Message 162893 - Python tracker (original) (raw)

Am 15.06.2012 14:21, schrieb Antoine Pitrou:

I like the fact that a C implementation can be audited much more easily. Who knows what kind of effects the Python implementation can trigger, if some optimizations get added in the future.

Secondly we can predict the function's timing on other implementations of Python. Jython or PyPy might have different settings for small int caching -- or non at all.

The point of supporting unicode would precisely be to avoid a unicode->bytes conversion when unicode strings are received.

A byte-wise comparison of the memory representation would work IFF both sides have the same type and unicode kind. Anything else could give away details of the content.

Either: PyBytes_CheckExact(a) && PyBytes_CheckExact(b)

or

PyUnicode_CheckExact(a) && PyUnicode_CheckExact(b) && PyUnicode_KIND(a) == PyUnicode_KIND(b)

I'm not sure about CheckExact, just being paranoid.