pythonTemplate.py

#!/bin/env python2.7
import sys
import os
import argparse



def main():
    args=processArgs()
    

def processArgs():
    class MyParser(argparse.ArgumentParser):
        def error(self, message):
            sys.stderr.write('\nError: %s\n\n' % message)
            self.print_help()
            sys.exit(2)
    
    class Checkerrors(argparse.Action) :
        def __call__(self,parser,namespace,value,option_string) :
            if (option_string==None) :
                if (os.path.isfile(value)==False) :
                    parser.error("The -f flag needs a valid filename")
                else :
                    setattr(namespace,self.dest,value)
            
    
    
    
    #argParser = MyParser(usage=("%s (sourceDir & filter) | filterFile" % (os.path.basename(sys.argv[0]))))
    argParser = MyParser(description="""CHANGEME
                         """)

    argParser.add_argument('file', metavar="", action=Checkerrors, help="Changeme")
    ap=argParser.parse_args()
    return ap




#This is required because by default this is a module.  Running this makes it execute main as if it is a script
if __name__ == '__main__':
    main()