python - 如何用逗号分割 python 列表

Question

我有一个类似的列表:

industries_list = ["Computers, Internet","Photography, Tourism","Motoring, Manufacturing"]

我怎样才能拆分这个列表，以便输出类似于:

industries_list = [["Computers","Internet"],["Photography","Tourism"],["Motoring","Manufacturing"]]

我试过将它转换为字符串，用逗号分隔，然后将它放回列表中，但这并没有给我想要的结果。

Answer 1

使用列表理解:

>>> industries_list = ["Computers, Internet","Photography, Tourism","Motoring, Manufacturing"]
>>> [s.split(',') for s in industries_list]
[['Computers', ' Internet'], ['Photography', ' Tourism'], ['Motoring', ' Manufacturing']]

并删除空白:

>>> from string import strip
>>> [map(strip, s.split(',')) for s in industries_list]
[['Computers', 'Internet'], ['Photography', 'Tourism'], ['Motoring', 'Manufacturing']]

您也可以使用纯列表推导(嵌入式列表推导):

>>> [[w.strip() for w in s.split(',')] for s in industries_list]
[['Computers', 'Internet'], ['Photography', 'Tourism'], ['Motoring', 'Manufacturing']]