def _get_env(self, env_var):
        """Helper to read an environment variable
        """
        value = os.environ.get(env_var)
        if not value:
            raise ValueError('Missing environment variable:%s' % env_var)
        return value
def _get_env(self, env_var):
        
        value = os.environ.get(env_var)
        if not value:
            raise ValueError('Missing environment variable:%s' % env_var)
        return value
def _get_env ( self , env_var ) : value = os . environ . get ( env_var ) if not value : raise ValueError ( 'Missing environment variable:%s' % env_var ) return value
Helper to read an environment variable
Helper to read an environment variable