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-rw-r--r--Lib/base64.py3
1 files changed, 1 insertions, 2 deletions
diff --git a/Lib/base64.py b/Lib/base64.py
index 61be4fb..5d78cc0 100644
--- a/Lib/base64.py
+++ b/Lib/base64.py
@@ -4,7 +4,6 @@
# Modified 30-Dec-2003 by Barry Warsaw to add full RFC 3548 support
# Modified 22-May-2007 by Guido van Rossum to use bytes everywhere
-import re
import struct
import binascii
@@ -284,7 +283,7 @@ def b16decode(s, casefold=False):
s = _bytes_from_decode_data(s)
if casefold:
s = s.upper()
- if re.search(b'[^0-9A-F]', s):
+ if s.translate(None, delete=b'0123456789ABCDEF'):
raise binascii.Error('Non-base16 digit found')
return binascii.unhexlify(s)