Passing File Objects into Subprocess.Popen

[Antoine Pitrou]

On Thu, 04 Nov 2010 17:13:09 -0500
Brandon Harris <brandon.harris at reelfx.com> wrote:
>   I'm running python 2.5 and have bumped into an issue whereby the PIPE 
> in subprocess.Popen locks up after taking too many characters. I found 
> some documentation that discuss this problem and offers some ideas for 
> solutions, the best one being to pass a file object into subprocess 
> instead of PIPE.

This sounds rather unlikely. Have you used communicate()?

>      process = subprocess.Popen(my_cmd, stderr=my_stderr, stdout=my_stdout)
>      process.wait()
> 
>      print my_stderr.read()
>      print my_stdout.read()

Try to rewind the file pointer before reading from it.

Regards

Antoine.