[issue1283] PyBytes (buffer) .extend method needs to accept any iterable of ints

[Alexandre Vassalotti]

Alexandre Vassalotti added the comment:

Made 2 minor enhancements to the patch:
   + Added the proper type-cast to PyMem_Realloc call.
   + Changed (len >> 1) to (len >> 1) + 1, just to be sure that the
buffer  doesn't overflow if __length_hint__ return 0 or 1 erroneously.

Added file: http://bugs.python.org/file8848/byte_extend-2.patch

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