Key Concepts

Review core concepts you need to learn to master this subject


# Comment on a single line user = "JDoe" # Comment after code

A comment is a piece of text within a program that is not executed. It can be used to provide additional information to aid in understanding the code.

The # character is used to start a comment and it continues until the end of the line.

Learn Python: Hello World
Lesson 1 of 1

What you'll create

Portfolio projects that showcase your new skills

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How you'll master it

Stress-test your knowledge with quizzes that help commit syntax to memory

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