*args and **kwargs
Smith
smith at smith.com
Fri Sep 2 09:31:26 EDT 2016
Hello to all,
I'm trying to understand the concept of * args and ** kwarg with python3
But I can not understand why I returns the error message "SyntaxError:
positional argument follows the keyword argument" when I insert values.
You can help me?
def start(data=None, *args, **kwargs):
print('==== Arguments =======')
print('data is: ', data)
print('args is:', args)
print('kwargs is:', kwargs)
In [22]: def start(data=None, *args, **kwargs):
print('==== Arguments =======')
print('data is: ', data)
print('args is:', args)
print('kwargs is:', kwargs)
In [23]: start(data="Fish",2,3,tox="tux")
File "<ipython-input-23-eb9c3abb9941>", line 1
start(data="Fish",2,3,tox="tux")
^
SyntaxError: positional argument follows keyword argument
In [24]: start(data="Fish",tox="tux")
==== Arguments =======
data is: Fish
args is: ()
kwargs is: {'tox': 'tux'}
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