Comment

As explained in A Pythonic Adventure: From Python basics to a working web app

A code comment is explanatory text in source code that is ignored during execution and documents intent or behavior.

How A Pythonic Adventure: From Python basics to a working web app covers it

How deep it goes

Shows docstrings and inline comments in a working function, without developing broader commenting principles.

Examples

Demonstrates comments in the Python read_menu function, including documentation, file-handling notes, and exception explanations.

What it assumes

Assumes familiarity with a Python function, file reading, list comprehensions, and exceptions.

What you can do after

Apply it by adding docstrings and inline comments that explain a Python function's purpose, operations, and error handling.

How it connects

Connects comments with code review, docstrings, list comprehensions, file handling, and exception handling.

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Also explained in

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  Software Testing with Generative AIA code comment is an explanatory annotation embedded in source code that is generally ignored during program execution.
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  The Quick Python Book, Fourth EditionA comment is source text ignored during program execution that explains or annotates code for human readers.
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  Web Design Playground, Second EditionSource markup that records explanatory or organizational text without displaying it as page content.
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  Modern CA comment is source text in a C program that the compiler ignores as non-executable documentation.
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  Learn Rust in a Month of LunchesA comment is source text that the compiler ignores as program instructions and that can contain explanatory or documentation text.
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  Modern C, Third EditionA comment is source text that the C compiler ignores and that can document a program.
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  Simple Object-Oriented Design: Create clean, maintainable applicationsA code comment is explanatory natural-language text embedded in source code to convey rationale, behavior, caveats, or other information not expressed by the code itself.
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  Learn SQL in a Month of LunchesAn SQL comment is text in an SQL statement or script that is ignored during execution and can document intent or context.
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  Learn AI-Assisted Python Programming, Second EditionA source-code annotation that is ignored during program execution and can provide human-readable information or instructions.

Compare how 10 books explain comment →

Related concepts

• JSONcontrasts with · JSON is a standardized, language-independent text format for representing structured data using objects, arrays, strings, numbers, Boolean values, and null.
• docstringcontrasts with · A docstring is a string literal associated with a program element that documents its purpose, interface, behavior, or usage for people and tools.
• documentationpart of · Documentation is recorded explanatory, instructional, or reference information that describes a subject, system, or process to support its understanding, use, or maintenance.
• comment-based helpincludes · Comment-based help is PowerShell documentation embedded in specially formatted comments associated with a script, function, or command.

This explainer was generated by Manning's knowledge graph from the text of A Pythonic Adventure: From Python basics to a working web app. The section links point to the parts of the book it draws on.