2018-04-03

python中的那些警告

python中的那些警告,有时警告不仅是编程风格的问题.

This dictionary creation could be rewritten as a dictionary literal.

原:

1 2	dic = {} dic['aaa'] = 5

后:

1 2	dic = dict() dic['aaa'] = 5

why?

1 2	# 因为你可能事先已经声明过dic了: dic = {'aaa': 5}