On Tue, Sep 8, 2015 at 9:03 PM, loial <jldunn2...@gmail.com> wrote: > I need to execute an external shell script via subprocess on Linux. > > One of the parameters needs to be passed inside double quotes > > But the double quotes do not appear to be passed to the script > > I am using : > > myscript = '/home/john/myscript' > commandline = myscript + ' ' + '\"Hello\"' > > process = subprocess.Popen(commandline, shell=True, stdout=subprocess.PIPE, > stderr=subprocess.PIPE) > output,err = process.communicate() > > > if I make the call from another shell script and escape the double quotes it > works fine, but not when I use python and subprocess. > > I have googled this but cannot find a solution...is there one?
First off: Can you remove the shell=True and provide the command as a list, so it doesn't need to be parsed? If you can, that would be MUCH better. But if you can't, the simple fix is to use a raw string literal for your Hello. The backslashes are getting lost: >>> print('\"Hello\"') "Hello" >>> print(r'\"Hello\"') \"Hello\" If In Doubt, Print It Out. It's amazing how much you can learn with a few well-placed print() calls :) ChrisA -- https://mail.python.org/mailman/listinfo/python-list