Issue #25913: Leading <~ is optional now in base64.a85decode() with adobe=True.
Patch by Swati Jaiswal.
diff --git a/Lib/base64.py b/Lib/base64.py
index e2c597b..adaec1d 100755
--- a/Lib/base64.py
+++ b/Lib/base64.py
@@ -367,10 +367,15 @@
"""
b = _bytes_from_decode_data(b)
if adobe:
- if not (b.startswith(_A85START) and b.endswith(_A85END)):
- raise ValueError("Ascii85 encoded byte sequences must be bracketed "
- "by {!r} and {!r}".format(_A85START, _A85END))
- b = b[2:-2] # Strip off start/end markers
+ if not b.endswith(_A85END):
+ raise ValueError(
+ "Ascii85 encoded byte sequences must end "
+ "with {!r}".format(_A85END)
+ )
+ if b.startswith(_A85START):
+ b = b[2:-2] # Strip off start/end markers
+ else:
+ b = b[:-2]
#
# We have to go through this stepwise, so as to ignore spaces and handle
# special short sequences