Python uses PEP 440 versioning, which isn’t semver. Semver is de facto common, however, and can be expressed as a subset of PEP 440. I’m not sure what you mean

Python uses PEP 440 versioning, which isn’t semver. Semver is de facto common, however, and can be expressed as a subset of PEP 440. I’m not sure what you mean by “change in dependencies”: every release has zero or more distributions (“files”), and each distribution in a release can specify its own dependencies. For example, a macOS-specific wheel might depend on something that Linux-specific wheels don’t need or vice versa. > but I also hope you understand that it violates the principle of least surprise. I think it’s fair to say that virtually everything about Python packaging violates POLA :-)