Is there a way to perform “if” in python's lambda

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长发绾君心
长发绾君心 2020-12-12 08:38

In python 2.6, I want to do:

f = lambda x: if x==2 print x else raise Exception()
f(2) #should print \"2\"
f(3) #should throw an exception
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16条回答
  •  轻奢々
    轻奢々 (楼主)
    2020-12-12 09:26

    note you can use several else...if statements in your lambda definition:

    f = lambda x: 1 if x>0 else 0 if x ==0 else -1
    

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