try fix again

TypeError: unsupported operand type(s) for &: 'float' and 'int'

Author: siddontang

pymysqlreplication/bitmap.py

@@ -47,7 +47,7 @@ def _createLastWordMask(self):
  used = 1 + (self._nbits - 1) & 0x7
  mask = (~(1 << used) - 1) & 255
 
- l = ((self._nbits + 7) / 8) & 3
+ l = int((self._nbits + 7) / 8) & 3
  if l == 1:
  self._lastWordMask = ~0 & 0xFFFFFFFF
  b = bytearray(struct.pack("<I", self._lastWordMask))