How to check if a list is empty in Python?

2018-06-07 08:07:43

This question already has an answer here:

How do I check if a list is empty? 25 answers

if not myList:
  print "Nothing here"

在布尔上下文if some_list:列表的计算结果为False（比如if some_list: 。

I like Zarembisty's answer. Although, if you want to be more explicit, you can always do:

if len(my_list) == 0:
    print "my_list is empty"

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