[C++-sig] Automatic PyUnicode to 'const char*'

Hi all, I'm using boost.python to wrap the WTL (Windows Template Libaray), using VC 7.1 and porting some old code previously use win32ui.pyd. Basically it is easy to do, though gccxml failed to parse the ATL/WTL code so I can not use Pyste. But there is a trouble, does anybody know how to automaticly convert PyUnicode to 'const char *'? Without this, I have to change lot of code lines to explictly use str() function. Lijun Qin http://www.solidshare.com