[Tutor] Add newline's, wrap, a long string

A.T.Hofkamp a.t.hofkamp at tue.nl
Wed Apr 29 09:48:17 CEST 2009

David wrote:
> I am getting information from .txt files and posting them in fields on a 
> web site. I need to break up single strings so they are around 80 
> characters then a new line because when I enter the info to the form on 
> the website it has fields and it errors out with such a long string.
> here is a sample of the code;
> #!/usr/bin/python
> import subprocess
> import os
> u_e = subprocess.Popen(
> 'grep USE /tmp/comprookie2000/emerge_info.txt |head -n1|cut -d\\"-f2', 
> shell=True, stdout=subprocess.PIPE,)
> os.waitpid(u_e.pid, 0)
> USE = u_e.stdout.read().strip()

Why not do the above command sequence entirely in Python instead of this 
sub-process trickery with its shell quoting problems?

It seems a much nicer solution to me.

> L = len(USE)
> print L
> print USE
> L returns 1337

First stop for any problem that you have: The Python standard library.

A search told me that Python has a textwrap module in stdlib.
Would that be of use to you?


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