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Functions in Python
schedule Aug 12, 2023
Last updated local_offer
Tags Python
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We can write our own functions in Python to perform things not supported by built-in functions alone.
The below piece of code represents the basic structure of a function:
def greeting(name, time_of_day): # header """Return a greeting to someone based on the time of day. >>> greeting('Bob', 'evening') "Good evening Bob"""" return ("Good " + time_of_day + " " + name)
#Call the functiongreeting("Sara", 'morning')
'Good morning Sara'
The docstring in triple quotes directly after the header provides a description of what the function does. This is displayed when we call help(~) on the function.
Default arguments
We can provide default values for arguments when defining a function:
def greeting(name="Tony", time_of_day="day"): # header """Return a greeting to someone based on the time of day. >>> greeting('Bob', 'evening') "Good evening Bob"""" return ("Good " + time_of_day + " " + name)
#Call the functiongreeting()
'Good day Tony'
Now we can call greeting() without passing any arguments and the default values will be used.
Published by Arthur Yanagisawa
Edited by 0 others
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