Julius Hietala hietalajulius
Nipsuli
/ two_pass_shuffle.py
Last active
November 10, 2021 19:06
Two pass shuffle implementation for algorithm described: in https://blog.janestreet.com/how-to-shuffle-a-big-dataset/
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| import contextlib | |
| import tempfile | |
| import random | |
| def two_pass_shuffle(input_files, output_files, temp_file_count, header_lines=0): | |
| """ | |
| two_pass_shuffle | |
| Suffle data larger that can be shuffled in memory. | |
| Implementation based on: |