__init__.py 文件源码

def _pip_main(self, *args):
        """Run pip.main with the specified ``args``
        """
        if self.quiet:
            import logging
            pip_log = logging.getLogger("pip")
            _level = pip_log.level
            pip_log.setLevel(logging.CRITICAL)
        elif self._should_color():
            self._sys.stdout.write("\x1b[36m")

        try:
            self._pip.main(list(args))
        finally:
            if self.quiet:
                pip_log.setLevel(_level)
            elif self._should_color():
                self._sys.stdout.write("\x1b[0m")
                self._sys.stdout.flush()