauser (neuhauser)
Assigned to: Peter Åstrand (astrand)
Summary: subprocess.Popen fails with closed stdout
Initial Comment:
I have a piece of code that gets run in a script that
has its stdout closed:
import sys
sys.stdout = sys.stderr
c = subprocess.Popen (...,
stdin = subprocess.PIPE,
stdout = subprocess.PIPE,
stderr = subprocess.STDOUT)
and this is what I get:
Sending SVNR/permissions
Transmitting file data .svn: Commit failed (details
follow):
svn: 'pre-commit' hook failed with error output:
Traceback (most recent call last):
(...)
File ".../__init__.py", line 40, in run
stderr = subprocess.STDOUT)
File "/usr/local/lib/python2.4/subprocess.py", line
554, in __init__
errread, errwrite)
File "/usr/local/lib/python2.4/subprocess.py", line
986, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory
This is the child_traceback:
File "/usr/local/lib/python2.4/subprocess.py", line
955, in _execute_child
File "/usr/local/lib/python2.4/os.py", line 341, in
execvp
File "/usr/local/lib/python2.4/os.py", line 379, in
_execvpe
func(fullname, *argrest)
OSError: [Errno 2] No such file or directory
http://docs.python.org/lib/node230.html claims that
"PIPE indicates that a new pipe to the child should be
created" which doesn't seem to be the case.
Subversion code that runs the script can be seen at
http://svn.collab.net/viewcvs/svn/trunk/subversion/libsvn_repos/hooks.c
(run_hook_cmd()).
----------------------------------------------------------------------
>Comment By: Peter Åstrand (astrand)
Date: 2005-06-23 18:05
Message:
Logged In: YES
user_id=344921
No response in over 2 months. Closing.
----------------------------------------------------------------------
Comment By: Peter Åstrand (astrand)
Date: 2005-04-14 21:26
Message:
Logged In: YES
user_id=344921
I can't se anything in your report that indicates that a
closed stdout is the problem. execvp() says "No such file or
directory", which means that the file you are trying to
execute doesn't exist. Do you have any reason to believe
that this error message is not true?
It would help if you could give me a working *Python*
example, indicating the problem. The source
http://svn.collab.net/viewcvs/svn/trunk/subversion/libsvn_repos/hooks.c
is written in C, not Python...
----------------------------------------------------------------------
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