airflow/hooks/S3_hook.py
def read_key(self, key, bucket_name=None):
        """
        Reads a key from S3

        :param key: S3 key that will point to the file
        :type key: str
        :param bucket_name: Name of the bucket in which the file is stored
        :type bucket_name: str
        """

        obj = self.get_key(key, bucket_name)
        return obj.get()['Body'].read().decode('utf-8')
def read_key(self, key, bucket_name=None):
        obj = self.get_key(key, bucket_name)
        return obj.get()['Body'].read().decode('utf-8')
def read_key ( self , key , bucket_name = None ) : obj = self . get_key ( key , bucket_name ) return obj . get ( ) [ 'Body' ] . read ( ) . decode ( 'utf-8' )
Reads a key from S3

        :param key: S3 key that will point to the file
        :type key: str
        :param bucket_name: Name of the bucket in which the file is stored
        :type bucket_name: str
Reads a key from S3