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bpo-36216: Add check for characters in netloc that normalize to separators #12201

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Mar 7, 2019
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Load unicodedata module lazily
  • Loading branch information
zooba committed Mar 6, 2019
commit f1d2699f334ec91a8e8663cf189be451b59cdf99
2 changes: 1 addition & 1 deletion Lib/urllib/parse.py
Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,6 @@
import re
import sys
import collections
import unicodedata
import warnings

__all__ = ["urlparse", "urlunparse", "urljoin", "urldefrag",
Expand Down Expand Up @@ -402,6 +401,7 @@ def _checknetloc(netloc):
return
# looking for characters like \u2100 that expand to 'a/c'
# IDNA uses NFKC equivalence, so normalize for this check
import unicodedata
netloc2 = unicodedata.normalize('NFKC', netloc)
if netloc == netloc2:
return
Expand Down
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