> If you want to modify time.sleep(), you must be careful of the portability: Windows, Linux, but also Mac OS X, FreeBSD, Solaris, etc.

Oh, I totally agree. What I'm trying to do is to define another autoconf flag (HAVE_CLOCK_NANOSLEEP), that does a feature test and enable that flag, and just use that if available.

Now that's a good point that if we have clock_nanosleep() on another platform (non-Linux) and it does the wrong thing, then I might have to add further discrimination.

For now, one sticking point that I've stumbled across is that clock_nanosleep() requires "-lrt". Complicates the autoconf check a bit.