[Python-Dev] Patch for commands.py to provide callback

[Brad Doctor]

Greetings all,

I have attached a patch for commands.py to provide a callback ability.
Example use:

-------------------------------------
import commands

cmd = 'top -b -n2'

def fancy(out):
    print 'GOT(%s)' % out.strip()

commands.cb = fancy

(s,o) = commands.getstatusoutput(cmd)
print 'OUTPUT (%s)' % o
-------------------------------------

I am not sure if this is the proper forum or means to submit something like
this, so please forgive me and advise accordingly if I am in error.  The
basic idea is obvious, to allow long-running commands to call back whenever
there is output.  This is against python 2.4.  Please let me know if you
have any questions or suggestions.

thanks!!
-brad
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