Re: [Pyparsing] Memory issues with 2.0.6

[Will M. <wil...@gm...>]

Hi Paul,

Works for me. Thanks!

Will

On Wed, Nov 25, 2015 at 8:00 PM, Paul McGuire <pt...@au...> wrote:

> For those who reported having memory and Unicode issues, if possible,
> please
> download the latest committed version of pyparsing from the SourceForge SVN
> repo, and see if this resolves your issues.
>
> For the memory problem, it is probably not necessary to actually parse any
> text, simply invoke the streamline() method on your top-level grammar
> instance:
>
>     parser.streamline()
>
> For the Unicode problems, you should stop seeing the UnicodeEncodeError
> exceptions when creating your parser.
>
> Thanks for the feedback, everyone - if these changes work out, I'll follow
> up with an actual 2.0.7 release in the next day or so.
>
> -- Paul
>
>
>
> -----Original Message-----
> From: Martijn Vermaat [mailto:m.v...@lu...]
> Sent: Tuesday, November 24, 2015 10:32 AM
> To: pyp...@li...
> Subject: Re: [Pyparsing] Memory issues with 2.0.6
>
> Dear Paul and others,
>
> (Sorry for replying out of thread, I only just subscribed.)
>
> I can report the same problem with Pyparsing 2.0.6 on this grammar:
>
> https://github.com/mutalyzer/mutalyzer/blob/master/mutalyzer/grammar.py
>
> Memory usage continues to increase.
>
> best,
> Martijn
>
>
> > The problem is definitely in the "cosmetic-only" change to the
> > returned error message for MatchFirst and Or (which also manifests as
> > a Unicode error), and does not even require calling parseString, just
> > streamline().  Thanks for the test case Will, I can repro the problem
> > with it, but am trying to distill it down to a smaller case to add to
> > my unit tests, and to work with in fixing the bug.
> >
> > For now, impatient users can comment out line 2354 in pyparsing.py:
> >
> > self.errmsg = "Expected " + str(self)
>
>
>
>
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-- 
Will McGugan
http://www.willmcgugan.com