Liming and Laszlo,
What if we add a 4th option to the environment variable - the path to a
specific python interpreter for use.
-Jaben
> -----Original Message-----
> From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of
> Gao, Liming
> Sent: Tuesday, January 08, 2019 6:23 AM
> To: Laszlo Ersek <ler...@redhat.com>; Ni, Ray <ray...@intel.com>; edk2-
> de...@lists.01.org; leif.lindh...@linaro.org; af...@apple.com; Kinney,
> Michael D <michael.d.kin...@intel.com>
> Subject: Re: [edk2] [RFC] Edk2 BaseTools Python3 Migration Update
>
> Laszlo:
> Yes. This can be supported. But, I don't know what purpose to specify
> python minor version of Python3. Current implementation in Python3 branch
> always tries to find the high version installed in OS. For example, Python3.4,
> Python3.7 are both installed, Python3.7 will be chosen. Does this policy meet
> with your usage?
>
> Thanks
> Liming
> > -----Original Message-----
> > From: Laszlo Ersek [mailto:ler...@redhat.com]
> > Sent: Tuesday, January 8, 2019 3:04 AM
> > To: Gao, Liming <liming....@intel.com>; Ni, Ray <ray...@intel.com>; edk2-
> de...@lists.01.org; leif.lindh...@linaro.org;
> > af...@apple.com; Kinney, Michael D <michael.d.kin...@intel.com>
> > Subject: Re: [edk2] [RFC] Edk2 BaseTools Python3 Migration Update
> >
> > On 01/07/19 14:41, Gao, Liming wrote:
> > > Ray:
> > > I think this proposal is good to recommend Python3 as the default
> interpreter. I summary the updated proposal.
> > >
> > > 1. PYTHON3_ENABLE env is not set. edksetup.bat/edksetup.sh will find
> higher version python installed in OS. If Python3 is found,
> > Python3 will be used. Then, if python2 is found, and python2 is used. If not
> found, report error and stop build. This will change the
> > default python interpreter from Python2 to Python3 when they both are
> installed.
> > > 2. PYTHON3_EANBLE env is set to TRUE. edksetup.bat/edksetup.sh will
> find Python3. If Python3 is found, Python3 will be used. If not
> > found, report error and stop build.
> > > 3. PYTHON3_ENABLE env is set to not TRUE. edksetup.bat/edksetup.sh
> will find Python2. If Python2 is found, Python2 will be used. If
> > not found, report error and stop build.
> > > Once Python is found, edksetup.bat/edksetup.sh and build tool will both
> print message to let user aware which version python tool is
> > used in this build.
> >
> > If we're going for this level of flexibility, I'd like to suggest /
> > request another improvement. Some Linux distros intend to accommodate
> > multiple Python3 versions at the same time (this is not a typo; I don't
> > mean Python2+Python3, but multiple Python3 versions). So basically I'd
> > suggest that we offer a method for specifying a python version
> > (2/3/auto-detect), plus, in case a specific major version is specified,
> > that we allow the user to specify the precise interpreter pathname too.
> >
> > Thanks,
> > Laszlo
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