[Python-Dev] Re: Possible bug in `re` module in Python 3.11?
Thank you very much for your input, I've filled in the bug report:
https://github.com/python/cpython/issues/98740
Best regards,
Piotr
On Wed, Oct 26, 2022 at 6:55 PM Serhiy Storchaka
wrote:
> 26.10.22 11:17, Piotr Waszkiewicz пише:
> > Hi,
> > I would like to ask your guidance as I'm entirely sure whether the
> problem I'm experiencing should be posted in CPython's repo as a bug issue.
> > I've tried using newly released Python 3.11 interpreter in some of my
> projects and one of them failed to start with "RuntimeError: invalid SRE
> code" error.
> >
> > Looking into implementation of one of the dependencies I've found out
> that the issue has been found out by a maintainer and fixed (
> https://github.com/pydicom/pydicom/issues/1658).
> > It looks like this particular regexp caused the `re.compile()` method to
> raise:
> >
> > ```
> > re.compile(
> > r"(?P^([01][0-9]|2[0-3]))"
> > r"((?P([0-5][0-9]))?"
> > r"(?(5)(?P([0-5][0-9]|60))?)"
> > r"(?(7)(\.(?P([0-9]{1,6})?))?))$"
> > )
> > ```
> >
> > I've checked and this hasn't been an issue in all previous Python
> interpreter versions, starting from 3.6 (the oldest I've checked).
> > What's more the regex i correctly recognized and does not cause any
> issues in other regexp implementations, e.g. the online tool
> https://regex101.com/
> >
> > Could somebody help me decide whether this is indeed a bug?
>
> Yes, it is a bug, and I have found its cause. Please open an issue on
> the CPython bug tracker.
>
>
>
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[Python-Dev] Re: Possible bug in `re` module in Python 3.11?
26.10.22 11:17, Piotr Waszkiewicz пише:
Hi,
I would like to ask your guidance as I'm entirely sure whether the problem I'm
experiencing should be posted in CPython's repo as a bug issue.
I've tried using newly released Python 3.11 interpreter in some of my projects and one of
them failed to start with "RuntimeError: invalid SRE code" error.
Looking into implementation of one of the dependencies I've found out that the
issue has been found out by a maintainer and fixed
(https://github.com/pydicom/pydicom/issues/1658).
It looks like this particular regexp caused the `re.compile()` method to raise:
```
re.compile(
r"(?P^([01][0-9]|2[0-3]))"
r"((?P([0-5][0-9]))?"
r"(?(5)(?P([0-5][0-9]|60))?)"
r"(?(7)(\.(?P([0-9]{1,6})?))?))$"
)
```
I've checked and this hasn't been an issue in all previous Python interpreter
versions, starting from 3.6 (the oldest I've checked).
What's more the regex i correctly recognized and does not cause any issues in
other regexp implementations, e.g. the online tool https://regex101.com/
Could somebody help me decide whether this is indeed a bug?
Yes, it is a bug, and I have found its cause. Please open an issue on
the CPython bug tracker.
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[Python-Dev] Re: Possible bug in `re` module in Python 3.11?
On 2022-10-26 09:17, Piotr Waszkiewicz wrote:
Hi,
I would like to ask your guidance as I'm entirely sure whether the problem I'm
experiencing should be posted in CPython's repo as a bug issue.
I've tried using newly released Python 3.11 interpreter in some of my projects and one of
them failed to start with "RuntimeError: invalid SRE code" error.
Looking into implementation of one of the dependencies I've found out that the
issue has been found out by a maintainer and fixed
(https://github.com/pydicom/pydicom/issues/1658).
It looks like this particular regexp caused the `re.compile()` method to raise:
```
re.compile(
r"(?P^([01][0-9]|2[0-3]))"
r"((?P([0-5][0-9]))?"
r"(?(5)(?P([0-5][0-9]|60))?)"
r"(?(7)(\.(?P([0-9]{1,6})?))?))$"
)
```
I've checked and this hasn't been an issue in all previous Python interpreter
versions, starting from 3.6 (the oldest I've checked).
What's more the regex i correctly recognized and does not cause any issues in
other regexp implementations, e.g. the online tool https://regex101.com/
Could somebody help me decide whether this is indeed a bug?
It's definitely a bug.
If it was complaining about the pattern then it might or might not be a
bug, you'd need to check more closely, but "invalid SRE code" is
definitely a bug.
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