[dts] [PATCH V2 1/3] framework: check the python version

[Tu, Lijuan]

DTS only support Python3 now, it doesn't support Python2. But it requires Python minus version. E.g. Python3.4 is not supported, it  requires version larger than 3.6x.

> +def check_crb_python_version(crb):
> +    cmd = 'python3 -V'

It seems you are telling python version for python 3. If you are using python3, how can it tell you python2.

> +    out = crb.send_expect(cmd, '#', 5)
> +    pat = "Python (\d+).(\d+).(\d+)"
> +    result = re.findall(pat, out)
> +    if not result or int(result[0][0]) < 3:
> +        crb.logger.warning(
> +            ("WARNING: Tester node python version is lower than python 3, "
> +             "it is deprecated for use in DTS, "
Python2 have been replaced by Python2 in DTS, so the message is not reasonable.

> +             "and will not work in future releases."))
> +        crb.logger.warning("Please use Python 3 instead")
> +
> +
> +def check_dts_python_version():
> +    if sys.version_info.major < 3:
> +        print(RED(
> +            ("WARNING: Dts running node python version is lower than python 3, "
> +             "it is deprecated for use in DTS, "
> +             "and will not work in future releases.")), file=sys.stderr)
> +        print(RED("Please use Python 3 instead"), file=sys.stderr)
> --
> 2.21.0