python - How to restore a builtin when parameter has same name? -


i know you're "not supposed to" use builtin names parameters functions, make sense:

def foo(range=(4,5), type="round", len=2):

but if has been done, , range variable has been processed , no longer needed, how builtin range , use inside foo()?

del range doesn't restore builtin:

unboundlocalerror: local variable 'range' referenced before assignment

for python 2.x

import __builtin__ range = __builtin__.range

for python 3.x

import builtins range = builtins.range

-

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