#3231: re.compile fails with some bytes patterns
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py
index fd41b6e..60b816e 100644
--- a/Lib/test/test_re.py
+++ b/Lib/test/test_re.py
@@ -732,23 +732,25 @@
else:
print('=== Failed incorrectly', t)
- # Try the match on a unicode string, and check that it
- # still succeeds.
+ # Try the match with both pattern and string converted to
+ # bytes, and check that it still succeeds.
try:
- result = obj.search(str(s, "latin-1"))
- if result is None:
- print('=== Fails on unicode match', t)
- except NameError:
- continue # 1.5.2
- except TypeError:
- continue # unicode test case
-
- # Try the match on a unicode pattern, and check that it
- # still succeeds.
- obj=re.compile(str(pattern, "latin-1"))
- result = obj.search(s)
- if result is None:
- print('=== Fails on unicode pattern match', t)
+ bpat = bytes(pattern, "ascii")
+ bs = bytes(s, "ascii")
+ except UnicodeEncodeError:
+ # skip non-ascii tests
+ pass
+ else:
+ try:
+ bpat = re.compile(bpat)
+ except Exception:
+ print('=== Fails on bytes pattern compile', t)
+ if verbose:
+ traceback.print_exc(file=sys.stdout)
+ else:
+ bytes_result = bpat.search(bs)
+ if bytes_result is None:
+ print('=== Fails on bytes pattern match', t)
# Try the match with the search area limited to the extent
# of the match and see if it still succeeds. \B will
@@ -771,10 +773,11 @@
# Try the match with LOCALE enabled, and check that it
# still succeeds.
- obj = re.compile(pattern, re.LOCALE)
- result = obj.search(s)
- if result is None:
- print('=== Fails on locale-sensitive match', t)
+ if '(?u)' not in pattern:
+ obj = re.compile(pattern, re.LOCALE)
+ result = obj.search(s)
+ if result is None:
+ print('=== Fails on locale-sensitive match', t)
# Try the match with UNICODE locale enabled, and check
# that it still succeeds.