獲取項目由startswith

Question

我有以下列表？現在，我有：

if 'parallel=' in argv: 
    parallel = ?? # item.split('parallel=')[1] 
else: 
    parallel = None 

Answer 1

>>> v 
['/my/file.py', 'parallel=2', 'parts=4'] 
>>> for thing in v: 
     if 'parallel' in thing: 
      print thing.split('='), thing.split('=')[-1] 
      print thing.partition('='), thing.partition('=')[-1] 


['parallel', '2'] 2 
('parallel', '=', '2') 2 

Answer 2

您可以使用列表理解：

>>> [i.split('=')[1] for i in a if 'parallel' in i] 
['2']