How retrieve keyword arguments from a string in python?

Question

Let\'s say, I have a string:

  > my_string = \'{foo}/{bar}\'
  > my_string.format(foo=\'foo\', bar=\'bar\')
  \'foo/bar\'

Right, coo

Answer 1

Why reinvent the wheel? string.Formatter has the parse() function.

>>> import string
>>> [a[1] for a in string.Formatter().parse('{foo}/{bar}')]
['foo', 'bar']