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Full Discussion: Python call to bash script returns empty string
Top Forums Shell Programming and Scripting Python call to bash script returns empty string Post 302642337 by ahmad.diab on Thursday 17th of May 2012 09:47:29 AM
Old 05-17-2012
did you try to delete the space between #! and /usr/bin/env python ??



Code:
#! /usr/bin/env python
 
import subprocess
import sys
 
def PDFGenerator(args=''):
    if args:
       proc = subprocess.Popen(['bash PDFGenerator.sh '+str(args)], stdout=subprocess.PIPE, shell = True)
       #return str(proc.communicate())
       print proc.stdout.read()

---------- Post updated at 16:47 ---------- Previous update was at 16:44 ----------

also try to put below in your code (under your code):

Code:
if __name__ == "__main__":
    main()

 

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LEARN ABOUT FREEBSD

atf-sh

ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME

     atf-sh [-s shell] -- interpreter for shell-based test programs

SYNOPSIS

     atf-sh script

DESCRIPTION

     atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library.

     atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL.  atf-sh executes the inter-
     preter, loads the atf-sh(3) library and then runs the script.  You must consider atf-sh to be a POSIX shell by default and thus should not
     use any non-standard extensions.

     The following options are available:

     -s shell	  Specifies the shell to use instead of the value provided by ATF_SHELL.

ENVIRONMENT

     ATF_LIBEXECDIR    Overrides the builtin directory where atf-sh is located.  Should not be overridden other than for testing purposes.
     ATF_PKGDATADIR    Overrides the builtin directory where libatf-sh.subr is located.  Should not be overridden other than for testing purposes.
     ATF_SHELL	       Path to the system shell to be used in the generated scripts.  Scripts must not rely on this variable being set to select a
		       specific interpreter.

EXAMPLES

     Scripts using atf-sh(3) should start with:

	   #! /usr/bin/env atf-sh

     Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh.  Instead, you have to hardcode
     the path to atf-sh in the script and then use the -s option afterwards as a single parameter:

	   #! /path/to/bin/atf-sh -s/bin/bash

ENVIRONMENT

     ATF_SHELL	  Path to the system shell to be used in the generated scripts.

SEE ALSO

     atf-sh(3)

BSD
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