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Fix WikiText-103 download (dead metamind S3 URL -> working mirror + UA) #11

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Fix WikiText-103 download (dead metamind S3 URL -> working mirror + UA) #11

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12 changes: 8 additions & 4 deletions src/data/wikitext.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,10 +11,14 @@ def get_wikitext_data(datasets_base_dir):
if not os.path.exists(WIKITEXT_DATA_PATH):
os.makedirs(WIKITEXT_DATA_PATH, exist_ok=True)
print("downloading data and tokenizing (1-2 min)")
raw_data_source = "https://s3.amazonaws.com/research.metamind.io/wikitext/wikitext-103-raw-v1.zip"
urllib.request.urlretrieve(
raw_data_source, os.path.join(WIKITEXT_DATA_PATH, "data.zip")
)
# original metamind S3 url is dead (301); Smerity mirror serves the same zip but
# blocks the default Python User-Agent (403), so send a browser UA.
raw_data_source = "https://wikitext.smerity.com/wikitext-103-raw-v1.zip"
_req = urllib.request.Request(raw_data_source, headers={"User-Agent": "Mozilla/5.0"})
with urllib.request.urlopen(_req) as _resp, open(
os.path.join(WIKITEXT_DATA_PATH, "data.zip"), "wb"
) as _f:
_f.write(_resp.read())

with zipfile.ZipFile(
os.path.join(WIKITEXT_DATA_PATH, "data.zip"), "r"
Expand Down