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Secret Recipes of the Python Ninja
book

Secret Recipes of the Python Ninja

by Cody Jackson
May 2018
Intermediate to advanced content levelIntermediate to advanced
380 pages
9h 37m
English
Packt Publishing
Content preview from Secret Recipes of the Python Ninja

How to do it...

  1. userlist_import.py shows how to use UserList as a superclass for a new list-like object. In this case, we are going to create a class that allows a list to be added by simply assigning values to it, rather than having to call the append() function:
    • First, in line 11, UserList must be imported from the collections module.
    • Next, the ExtendList class is created in line 12 as a subclass of UserList. This provides list functionality to any ExtendList instance. A setter method is created, accepting an integer and a value. If the integer provided equals the length of the list, then the value argument is appended to the list. ...
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Publisher Resources

ISBN: 9781788294874Supplemental Content