Filtering through an external process

[Scott David Daniels]

Paul Rubin wrote:

> Anyone know if there's code around to filter text through an external
> process?  Sort of like the Emacs "filter-region" command.  For
Check out popen2 -- its the piece you need.

dest, result = os.popen2('cmd')
dest.write('echo Hello world\n')
dest.write('exit\n')
dest.close()
result.read()


So, perhaps you mean:
     import os

     def filtered(command, source):
         dest, result = os.popen2(command)
         dest.write(source)
         dest.close()
         try:
              return result.read()
         finally:
              result.close()


-Scott David Daniels
Scott.Daniels at Acm.Org