/Python/What is * in argument list in python

What is * in argument list in python

# It means that parameter(s) that comes after * are keyword only parameters.
# Consider the following:
def test(delay, result=None, *, loop=None):
    print(delay, result, loop)

'''
In this case, test(1,2,2) will raise TypeError since it is
expecting at most two positional arguments, i.e. delay and result:

test(1,2,2)
TypeError: test() takes from 1 to 2 positional arguments but 3 were given
'''

# The third argument, or loop, can only be assigned if used as keyword:
test(1,2,loop=2)
# 1 2 2
# Works fine

Source: stackoverflow.com

Similar codes

0 vote159 views2 answers
Read excel spark
Python
0 vote156 views1 answer
Python when to use pandas series, numpy ndarrays or simply python dictionaries
Python
0 vote141 views1 answer
Python fft frequency spectrum
Python
0 vote179 views1 answer
Python catch output to terminal
Python
0 vote172 views1 answer
Django action when create model
Python
3 votes157 views1 answer
Python for data analysis
Python
30 votes179 views4 answers
How to round a number in python
Python
0 vote155 views1 answer
Fibonacci sequence in python 2.7
Python
2 votes131 views1 answer
Curses module python on windows
Python
0 vote175 views1 answer
Python num2words installation
Python