Re: [RFC 1/6] scripts/get_abi.py: make it backward-compatible with Python 3.6

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Hi,

Jonathan Corbet wrote:
> Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx> writes:
> 
>> Despite being introduced on Python 3.6, the original implementation
>> was too limited: it doesn't accept anything but the argument.
> 
> The original implementation *of f-strings* ?
> 
>> Even on python 3.10.12, support was still limited, as more complex
>> operations cause SyntaxError:
>>
>> 	Exception occurred:
>> 	  File ".../linux/Documentation/sphinx/kernel_abi.py", line 48, in <module>
>> 	    from get_abi import AbiParser
>> 	  File ".../linux/scripts/get_abi.py", line 525
>> 	    msg += f"{part}\n{"-" * len(part)}\n\n"
>>                        ^
>> 	SyntaxError: f-string: expecting '}'
>>
>> Replace f-strings by normal string concatenation when it doesn't
>> work on Python 3.6.
>>
>> Reported-by: Akira Yokosawa <akiyks@xxxxxxxxx>

You might want to add

Closes: https://lore.kernel.org/2d4d3fd1-5fe2-4d18-9085-73f9ff930c2d@xxxxxxxxx/

>> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
> 
> So I'm curious ... later in the series, you make 3.9 the minimal version
> for the kernel.  Given that, is there value in adding compatibility for
> older versions here?

I think rewording the summary to

  "scripts/get_abi.py: make it backward-compatible with Python <3.11"

would resolve Jon's confusion.

I haven't looked into python3'changelog, but it might be
"... backward-compatible with Python <3.12".
Mauro, which python3 release extended the f-string implementation?

        Thanks, Akira





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