正则表达式用于拆分包含逗号的字符串

Question

我怎么能用逗号分割一个字符串,其中包含逗号本身？我们说这个字符串是:

object = """{"alert", "Sorry, you are not allowed to do that now, try later", "success", "Welcome, user"}"""

如何确保在拆分后我只获得四个元素？

Answer 1

>>> from ast import literal_eval
>>> obj = '{"alert", "Sorry, you are not allowed to do that now, try later", "success", "Welcome, user"}'
>>> literal_eval(obj[1:-1])
('alert', 'Sorry, you are not allowed to do that now, try later', 'success', 'Welcome, user')

在Python3.2 +上你可以简单地使用literal_eval(obj).