PyCTR

Python library to interact with Nintendo 3DS files.

The API is not yet stable. If you decide to use this, you should stick to a specific version on pypi, or store a copy locally, until it is stable.

Documentation is being updated over time and is published on Read the Docs. Most classes and functions have docstrings.

Support is provided on GitHub Discussions or Discord (info, invite link).

Supported types

Application metadata and containers
- CDN contents ("tmd" next to other contents)
- CTR Cart Image (".3ds", ".cci")
- CTR Importable Archive (".cia")
- NCCH (".cxi", ".cfa", ".ncch", ".app")
- Title Metadata ("*.tmd")
- SMDH icon ("*.smdh", "icon.bin")
Application contents
- Executable Filesystem (".exefs", "exefs.bin")
- Read-only Filesystem (".romfs", "romfs.bin")
User files
- NAND ("nand.bin")
- SD card filesystem ("Nintendo 3DS" directory)
- DISA (save) and DIFF (extdata) containers
  - NOT the Inner Fat yet! This is for the wrappers around them.

License

pyctr is under the MIT license.