On Wed, Jun 16, 2021 at 2:40 AM SeongJae Park <sj38.park@xxxxxxxxx> wrote:
>
> From: SeongJae Park <sjpark@xxxxxxxxx>
>
> Commit 87c9c1631788 ("kunit: tool: add support for QEMU") on the 'next'
> tree adds 'from __future__ import annotations' in 'kunit_kernel.py'.
> Because it is supported on only >=3.7 Python, people using older Python
> will get below error:
Ah, we had been fine with just using 3.6 before this (and could have
dropped down to 3.5 with a few lines changed).
But 3.7 came out initially in 2018*, so I assume we're probably fine
to rely on that in kunit tool.
*https://www.python.org/downloads/release/python-370/
>
> Traceback (most recent call last):
> File "./tools/testing/kunit/kunit.py", line 20, in <module>
> import kunit_kernel
> File "/home/sjpark/linux/tools/testing/kunit/kunit_kernel.py", line 9
> from __future__ import annotations
> ^
> SyntaxError: future feature annotations is not defined
>
> This commit adds a version assertion in 'kunit.py', so that people get
> more explicit error message like below:
>
> Traceback (most recent call last):
> File "./tools/testing/kunit/kunit.py", line 15, in <module>
> assert sys.version_info >= (3, 7)
> AssertionError
>
> Signed-off-by: SeongJae Park <sjpark@xxxxxxxxx>
Acked-by: Daniel Latypov <dlatypov@xxxxxxxxxx>
> ---
> tools/testing/kunit/kunit.py | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
> index be8d8d4a4e08..748d88178506 100755
> --- a/tools/testing/kunit/kunit.py
> +++ b/tools/testing/kunit/kunit.py
> @@ -12,6 +12,8 @@ import sys
> import os
> import time
>
> +assert sys.version_info >= (3, 7)
Do we perhaps want
assert sys.version_info >= (3, 7), "Python version is too old"
Then the error message would be
Traceback (most recent call last):
File "./tools/testing/kunit/kunit.py", line 15, in <module>
assert sys.version_info >= (3, 7), "Python version is too old"
AssertionError: Python version is too old
I assume kernel devs know some Python, but not necessarily that
sys.version_info == "my python version"
> +
> from collections import namedtuple
> from enum import Enum, auto
>
> --
> 2.17.1
>
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