Python Programming For Kids: Complete Guide to Python Programming for Kids With Simple Projects & Exercises To Get Started by Craig Berg

Author:Craig Berg [Berg, Craig]
Language: eng
Format: azw3, epub
Published: 2020-06-02T16:00:00+00:00

Again, if we want to refer to an individual item in the tuple, we use the same indexing format as in Lists. For example, to select Saturday – which is at index 6– we enter the command:

REMEMBER: The indexing of items in both Lists and Tuples starts at 0. Simply put, the index is one number less than the position of your item – so the index of item number 100 is: 100 – 1 = 99

What are Dictionaries

Dictionaries, also called Maps or dicts, are just a collection of Lists or Tuples. They offer a lot of flexibility in how we store our values – we will talk about this later. Dictionaries consist of keys and a corresponding value. Do you remember the age problem we solved earlier? It was pretty messed up, right?

We can solve the same problem in a more organized way where we store our friends’ names, ages, and their games in one variable. In fact, there is nothing wrong with using nested lists like names_and_ages variable we created, but what if you had over 200 friends? You would need to calculate the index of the friend you want each time – which can be very tiresome.

Let us look at how we create dictionaries in Python – Pay attention to the syntax because it is very important. It may look scary though.

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.