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Python Python Collections (2016, retired 2019) Dictionaries Packing and Unpacking Dictionaries

Akshaan Mazumdar
Akshaan Mazumdar
3,748 Points

why is 1 being printed in this example ? the length of name = "Kenneth" is 1?

def packing(**kwargs): ... print(len(kwargs)) packing(name="Kenneth") 1

1 Answer

Stuart Wright
Stuart Wright
41,102 Points

The length is one because you have passed one keyword argument. If you write:

packing(name="Kenneth", age=10)

The length will be two. The actual length of the individual elements isn't considered. Change the body of the function to:

print(kwargs)

And you'll see a dictionary is printed containing the keyword arguments. It is this dictionary you're currently printing the length of.

Akshaan Mazumdar
Akshaan Mazumdar
3,748 Points

Thanks. Do u have any extra material to study kwargs and packing/unpacking further??

Stuart Wright
Stuart Wright
41,102 Points

The official documentation is a good place to start - it has quite a few examples:

https://docs.python.org/3.6/tutorial/controlflow.html#keyword-arguments