CODEWITHSUNDEEP
pythonfunctionargumentsargument-unpacking
Monsieur Pierre Doune
Monsieur Pierre Doune

Reputation: 747

How to unpack parameters in Python?

Is it possible to unpack parameters in python like in javascript?

def foo([ arg ]):
    pass

foo([ 42 ])

Upvotes: 3

Views: 2370

Answers (1)

Patrick Haugh
Patrick Haugh

Reputation: 61063

Parameter unpacking was removed in Python 3 because it was confusing. In Python 2 you can do

def foo(arg, (arg2, arg3)):
    pass

foo( 32, [ 44, 55 ] )

The equivalent code in Python 3 would be either

def foo(arg, arg2, arg3):
    pass

foo( 32, *[ 44, 55 ] )

or

def foo(arg, args):
    arg2, arg3 = args

foo( 32, [ 44, 55 ] )

Upvotes: 3

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