Generate blocks of file's contents in reverse order.
(fin, block_size=4096)
| 257 | |
| 258 | |
| 259 | def reversed_blocks(fin, block_size=4096): |
| 260 | """Generate blocks of file's contents in reverse order.""" |
| 261 | fin.seek(0, os.SEEK_END) |
| 262 | here = fin.tell() |
| 263 | while 0 < here: |
| 264 | delta = min(block_size, here) |
| 265 | here -= delta |
| 266 | fin.seek(here, os.SEEK_SET) |
| 267 | yield fin.read(delta) |