Yeb Havinga commited on
Commit
115b07a
1 Parent(s): 8e6113c

In streaming mode shuffle train files

Browse files
Files changed (2) hide show
  1. mc4_nl_cleaned.py +4 -0
  2. test_mc4_nl_cleaned.py +2 -2
mc4_nl_cleaned.py CHANGED
@@ -19,6 +19,7 @@ import json
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  import gzip
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  import textwrap
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  import datasets
 
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  from itertools import zip_longest
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  logger = datasets.logging.get_logger(__name__)
@@ -151,6 +152,9 @@ class Mc4(datasets.GeneratorBasedBuilder):
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  n_shards=8 if split == "validation" else 1024,
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  )
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  )
 
 
 
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  train_downloaded_files = dl_manager.download(data_urls["train"])
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  validation_downloaded_files = dl_manager.download(data_urls["validation"])
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  return [
 
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  import gzip
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  import textwrap
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  import datasets
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+ import random
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  from itertools import zip_longest
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  logger = datasets.logging.get_logger(__name__)
 
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  n_shards=8 if split == "validation" else 1024,
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  )
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  )
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+ # Shuffle data in streaming mode, so restarts will not always start with the same data
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+ if dl_manager.is_streaming:
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+ random.shuffle(data_urls["train"])
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  train_downloaded_files = dl_manager.download(data_urls["train"])
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  validation_downloaded_files = dl_manager.download(data_urls["validation"])
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  return [
test_mc4_nl_cleaned.py CHANGED
@@ -13,9 +13,9 @@ def test_streaming_dataset():
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  i = iter(train_ds)
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  e = next(i)
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- assert len(e["text"]) == 1264
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  e = next(i)
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- assert len(e["text"]) == 1091
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  assert sum(1 for _ in iter(val_ds)) == 16189
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  i = iter(train_ds)
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  e = next(i)
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+ assert len(e["text"]) != 1264
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  e = next(i)
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+ assert len(e["text"]) != 1091
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  assert sum(1 for _ in iter(val_ds)) == 16189
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