[PATCH] pylibfdt: Fix "invalid escape sequence '\w'" in setup.py

[Heinrich Schuchardt]

On 2/20/24 14:52, Tom Rini wrote:
> From: Florian Schmaus <flo at geekplace.eu>
> 
> Once u-boot's build system invokes
> 
> python3 scripts/dtc/pylibfdt/setup.py --quiet build_ext --inplace
> 
> it may fail with
> 
> scripts/dtc/pylibfdt/setup.py:40: SyntaxWarning: invalid escape sequence '\w'
>    RE_KEY_VALUE = re.compile('(?P<key>\w+) *(?P<plus>[+])?= *(?P<value>.*)$')
> 
> depending on the used Python version.
> 
> Explicitly mark the regex string as raw string to avoid the warning.
> 
> Signed-off-by: Florian Schmaus <flo at geekplace.eu>

Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>

> ---
>   scripts/dtc/pylibfdt/setup.py | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/scripts/dtc/pylibfdt/setup.py b/scripts/dtc/pylibfdt/setup.py
> index 8baae08770ca..c6fe5a6a446f 100755
> --- a/scripts/dtc/pylibfdt/setup.py
> +++ b/scripts/dtc/pylibfdt/setup.py
> @@ -37,7 +37,7 @@
>       long_description = fh.read()
>   
>   # Decodes a Makefile assignment line into key and value (and plus for +=)
> -RE_KEY_VALUE = re.compile('(?P<key>\w+) *(?P<plus>[+])?= *(?P<value>.*)$')
> +RE_KEY_VALUE = re.compile(r'(?P<key>\w+) *(?P<plus>[+])?= *(?P<value>.*)$')
>   
>   def get_top_builddir():
>       if '--top-builddir' in sys.argv: