Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
445 views
in Technique[技术] by (71.8m points)

python - Pythonic way to check if two dictionaries have the identical set of keys?

For example, let's say I have to dictionaries:

d_1 = {'peter': 1, 'adam': 2, 'david': 3}

and

d_2 = {'peter': 14, 'adam': 44, 'david': 33, 'alan': 21}

What's the cleverest way to check whether the two dictionaries contain the same set of keys? In the example above, it should return False because d_2 contains the 'alan' key, which d_1 doesn't.

I am not interested in checking that the associated values match. Just want to make sure if the keys are same.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

In Python2,

set(d_1) == set(d_2)

In Python3, you can do this which may be a tiny bit more efficient than creating sets

d1.keys() == d2.keys()

although the Python2 way would work too


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...