Need help running external program

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Rigga wrote:

> Hi,
> 
> I am running the line of code below from a shell script and it works fine,
> however I am at a total loss on how i can run it from within a Python
> script as every option I have tried fails and it appears to be down to the
> escaping of certain characters.
> 
> wget -q www.anywebpage.com -O - | tr '\r' '\n' | tr \' \" | sed -n
> 's/.*url="\([^"]*\)".*/\1/p'
If your problem is getting a python string without worrying about how to
escape the escape sequences, try:

r"""wget -q www.anywebpage.com -O - | tr '\r' '\n' | tr \' \" | sed -n
's/.*url="\([^"]*\)".*/\1/p'"""

You should be able to pass this directly to a popen() function.