setup.py 文件源码

def run(self):
        """
        Copy, chmod each script listed in 'self.scripts'
        essentially this is the stripped
         distutils.command.build_scripts.copy_scripts()
        routine
        """
        from stat import ST_MODE
        from distutils.dep_util import newer
        from distutils import log

        self.mkpath(self.build_dir)
        outfiles = []
        for script in self.scripts:
            outfile = os.path.join(self.build_dir, os.path.basename(script))
            outfiles.append(outfile)

            if not self.force and not newer(script, outfile):
                log.debug("not copying %s (up-to-date)", script)
                continue

            log.info("copying and NOT adjusting %s -> %s", script,
                     self.build_dir)
            self.copy_file(script, outfile)

        if os.name == 'posix':
            for file in outfiles:
                if self.dry_run:
                    log.info("changing mode of %s", file)
                else:
                    oldmode = os.stat(file)[ST_MODE] & 0o7777
                    newmode = (oldmode | 0o555) & 0o7777
                    if newmode != oldmode:
                        log.info("changing mode of %s from %o to %o",
                                 file, oldmode, newmode)
                        os.chmod(file, newmode)