Which is faster? (if not b in m) or (if m.count(b) > 0)

[Peter Hansen]

Farel wrote:
> Tim, Are you saying that:
>      not (b in m)
> is faster than:
>     b not in m
> ????

As Bruno tried to tell you, and I quote:

"""
Why don't you try by yourself ?
hint :
from timeit import Timer
help(Timer)
"""

Asking "which is faster" in comp.lang.python is the least efficient way 
of getting an answer, for everyone who reads the newsgroup, everyone who 
tries to help and, most importantly, for yourself.

-Peter