ValueError: Cannot use capturing groups in re.Scanner on Python 3.15 #149
Description
When running the tests on Python 3.15 it breaks on:
tests/test_align.py:23:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
dissect/cstruct/cstruct.py:267: in load
TokenParser(self, **kwargs).parse(definition)
dissect/cstruct/parser.py:436: in parse
scanner = re.Scanner(self.TOK.tokens)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <re.Scanner object at 0x10b73ef90>
lexicon = [('#\\[(?P<values>[^\\]]+)\\](?=\\s*)', <function TokenCollection.add.<locals>.<lambda> at 0x10b9e33d0>), ('#define\\s...locals>.<lambda> at 0x10b9e3690>), ('#else\\s*', <function TokenCollection.add.<locals>.<lambda> at 0x10b9e3740>), ...]
flags = 0
def __init__(self, lexicon, flags=0):
from ._constants import BRANCH, SUBPATTERN
if isinstance(flags, RegexFlag):
flags = flags.value
self.lexicon = lexicon
# combine phrases into a compound pattern
p = []
s = _parser.State()
s.flags = flags
for phrase, action in lexicon:
sub_pattern = _parser.parse(phrase, flags)
if sub_pattern.state.groups != 1:
> raise ValueError("Cannot use capturing groups in re.Scanner")
E ValueError: Cannot use capturing groups in re.Scanner
../../.local/share/uv/python/cpython-3.15.0a2-macos-aarch64-none/lib/python3.15/re/__init__.py:402: ValueError
How to reproduce:
uv run -p 3.15 pytest -x
Exact Python version is: Python 3.15.0a2