Re: Problem with Python when running oe-init-build-env

["Burton, Ross" <ross.burton@intel.com>]

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I suggest you have a look through the feed that you link to and see if it
provides a package which has /usr/bin/python3 in, and if it doesn't then
just make a python3 -> python3.6 symlink (which is all you need).

Ross

On 2 May 2018 at 20:28, Raymond Yeung <rksyeung@hotmail.com> wrote:

> Thanks Zoran.
>
>
> My Linux build machine uses Centos 7.  I thought I'd done the installation
> to Python 3.6.5.  If this is not Python3 > 3.4.0, then I'm confused.  The
> link I follow for installation is here:  https://janikarhunen.fi/how-
> to-install-python-3-6-1-on-centos-7.html
>
> > python3.6 -V
>
> Python 3.6.5
>
> >python -V
>
> Python 2.7.5
>
>
> Anyway, I realize what went wrong.  I'd Krogoth (a 2016 Poky) running
> before.  Now as I'm migrating to Rocko (a 2017 Poky), I try to solve a
> Python versioning issue by installing Python only (as above).  However,
> there may be other packages I need to update.  After getting latest
> Reference Manual, download and install latest environment, I no longer have
> python3 issue.  However, the Python version of why Python3.6 won't satisfy
> Python > 3.4.0 still puzzles me (though no longer blocking me).
>
>
> Raymond
>
>
> ------------------------------
> *From:* Zoran Stojsavljevic <zoran.stojsavljevic@gmail.com>
> *Sent:* Tuesday, May 1, 2018 11:19 PM
> *To:* Raymond Yeung
> *Cc:* yocto@yoctoproject.org
> *Subject:* Re: [yocto] Problem with Python when running oe-init-build-env
>
> Hello Raymond,
>
> The problem is that you (talking about your host distro):
> [1] Do NOT have python3 package installed;
> [2] Do have python3 package < 3.4.0 version, so you need to upgrade!
>
> So, I have no idea which host distro you are using, but:
> [1] If Debian/Ubuntu, then: apt-get install python3
>      If Fedora, then dnf install python3
> [2] If Debian/Ubuntu, then: apt-get update python3
>      If Fedora, then dnf update python3
>
> Hope this helps,
> Zoran
> _______
>
> On Tue, May 1, 2018 at 10:43 PM, Raymond Yeung <rksyeung@hotmail.com>
> wrote:
> > I'd just git cloned Rocko and meta-ti.  When I try to source
> > oe-init-build-env, I got errors:
> >
> >
> > -bash: python3: command not found
> >
> > BitBake requires Python 3.4.0 or later as 'python3'.  "python -V" gives
> > "Python 2.7.9".  "python3" is not in $PATH.  I'd followed some detailed
> > online description to install Python 3.6 on CentOS 7.  However, after
> > installation, it looks like I need to invoke it with python3.6.
> >
> >
> > How does this work now?  I suppose the oe-init-build-env script
> uses/expects
> > python3, not python3.6.
> >
> >
> > Any insight?
> >
> >
> > Raymond
> >
> >
> > --
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