easy_install.py 文件源码

def byte_compile(self, to_compile):
        if sys.dont_write_bytecode:
            self.warn('byte-compiling is disabled, skipping.')
            return

        from distutils.util import byte_compile

        try:
            # try to make the byte compile messages quieter
            log.set_verbosity(self.verbose - 1)

            byte_compile(to_compile, optimize=0, force=1, dry_run=self.dry_run)
            if self.optimize:
                byte_compile(
                    to_compile, optimize=self.optimize, force=1,
                    dry_run=self.dry_run,
                )
        finally:
            log.set_verbosity(self.verbose)  # restore original verbosity