What are Kwarg!!??
I have been going through a tutorial in django, trying to learn the language, and I stumbled on this.
I would really appreciate if some can post / point to a simple example that would help grasp why and how this is used.
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4The language is not "Django". The language is Python. – Daniel Roseman Mar 10 '11 at 06:01
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1possible duplicate of [What does \*\* (double star) and \* (star) do for Python parameters?](http://stackoverflow.com/questions/36901/what-does-double-star-and-star-do-for-python-parameters) – Mp0int Jul 24 '14 at 13:42
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See the similar question [#3394835](http://stackoverflow.com/questions/3394835/args-and-kwargs) (*args and **kwargs) – Jamie Czuy Mar 10 '11 at 14:33
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1Try the Python tutorial instead. [Keyword arguments](https://docs.python.org/2/tutorial/controlflow.html#keyword-arguments). – Ignacio Vazquez-Abrams Mar 10 '11 at 05:39
3 Answers
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Based on Keyword arguments' documentation pointed out by @Ignacio Vazquez-Abrams
**kwargs allows you to handle named arguments that you have not defined in advance.
In a function call, keyword arguments must follow positional arguments.
All the keyword arguments passed must match one of the arguments accepted by the function (e.g. actor is not a valid argument for the parrot function), and their order is not important.
Édouard Lopez
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Try this awesome explanation from digital ocean.
In summary, **kwargs is dict that holds parameters and can be used by first passing it through a view func e.g
def fun(req, **kwargs)
and then get values inside the function like this
kwargs.get('key_name').
mutabazigakuba
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Check this article
def print_kwargs(**kwargs):
for key in kwargs:
print("The key {} holds {} value".format(key, kwargs[key]))
print_kwargs(a=1, b=2, c="Some Text")
Output:
The key a holds 1 value
The key b holds 2 value
The key c holds Some Text value
