Re: [PATCH v3] decodetree: Open files with encoding='utf-8'

[Richard Henderson]

On 1/9/21 2:02 PM, Philippe Mathieu-Daudé wrote:
> When decodetree.py was added in commit 568ae7efae7, QEMU was
> using Python 2 which happily reads UTF-8 files in text mode.
> Python 3 requires either UTF-8 locale or an explicit encoding
> passed to open(). Now that Python 3 is required, explicit
> UTF-8 encoding for decodetree source files.
> 
> To avoid further problems with the user locale, also explicit
> UTF-8 encoding for the generated C files.
> 
> Explicit both input/output are plain text by using the 't' mode.
> 
> This fixes:
> 
>   $ /usr/bin/python3 scripts/decodetree.py test.decode
>   Traceback (most recent call last):
>     File "scripts/decodetree.py", line 1397, in <module>
>       main()
>     File "scripts/decodetree.py", line 1308, in main
>       parse_file(f, toppat)
>     File "scripts/decodetree.py", line 994, in parse_file
>       for line in f:
>     File "/usr/lib/python3.6/encodings/ascii.py", line 26, in decode
>       return codecs.ascii_decode(input, self.errors)[0]
>   UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 80:
>   ordinal not in range(128)
> 
> Reported-by: Peter Maydell <peter.maydell@linaro.org>
> Suggested-by: Yonggang Luo <luoyonggang@gmail.com>
> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
> v3: utf-8 stdout (Eduardo and Yonggang Luo)
> v2: utf-8 output too (Peter)
>     explicit default text mode.
> ---
>  scripts/decodetree.py | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)
> 

Thanks.  Queued to tcg-next.


r~