Summary

It seems to me that there is a regression in Pyparsing 3.1.0 at least for the min argument of the Word class. I quickly tested the max one that seems to work but I didn't test all the combinations between min, max and exact.

Versions

• Python 3.11.3
• Pyaprsing 3.1.0

Repro code

>>> import pyparsing
>>> grammar = pyparsing.Word('abc', min=2)('key')
>>> grammar.parseString('a'.strip(), parseAll=True)
ParseResults(['a'], {'key': 'a'})

With version 3.0.9 that raises as expected:

pyparsing.exceptions.ParseException: Expected W:(abc){2,...}, found end of text  (at char 1), (line:1, col:2)