File: six.py

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python-gevent 1.0.1-2
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import sys
from gevent.hub import PY3

if PY3:
    advance_iterator = next
else:
    def advance_iterator(it):
        return it.next()

if PY3:
    import builtins
    exec_ = getattr(builtins, "exec")

    def reraise(tp, value, tb=None):
        if value.__traceback__ is not tb:
            raise value.with_traceback(tb)
        raise value

    print_ = getattr(builtins, "print")
    del builtins

else:
    def exec_(code, globs=None, locs=None):
        """Execute code in a namespace."""
        if globs is None:
            frame = sys._getframe(1)
            globs = frame.f_globals
            if locs is None:
                locs = frame.f_locals
            del frame
        elif locs is None:
            locs = globs
        exec("""exec code in globs, locs""")