code: def safe_py_code(code):
      '''
      Check a string to see if it has any potentially unsafe routines which
      could be executed via python, this routine is used to improve the
      safety of modules suct as virtualenv
      '''
      bads = (
              'import',
              ';',
              'subprocess',
              'eval',
              'open',
              'file',
              'exec',
              'input')
      for bad in bads:
          if code.count(bad):
              return False
      return Truf safe_py_code(code):
      '''
      Check a string to see if it has any potentially unsafe routines which
      could be executed via python, this routine is used to improve the
      safety of modules suct as virtualenv
      '''
      bads = (
              'import',
              ';',
              'subprocess',
              'eval',
              'open',
              'file',
              'exec',
              'input')
      for bad in bads:
          if code.count(bad):
              return False
      return True
docs: Check a string to see if it has any potentially unsafe routines which
      could be executed via python, this routine is used to improve the
      safety of modules suct as virtualenv