parameters: (path)
return_statement: return os.path.splitext(path)[1]
docstring: Return the filename extension.
  
      >>> path_ext('test.c')
      '.c'
      >>> path_ext('/tmp/file.my.ext')
      '.ext'
docstring_summary: Return the filename extension.
docstring_tokens: Return the filename extension .
function: def path_ext(path):
      ''' Return the filename extension.
  
      >>> path_ext('test.c')
      '.c'
      >>> path_ext('/tmp/file.my.ext')
      '.ext'
      '''
      return os.path.splitext(path)[1]
function_tokens: def path_ext ( path ) : return os . path . splitext ( path ) [ 1 ]