use Py_ssize_t for file offset and length computations in iteration (closes #22526)

--HG--
branch : 2.7
this test will only work on 64-bit machines

--HG--
branch : 2.7
allow longs as indexes to group() (closes #22530)

--HG--
branch : 2.7
Issue #20079: Added locales supported in glibc 2.18 to locale alias table.

--HG--
branch : 2.7
Issue #20076: Added non derived UTF-8 aliases to locale aliases table.

--HG--
branch : 2.7
- Issue #18096: Fix library order returned by python-config.

--HG--
branch : 2.7
- Issue #17219: Add library build dir for Python extension cross-builds.

--HG--
branch : 2.7