Tongues

Write your library once in Python. Get native, idiomatic code in every language.

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For What

Leaf dependencies. The code everyone imports but that imports nothing:

• Parsers and lexers
• Codecs (Base64, MessagePack, Protobuf wire format)
• Validators (JSON Schema, semver, email)
• Text algorithms (diff, Levenshtein, glob matching)
• Data structures (tries, bloom filters, ropes)
• Hashing and checksums
• State machines and interpreters

If it needs syscalls, networking, or threads—-Tongues isn't your tool. If you're content with stdin, stdout, stderr, argv, env vars, and main(), then Tongues is a perfect fit.

Status

The transpiler currently supports these target languages:

Language	Min Version	Status
Java	Temurin 21	Alpha
Javascript	Node.js 21	Alpha
Perl	Perl 5.38	Alpha
Python	CPython 3.12	Alpha
Ruby	Ruby 3.2	Alpha
C	GCC 13
C#	.NET 8
Dart	Dart 3.2
Go	Go 1.21
Lua	Lua 5.4
PHP	PHP 8.3
Rust	Rust 1.75
Swift	Swift 6.0
Typescript	tsc 5.3
Zig	Zig 0.14

We target language versions from ~3 years ago. New enough for modern idioms, old enough to be everywhere—LTS distros, corporate environments, CI images. No bleeding-edge features, no legacy baggage.

License

MIT