** works for keyword arguments: it collects them into a new dictionary, : Varible length parameter « Function « Python Tutorial






def f(**args): print args

f(  )
f(a=1, b=2)
def f(a, *pargs, **kargs): print a, pargs, kargs
f(1, 2, 3, x=1, y=2)








10.5.Varible length parameter
10.5.1.Varible length parameter
10.5.2.variable length arguments
10.5.3.Keyword Variable Arguments (Dictionary)
10.5.4.Both keyword and non-keyword variable arguments may be used in the same function as long as the keyword dictionary is last
10.5.5.Calling Functions with Variable Argument Objects
10.5.6.** works for keyword arguments: it collects them into a new dictionary,
10.5.7.A dictionary containing all keyword arguments whose keyword doesn't correspond to a formal parameter
10.5.8.*args and **kwargs example