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We are usingpyparsing to parse physical equation and parameter definitions. Potentially we are using it wrong, but the following (simplified) version works in 3.2.3, but fails in 3.2.4:
importstringfrompyparsingimportWord,Group,SuppressIDENTIFIER=Word(string.ascii_letters+"_",string.ascii_letters+string.digits+"_").setResultsName("identifier")# very broad definition here, whether this corresponds to a valid unit string will be checked laterUNIT=Word(string.ascii_letters+string.digits+"*/.- ").setResultsName("unit")PARAMETER_EQ=Group(IDENTIFIER+Suppress(":")+UNIT)print(repr(PARAMETER_EQ.parse_string("speed : meter/second")))
In 3.2.3, this prints:
ParseResults([ParseResults(['speed', 'meter/second'], {'identifier': 'speed', 'unit': 'meter/second'})], {})whereas in 3.2.4, it fails with:
Traceback (most recent call last): File"/home/mstimberg/scratch/pyparsing_issue.py", line15, in<module>print(repr(PARAMETER_EQ.parse_string("speed : meter/second")))~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^ File"/home/mstimberg/.cache/uv/archive-v0/b2gwMgK-avsJGeZiOPy1f/lib/python3.13/site-packages/pyparsing/core.py", line1306, inparse_string loc, tokens=self._parse(instring,0)~~~~~~~~~~~^^^^^^^^^^^^^ File"/home/mstimberg/.cache/uv/archive-v0/b2gwMgK-avsJGeZiOPy1f/lib/python3.13/site-packages/pyparsing/core.py", line933, in_parseNoCache loc, tokens=self.parseImpl(instring, pre_loc, do_actions)~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File"/home/mstimberg/.cache/uv/archive-v0/b2gwMgK-avsJGeZiOPy1f/lib/python3.13/site-packages/pyparsing/core.py", line5034, inparseImplreturnself.expr._parse(instring, loc, do_actions,callPreParse=False)~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File"/home/mstimberg/.cache/uv/archive-v0/b2gwMgK-avsJGeZiOPy1f/lib/python3.13/site-packages/pyparsing/core.py", line933, in_parseNoCache loc, tokens=self.parseImpl(instring, pre_loc, do_actions)~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File"/home/mstimberg/.cache/uv/archive-v0/b2gwMgK-avsJGeZiOPy1f/lib/python3.13/site-packages/pyparsing/core.py", line4513, inparseImpl loc, exprtokens= e._parse(instring, loc, do_actions)~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^ File"/home/mstimberg/.cache/uv/archive-v0/b2gwMgK-avsJGeZiOPy1f/lib/python3.13/site-packages/pyparsing/core.py", line937, in_parseNoCache loc, tokens=self.parseImpl(instring, pre_loc, do_actions)~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File"/home/mstimberg/.cache/uv/archive-v0/b2gwMgK-avsJGeZiOPy1f/lib/python3.13/site-packages/pyparsing/core.py", line3290, inparseImpl_regex result=self.re_match(instring, loc)^^^^^^^^^^^^^AttributeError:'Word' object has no attribute 're_match'
From reading the changelog, it might be related to the fix for#612?
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