Is there an easy way to be inside a python function and get a list of the parameter names?

For example:

def func(a,b,c):

print magic_that_does_what_I_want()

>>> func()

['a','b','c']

Thanks

解決方案

Well we don't actually need inspect here.

>>> func = lambda x, y: (x, y)

>>>

>>> func.__code__.co_argcount

2

>>> func.__code__.co_varnames

('x', 'y')

>>>

>>> def func2(x,y=3):

... print(func2.__code__.co_varnames)

... pass # Other things

...

>>> func2(3,3)

('x', 'y')

>>>

>>> func2.__defaults__

(3,)

For Python 2.5 and older, use func_code instead of __code__, and func_defaults instead of __defaults__.

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