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Showing content from https://realpython.com/courses/legb-rule-python-scope/ below:

The LEGB Rule & Understanding Python Scope – Real Python

The concept of scope rules how variables and names are looked up in your code. It determines the visibility of a variable within the code. The scope of a name or variable depends on the place in your code where you create that variable. The Python scope concept is generally presented using a rule known as the LEGB rule.

The letters in the acronym LEGB stand for Local, Enclosing, Global, and Built-in scopes. This summarizes not only the Python scope levels but also the sequence of steps that Python follows when resolving names in a program.

In this video course, you’ll learn:

• What scopes are and how they work in Python
• Why it’s important to know about Python scope
• What the LEGB rule is and how Python uses it to resolve names
• How to modify the standard behavior of Python scope using global and nonlocal
• What scope-related tools Python offers and how you can use them

What’s Included:

• 9 Lessons
• Video Subtitles and Full Transcripts
• 2 Downloadable Resources
• Accompanying Text-Based Tutorial
• Q&A With Python Experts: Ask a Question
• Certificate of Completion

Downloadable Resources:

• Course Slides (.pdf)
• Sample Code (.zip)

Related Learning Paths:

• Functional Programming With Python

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