**Feature or enhancement** In Lib/filecmp.py, [line 160](https://github.com/python/cpython/blob/2d33d217aaf68fd8dc5d3eebc048baf82924c18a/Lib/filecmp.py#L160), we use a variable `ok` to check a condition. We use 0/1 to denote false/true here. A better coding style is using False/True. **Pitch** First, using True/False itself is a better coding style. Second, `if 1` is slower than `if True` (although the difference is small). **Previous discussion** N/A