Do not bother unpacking single bytes

Author: oschwald

maxminddb/decoder.py

@@ -130,7 +130,7 @@ def decode(self, offset):
         offset -- the location of the data structure to decode
         """
         new_offset = offset + 1
-        (ctrl_byte, ) = struct.unpack(b'!B', self._buffer[offset:new_offset])
+        ctrl_byte = int_from_byte(self._buffer[offset])
         type_num = ctrl_byte >> 5
         # Extended type
         if not type_num:
@@ -147,7 +147,7 @@ def decode(self, offset):
         return decoder(self, size, new_offset)
 
     def _read_extended(self, offset):
-        (next_byte, ) = struct.unpack(b'!B', self._buffer[offset:offset + 1])
+        next_byte = int_from_byte(self._buffer[offset])
         type_num = next_byte + 7
         if type_num < 7:
             raise InvalidDatabaseError(