4 ms·

I think the reason not to write `== None` is that classes can override `==`: class C: def eq(self, other): return True C() == None # True

by pansa2 6y ago

I think the reason not to write `== None` is that classes can override `==`: class C: def __eq__(self, other): return True C() == None # True C() is None # False

eirki 6y ago
It is also marginally faster, I think.
- dagw 6y ago
  Just did a quick check, and looping over an array of 1 million Nones and checking each element el==None was roughly 25% slower than el is None edit: Doing None==el was roughly 15% slower