__init__.py 文件源码

def __init__(self, url, headers={}):
        self._url = url

        """
        Uses HTTP chunked transfer-encoding to stream a request body to a
        server. Unfortunately requests does not support hooking into this logic
        easily, so we use the lower-level httplib module.
        """
        self._closed = False

        parts = urlparse.urlparse(self._url)
        if parts.scheme == 'https':
            ssl_context = ssl.create_default_context()
            conn = httplib.HTTPSConnection(parts.netloc, context=ssl_context)
        else:
            conn = httplib.HTTPConnection(parts.netloc)

        try:
            url = parts.path
            if parts.query is not None:
                url = '%s?%s' % (url, parts.query)
            conn.putrequest('POST',
                            url, skip_accept_encoding=True)

            for header, value in headers.items():
                conn.putheader(header, value)

            conn.putheader('Transfer-Encoding', 'chunked')

            conn.endheaders()  # This actually flushes the headers to the server
        except Exception:
            sys.stderr.write('HTTP connection to "%s" failed.\n' % self._url)
            conn.close()
            raise

        self.conn = conn