On 01/08/19 19:05, Carsey, Jaben wrote: > > >> -----Original Message----- >> From: Laszlo Ersek [mailto:ler...@redhat.com] >> Sent: Tuesday, January 08, 2019 9:26 AM >> To: Carsey, Jaben <jaben.car...@intel.com>; 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 >> Importance: High >> >> On 01/08/19 17:22, Carsey, Jaben wrote: >>> Liming and Laszlo, >>> What if we add a 4th option to the environment variable - the path to >> a specific python interpreter for use. >> >> I thought of that, but how do the build tools derive the python version >> just from the pathname of the interpreter? >> >> Will they run "$INTERPRETER --version" and parse the output? >> >> I think that could be brittle; distributions sometimes customize the >> version strings of their executables. The "--version" output is usually >> human-readable, not machine-readable (per intent). > > Laszlo, you lost me. How is that related to an exact path? If the user > specifies the path, then always use that specific interpreter.
Sorry, my fault. I've been confused by an *earlier* approach that was described here: https://bugzilla.tianocore.org/show_bug.cgi?id=55#c10 https://bugzilla.tianocore.org/show_bug.cgi?id=55#c12 In that case, if the user only specified the interpreter path, it would be clear what *interpreter* to use, however it would not be not clear what *sub-codebase* from BaseTools to run on that interpreter: the Python2 one, or the Python3 one. However, now I remember, from https://bugzilla.tianocore.org/show_bug.cgi?id=55#c14 https://bugzilla.tianocore.org/show_bug.cgi?id=55#c15 that after all, the goal is a single common set of BaseTools source code that runs on Python2 and Python3 alike. In that regard, I agree that the interpreter pathname is the *only* input we should take & accept from the user, and the particular python *language version* need neither be provided by the user, nor be detected by BaseTools themselves. Sorry about the confusion! Thanks, Laszlo _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
