cython

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# Python version constants
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#
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# It's better to evaluate these at runtime (i.e. C compile time) using
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#
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#      if PY_MAJOR_VERSION >= 3:
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#           do_stuff_in_Py3_0_and_later()
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#      if PY_VERSION_HEX >= 0x02070000:
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#           do_stuff_in_Py2_7_and_later()
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#
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# than using the IF/DEF statements, which are evaluated at Cython
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# compile time.  This will keep your C code portable.
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cdef extern from *:
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    # the complete version, e.g. 0x010502B2 == 1.5.2b2
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    int PY_VERSION_HEX
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    # the individual sections as plain numbers
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    int PY_MAJOR_VERSION
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    int PY_MINOR_VERSION
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    int PY_MICRO_VERSION
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    int PY_RELEASE_LEVEL
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    int PY_RELEASE_SERIAL
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    # Note: PY_RELEASE_LEVEL is one of
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    #    0xA (alpha)
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    #    0xB (beta)
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    #    0xC (release candidate)
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    #    0xF (final)
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    char PY_VERSION[]
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    char PY_PATCHLEVEL_REVISION[]
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