Copy Stdout to string

[sophie_newbie]

Hi, I'm wondering if its possible to copy all of stdout's output to a
string, while still being able to print on screen. I know you can
capture stdout, but I still need the output to appear on the screen
also...

Thanks!

[Gerard Flanagan]

Re: Copy Stdout to string

On Apr 1, 4:03 pm, sophie_newbie <paulgeele...@g mail.comwrote:

Hi, I'm wondering if its possible to copy all of stdout's output to a
string, while still being able to print on screen. I know you can
capture stdout, but I still need the output to appear on the screen
also...
>
Thanks!

I don't know if it's what you want, but if you're talking about the
output of a single command, then the following (or a variation) should
do. (using 'svn info' as the command).

---------------------------------------------------
import subprocess
from cStringIO import StringIO
import sys

buf = StringIO()

def popen(cmdline):
return subprocess.Pope n(cmdline,
stdout=subproce ss.PIPE,
stderr=subproce ss.STDOUT).stdo ut

for line in popen('svn info'):
print >sys.stdout, 'out: ' + line,
print >buf, 'buf: ' + line,

print

print buf.getvalue()
---------------------------------------------------

[sophie_newbie]

Re: Copy Stdout to string

On Apr 1, 3:03 pm, sophie_newbie <paulgeele...@g mail.comwrote:

Hi, I'm wondering if its possible to copy all of stdout's output to a
string, while still being able to print on screen. I know you can
capture stdout, but I still need the output to appear on the screen
also...
>
Thanks!

I found this, it pretty much does the job, easily modified to write to
a variable instead of a file:

http://www.answermysearches.com/python-how-to-print-to-screen-and-a-file-at-the-same-time/52/