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On Wed, 10 May 2017 20:53:31 +0200 |
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Michał Górny <mgorny@g.o> wrote: |
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> Allow two special values in the implementation patterns for |
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> _python_impl_matches(): -2 to indicate all Python 2-compatible |
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> implementations, and -3 to indicate all Python 3-compatible |
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> implementations. Both of those values are implemented using |
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> the python_is_python3 function. |
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Seems mostly reasonable, though the syntax is somewhat confusing at |
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first glance. There are many places where we use "-value" to negate, so |
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this looks like it means "not python 2" rather than "all python 2". |
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Perhaps something like '+2' would make it easier to read. |
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> This is mostly meant to make it easier and more fool-proof to write |
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> dependencies on backports to Python 2 which in most cases apply to |
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> PyPy2 as well. |
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