Python: Learn Python In A DAY! - The Ultimate Crash Course to Learning the Basics of Python In No Time (Python, Python Course, Python Development, Python Books, Python for Beginners) by Acodemy

Author:Acodemy [Unknown]
Language: eng
Format: epub
Published: 2015-06-14T00:00:00+00:00

Storing the function somewhere will allow you to reuse it as many time as you will need it.

Functions with default parameters

It might happen that you will need to call certain functions over and over again in your programs. For functions with many parameters, this would require you to type in many arguments which is something that soon may become quite tiresome. In such scenario, it may often happens that you may have to enter the same arguments over and over again for the same function.

For example, you might want to generate email addresses for a wide range of names and surnames, but you only want to generate email addresses that have gmail.com as their base. Python has a technique that allows you to define a function with default parameters, so that you don’t have to explicitly declare them when you call an instance of the function. Here is the function we defined in the previous chapter, but with default parameters: def email_generator (name, surname, email="gmail", extension=".com"):

address = "{0}{1}@{2}{3}".format(name,surname,email,extension) return address

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