policy: add helper to import cext/pure module
These functions are sysstr API since __import__() and getattr() hate byte
strings on Python 3.
There's a minor BC, which is ImportError will be raised if invalid
HGMODULEPOLICY is specified. I think this is more desired behavior.
We're planning to add strict checking for C API compatibility. This patch
includes the stub for it.
@echo off
rem Double-click this file to (re)build Mercurial for Windows in place.
rem Useful for testing and development.
cd ..\..
del /Q mercurial\*.pyd
del /Q mercurial\*.pyc
rmdir /Q /S mercurial\locale
python setup.py build_py -c -d . build_ext -i build_mo
pause