[wrCisco]

I wanted to improve and generalize the first-words-then-everywhere wrapping of text for the plain text of QLabels, so I'm partially rewriting the code of my WrappingCheckBox widget to use QTextBoundaryFinder to split words and graphemes in a text, and I stumbled upon a small incompatibility between pyqt5 and pyside6: while in pyside6 you can iterate over qt enums, in pyqt5 you can't. Do you know if there is a more clever way to do what I'm doing with 'boundary_reasons' in the following function (an optional parameter which, if None, is assigned all the enumeration's values combined)?

from functools import reduce
from plugin_utils import QtCore

def tokenize_text(
            text: str,
            boundary_type: QtCore.QTextBoundaryFinder.BoundaryType,
            boundary_reasons: QtCore.QTextBoundaryFinder.BoundaryReason | None = None) -> list[str]:
        """
        Divide text in a list of tokens based on boundary_type.
        boundary types: Grapheme, Word, Line, Sentence
        """
        if boundary_reasons is None:
            try:
                # BreakOpportunity doesn't come up while iterating over BoundaryReason flags
                # (PySide 6.9), so I use it as the initializer of the reduce function
                boundary_reasons = reduce(
                    lambda x, y: x | y,
                    QtCore.QTextBoundaryFinder.BoundaryReason,
                    QtCore.QTextBoundaryFinder.BoundaryReason.BreakOpportunity
                )
            except TypeError:
                # PyQt5 doesn't allow iterations over Qt enums
                boundary_reasons = (
                    QtCore.QTextBoundaryFinder.BoundaryReason.StartOfItem
                    | QtCore.QTextBoundaryFinder.BoundaryReason.EndOfItem
                    | QtCore.QTextBoundaryFinder.BoundaryReason.MandatoryBreak
                    | QtCore.QTextBoundaryFinder.BoundaryReason.SoftHyphen
                    | QtCore.QTextBoundaryFinder.BoundaryReason.BreakOpportunity
                )
        tbf = QtCore.QTextBoundaryFinder(boundary_type, text)
        tokens = []
        pos = prev = tbf.position()
        while True:
            pos = tbf.toNextBoundary()
            if pos == -1:
                break
            if pos != prev and boundary_reasons & tbf.boundaryReasons():
                token = text[prev:pos]
                tokens.append(text[prev:pos])
                prev = pos
        return tokens

I found a couple of Stack Overflow answers that address the issue, but the solution proposed seems way too complex for my limited use case (https://stackoverflow.com/questions/...representation, https://stackoverflow.com/questions/...-typedef-for-q).