Master Python Dictionaries | Beginner to Advanced Tutorial with Examples
Python dictionaries tutorial: learn how to build, edit, and loop through dictionaries step-by-step with real examples. In this video, you’ll master Python dictionaries (data dictionaries) as key-value pairs and see exactly how to create them multiple ways in a Jupyter Notebook.
You’ll start with a clear definition, then create a basic data dictionary using characters like Conan the Barbarian, Red Sonja, and a swordsman example. From there, you’ll build dictionaries from an empty dictionary, use the dict() constructor, convert a list of tuples into a dictionary, and create a dictionary from two lists using zip(). You’ll also build a nested dictionary (dictionary inside a dictionary), merge dictionaries, and learn how to access dictionary items safely using get() to avoid errors.
Finally, you’ll add and update fields, remove items using pop, popitem, del, and clear, and loop through keys, values, and key-value pairs—including a must-watch nested looping example that prints everything cleanly, including weapons lists.
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⏱️ Chapters
00:00 Intro and Definition
00:25 Overview
02:36 Create a Basic Data Dictionary
05:17 Create a Data Dictionary from an Empty Dictionary
07:15 Create a Data Dictionary Using the 'dict()' Constructor
08:54 Create a Data Dictionary from a List of Tuples
10:22 Create a Data Dictionary from Two Lists Using zip()
11:13 Create a Nested Data Dictionary
14:16 Merge Dictionaries
15:47 Accessing Dictionary Items
17:22 Safe Access from Data Dictionary
19:33 Bring Back Keys from Data Dictionary
20:14 Bring Back Values from Data Dictionary
20:37 Bring Back Keys and Values from Data Dictionary
21:21 Add New Field to Data Dictionary
22:52 Update Value in Data Dictionary
23:52 Remove Items by Key from a Data Dictionary (pop)
25:00 Remove Last Inserted Item from a Data Dictionary (popitem)
26:03 Delete item by Key from a Data Dictionary
27:15 Empty Data Dictionary
28:02 Get Keys by Looping Through a Data Dictionary
28:41 Get Values by Looping Through a Data Dictionary
30:19 Get Keys and Values by Looping Through a Data Dictionary
31:44 Must Watch: Nested Looping Through a Data Dictionary
40:58 Closure
41:26 Like and Subscribe
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