Python 3.13 support for Snyk Open Source SCM scans

From April 23rd 2025, Snyk Open Source will support SCM integration scanning of pip and pipenv applications using Python 3.13, as follows:

• pip: Snyk will use Python 3.13 for SCM scans when specified in Organisation settings, or .snyk files.

• pipenv: Snyk will scan using Python 3.13 if specified in the projects Pipfile.

In both cases, the updated results will be available after the projects next retest.

⚠️ Note that for relevant projects, the numbers of dependencies and issues may increase.

FAQ

Q: How do I specify Python version for pip projects?

This can be defined in Organization settings, or on a per-repo basis using .snyk files. See documentation.

Q: How do I specify Python version for pipenv projects?

Snyk will use the Python version specified in the projects Pipfile

Before this release, a Pipfile specifying Python 3.13 (or any other unsupported version) would be scanned with a default version of 3.10 instead.

Q: How does Python version affect accuracy of Snyk scans?

Some Python packages depend on specific Python versions, and developers must build these apps in an environment with a compatible Python version for them to be installed correctly.

Similarly, to provide the most accurate results, Snyk must be configured to use the same Python version used by your application.