pythonwise /

#!/usr/bin/env python

def enum(*names, **kw):
    Create an enum, names will be ordered starting from 1.

    If you specify `bitmask` keyword, then values will be power of two, useful
    when you're using a bitmask of flags.

    >>> flags = enum("A", "B", "C")
    >>> flags.A
    >>> flags.C
    >>> flags = enum("A", "B", "C", bitmask=True)
    >>> flags.A
    >>> flags.C
    class Enum: pass
    value = (lambda i: 1 << i) if kw.get('bitmask', 0) else (lambda i: i + 1)

    enum = Enum()
    for i, name in enumerate(names):
        setattr(enum, name, value(i))

    return enum

if __name__ == '__main__':
    from doctest import testmod
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