prose-languages 1.0.2

File extensions for prose languages.

> prose-languages

File extensions for prose languages.

It's just a JSON file, so you can use it in any environment. Sourced from GitHub's Linguist project (defines all 18 prose languages known to GitHub). Data is updated via script and released via new package version.

Installation

pip install prose-languages

Usage

import prose_languages

md_lang_data = prose_languages['Markdown']

print(md_lang_data['extensions']) # => ['.livemd', '.markdown', '.md', ...]

Note: Most type checkers will falsely warn prose_languages is not subscriptable because they are incapable of analyzing runtime behavior (where the module is replaced w/ a dictionary for cleaner, direct access). You can safely suppress such warnings using # type: ignore.

Examples

Get language from an extension:

def get_lang(file_ext):
    for lang, data in prose_languages.items():
        if file_ext in data['extensions']:
            return lang

print(get_lang('.gmi')) # => 'Gemini'

Get language from a file path:

def get_lang_from_path(filepath):
    from pathlib import Path
    file_ext = Path(filepath).suffix
    for lang, data in prose_languages.items():
        if file_ext in data['extensions']:
            return lang

print(get_lang_from_path('document.adoc')) # => 'AsciiDoc'
print(get_lang_from_path('README.md')) # => 'Markdown'
print(get_lang_from_path('index.mdx')) # => None (use markup-languages pkg)

MIT License

Copyright © 2026 Adam Lui

Related

</> markup-languages - File extensions for markup languages.
#! programming-languages - File extensions for programming languages.
{ } data-languages - File extensions for data languages.

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