[Numpy-discussion] object dtype questions
Sun Sep 6 16:12:31 CDT 2009
Alan G Isaac skrev:
Yes, but here you still have to look up the name 'f' from locals in each
iteration. map is written in C, once it has as PyObject* to the callable
it does not need to look up the name anymore. The dictionary lookup(s)
to get the callable is done just once. map is also more thread-safe.
During the iteration another thread could rebind the name of the
callable, but map is impervious to that.
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