In [1]:

    

import builtins


    

In [2]:

    

print(len('abc'))


    

    




3

In [3]:

    

print(builtins.len('abc'))


    

    




3

In [4]:

    

print(len)


    

    




<built-in function len>

In [5]:

    

print(builtins.len)


    

    




<built-in function len>

In [6]:

    

print(builtins.len is len)


    

    




True

In [7]:

    

print(__builtins__.len('abc'))


    

    




3

In [8]:

    

print(__builtins__.len is len)


    

    




True

In [9]:

    

print(__builtins__ is builtins)


    

    




True