__init__.py 文件源码

def call_api(self):
        url = 'http://prj2epsg.org/search.json?'
        params = {
                'mode': 'wkt',
                'terms': self.prj
                }
        try:
            req = request.urlopen(url+urlencode(params))
        except request.HTTPError as http_exc:
            logger.warning("""Failed to retrieve data from prj2epsg.org API:\n
                            Status: %s \n
                            Message: %s""" % (http_exc.code, http_exc.msg))
        else:
            raw_resp = req.read()
            try:
                resp = json.loads(raw_resp.decode('utf-8'))
            except json.JSONDecodeError:
                logger.warning('API call succeeded but response\
                        is not JSON: %s' % raw_resp)
            self.process_api_result(resp)