prep.py 文件源码

def download_vcpython27(self):
        """
        Download vcpython27 since some Windows 7 boxes have it and some don't.
        :return: None
        """

        self._prepare_for_download()

        logger.info('Beginning download of vcpython27... this may take a few minutes...')

        with open(os.path.join(DOWNLOADS_DIR, 'vcpython27.msi'), 'wb') as f:

            if self.PROXY is not None:
                opener = urllib2.build_opener(
                    urllib2.HTTPHandler(),
                    urllib2.HTTPSHandler(),
                    urllib2.ProxyHandler({'http': self.PROXY, 'https': self.PROXY})
                )
                urllib2.install_opener(opener)

            f.write(urllib2.urlopen(self.VCPYTHON27_DOWNLOAD_URL, timeout=self.DOWNLOAD_TIMEOUT).read())

        logger.debug('Download of vcpython27 complete')