python - Assignment build in functions -

i found example make me curious:

int = float def parse_string(s):     return int(s) print(parse_string('42'))

the returned result 42.0. int , float build in functions. how come can assign float int (build in functions)? seems wired me.

python use references objects.

when write int = float, change int reference point same object (a built-in function here) 1 pointed float reference.

you don't change nature of int of course.

you can restore int reference importing __builtin__:

import __builtin__  int = __builtin__.int

Tomorrow