Attaching updated patch that clarifies the accepted non-numeric types as Serhiy suggested on Rietveld.

I also made a few other changes like linking to "integer literal" and updating the "base-radix" reference.  As I began to suspect, the latter was left over from a prior version of the docs (when the keyword argument was named "radix"):

http://hg.python.org/cpython/file/18db8c4d4487/Doc/library/functions.rst#l559

I will commit later today unless there are further suggestions.