Test functools.partial for https://www.v2ex.com/t/134401

partial_eg.py

from functools import partial
def func(a, b, c):
    print a, b, c

func_fix_b = partial(func, b="what you want,")
func_fix_b(a="Here is", c="take it")
# Here is what you want, take it
func_fix_b("Here is", c="take it")
# Here is what you want, take it

# This is from Python Doc
# https://docs.python.org/2/library/functools.html
basetwo = partial(int, base=2)
basetwo.__doc__ = 'Convert base 2 string to an int.'
basetwo('10010')
# 18