[Python-3000] C API for ints and strings

[Marcin 'Qrczak' Kowalczyk]

Since PyString_Format is deprecated, is there a better way to convert a
Python3 int which doesn't fit in a C long to a hex representation in a
C string, than PyUnicode_Format and iterating over characters, casting
them from Unicode to bytes?

I actually need to convert it to mpz_t, which is best done via text
in a C string in a base which is a power of 2. Since PyUnicode_Format
for Python3 int creates a byte string first, it's quite silly to let
a byte string be converted to a Unicode string and then back.

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak at knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/