code: def get_string(string):
     
     truestring = string
     if string is not None:
        if '/' in string:
           if os.path.isfile(string):
              try:
                 with open_(string,'r') as f:
                    truestring = ' '.join(line.strip() for line in f)
              except: pass
        if truestring.strip() == '': truestring = None
     return truestring
docs: This function checks if a path was given as string, and tries to read the
         file and return the string.