`# pragma: no cover` but specific to particular Python version

Originally reported by Tim Tisdall (Bitbucket: tisdall, GitHub: tisdall)

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This is related to: https://github.com/Pylons/colander/issues/226

        try:
            functools.update_wrapper(self, wrapped)
        except AttributeError: #non-function
            self.__doc__ = getattr(wrapped, '__doc__', None)

There seems to be cases where you need to write code to cover cases in certain versions of Python that are then inaccessible in other versions. In the above example there’s code to handle an exception that occurs in py2, but never happens in py3 (in this situation). It’d be nice to selectively exclude coverage for only certain versions of Python but include it in the versions it’s necessary for.

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• Bitbucket: https://bitbucket.org/ned/coveragepy/issue/370

[nedbat]

There’s a new coverage plugin that can do these sorts of conditionals: https://sobolevn.me/2020/02/conditional-coverage /cc @warsaw @tisdall

[nedbat]

You already have all the control you need to create a system like this yourself. The pragma is simply the default for the [report]exclude_lines option in your .coveragerc file. If you like, you can create two config files, one for py2 and another for py3, and specify different pragma syntaxes in each.