在 ：
import types
import functools
def copy_func(f):
"""Based on http://stackoverflow.com/a/6528148/190597 (Glenn Maynard)"""
g = types.FunctionType(f.__code__, f.__globals__, name=f.__name__,
argdefs=f.__defaults__,
closure=f.__closure__)
g = functools.update_wrapper(g, f)
g.__kwdefaults__ = f.__kwdefaults__
return g
def f(arg1, arg2, arg3, kwarg1="FOO", *args, kwarg2="BAR", kwarg3="BAZ"):
return (arg1, arg2, arg3, args, kwarg1, kwarg2, kwarg3)
f.cache = [1,2,3]
g = copy_func(f)
print(f(1,2,3,4,5))
print(g(1,2,3,4,5))
print(g.cache)
assert f is not g
产量
(1, 2, 3, (5,), 4, 'BAR', 'BAZ')
(1, 2, 3, (5,), 4, 'BAR', 'BAZ')
[1, 2, 3]
在 ：
import types
import functools
def copy_func(f):
"""Based on http://stackoverflow.com/a/6528148/190597 (Glenn Maynard)"""
g = types.FunctionType(f.func_code, f.func_globals, name=f.func_name,
argdefs=f.func_defaults,
closure=f.func_closure)
g = functools.update_wrapper(g, f)
return g
def f(x, y=2):
return x,y
f.cache = [1,2,3]
g = copy_func(f)
print(f(1))
print(g(1))
print(g.cache)
assert f is not g
产量
(1, 2)
(1, 2)
[1, 2, 3]
602392714
清零编程群