API tokens have vulnerabilities when handled as environment variables, allowing potential leakage or theft by co-maintainers, which makes manual renewal tedious.
Trusted Publishers mitigate security risks by using short-lived tokens, ensuring any token leakage causes minimal damage, as tokens become invalid quickly.
Incorporating Trusted Publishers involves linking your project settings in PyPI to GitLab, ensuring package uploads originate from authenticated CI pipelines.
By employing OpenID Connect, GitLab provides cryptographically signed tokens for CI pipelines, enhancing security during uploads to PyPI.
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