Editing Python (programming language) (section)

===Function syntax===
[[Function (computer programming)|Functions]] are created in Python by using the <code>def</code> keyword. A function is defined similarly to how it is called, by first providing the function name and then the required parameters. Here is an example of a function that prints its inputs:
<syntaxhighlight lang="python3">
def printer(input1, input2="already there"):
    print(input1)
    print(input2)
    
printer("hello")
    
# Example output:
# hello
# already there
</syntaxhighlight>To assign a default value to a function parameter in case no actual value is provided at run time, variable-definition syntax can be used inside the function header.