def _get_metadata()

in src/setup.py [0:0]

• 13 lines of code
• 5 McCabe index (conditional complexity)

    def _get_metadata(self, request):
        """
        This method retrieves values from metadata service.

        request -- The request part after the metadata service address, for example if full request is:
                   'http://169.254.169.254/latest/meta-data/placement/availability-zone/'
                   then the request part is 'latest/meta-data/placement/availability-zone/'.
        """
        from requests import Session, codes
        from requests.adapters import HTTPAdapter
        try:
            result = self._v2_call(request)
            # fallback to v1
            if not (result and result.status_code is codes.ok):
                print("Fallback to IMDSV1")
                result = self._v1_call(request)

        except Exception as e:
            raise MetadataRequestException("Cannot access metadata service. Cause: " + str(e))

        if result.status_code is not codes.ok:
            raise MetadataRequestException("Cannot retrieve configuration from metadata service. Status code: " + str(result.status_code))
        return str(result.text)