Which is the better way to use it? What's the difference between the two?
d = {'a': 1, 'b': 2}
"a" in #This?
d.has_key('a') #this?
According to has_key(key), there are no cases where the two produce different results.
However, has_key() is not supported on Python 3 or higher
Using in is more Python
We recommend that you write in.
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