如何用逗号

Question

拆分蟒蛇名单上有类似的列表：

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

我怎么可以拆分这个列表中，以便输出会是这样的：

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

我曾尝试把它转换为字符串，用逗号分割它，然后把它放回到列表中，但是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']] 

而除去白色空间：

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

你也可以使用纯列表理解（嵌入列表理解）：

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

Answer 2

在列表理解中将每个值拆分','：

industries_list = [s.split(',') for s in industries_list] 

您可能要剥去周围的结果多余的空格：

industries_list = [[w.strip() for w in s.split(',')] for s in industries_list] 

演示：

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

Answer 3

使用.split String类：

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

如果你不想要空格：

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

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