[OpenIndiana-discuss] meld tool/utility is broken

[Predrag Zečević]

On 2026-09-15 09:40, Andreas Wacknitz via openindiana-discuss wrote:
> Am 15.09.26 um 09:20 schrieb Andreas Wacknitz via openindiana-discuss:
>> Am 15.09.26 um 09:10 schrieb Predrag Zečević via openindiana-discuss:
>>>
>>> On 2026-09-14 22:00, Tim Mooney via openindiana-discuss wrote:
>>>> In regard to: [OpenIndiana-discuss] meld tool/utility is broken, 
>>>> Predrag...:
>>>>
>>>>>     x: float | None = None,
>>>>> TypeError: unsupported operand type(s) for |: 'type' and 'NoneType'
>>>>
>>>> I think it may be this:
>>>>
>>>> https://stackoverflow.com/questions/76712720/typeerror-unsupported- 
>>>> operand-types-for-type-and-nonetype
>>>>
>>>> Both meld's web site and meld's gitlab page says it only requires 
>>>> Python
>>>> 3.4.7 or later, but that "type | None" syntax is apparently a Python 
>>>> 3.10+
>>>> thing.
>>>>
>>>> The first answer on the stackoverflow site has a couple of workarounds
>>>> involving other modules.  You might try hack your copy to use one of 
>>>> them,
>>>> to see if that fixes it.
>>>>
>>>> I don't know for certain if this will work, assuming you have other 
>>>> python
>>>> runtimes installed, you could instead try something like
>>>>
>>>>      /usr/bin/python3.14 /usr/bin/meld file1.xml file2.xml
>>>>
>>>> to see if the problem goes away.
>>>>
>>>> Tim
>>>
>>> IMHO, meld needs rebuild with python 3.14...
>>>
>>> a) There is obviously no meld module present for python 3.14:
>>> :; /usr/bin/python3.14 /usr/bin/meld file1.xml file2.xml
>>> Traceback (most recent call last):
>>>   File "/usr/bin/meld", line 98, in <module>
>>>     import meld.conf  # noqa: E402
>>>     ^^^^^^^^^^^^^^^^
>>> ModuleNotFoundError: No module named 'meld'
>>>
>>> b) Python 3.9 is still default one:
>>> :; pkg mediator python
>>> MEDIATOR            VER. SRC. VERSION IMPL. SRC. IMPLEMENTATION
>>> python              local     3.9     vendor
>>>
>>>
>>> Thanks anyway
>>>
>>>
>> We cannot switch to 3.14 at the moment. IPS depends heavily on the 
>> python version and some additional packages.
>> As for meld we cannot switch to python 3.14 either because we miss 
>> some python packages for 3.14 (eg. pygobject). Anybody willing to work 
>> on it?
>>
>> Andreas
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> For the time being I have downgraded meld to 3.22.3.

Thanks: it works again.

With the best regards

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-- 
Predrag Zečević