[Buildroot] make graph-size on Ubuntu 20.04, buildroot 2020.05-rc2

[Buildroot] make graph-size on Ubuntu 20.04, buildroot 2020.05-rc2

[Todd Sampson]

/m9k2/buildroot$ make graph-size
You need python-matplotlib to generate the size graph
make[1]: *** [Makefile:904: graph-size] Error 1
make: *** [Makefile:84: _all] Error 2

python-matplotlib doesn't seem to be available on Ubuntu 20.04.  Maybe it's
because 20.04 is trying to pressure everyone to use python 3.

Is there a way to get it to work?

Thanks!
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[Buildroot] make graph-size on Ubuntu 20.04, buildroot 2020.05-rc2

[Thomas Petazzoni]

On Thu, 28 May 2020 16:12:48 -0400
Todd Sampson <sampsonats@gmail.com> wrote:

> /m9k2/buildroot$ make graph-size
> You need python-matplotlib to generate the size graph
> make[1]: *** [Makefile:904: graph-size] Error 1
> make: *** [Makefile:84: _all] Error 2
> 
> python-matplotlib doesn't seem to be available on Ubuntu 20.04.  Maybe it's
> because 20.04 is trying to pressure everyone to use python 3.

It should work with Python 3, so just install matplotlib for Python 3.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

[Buildroot] make graph-size on Ubuntu 20.04, buildroot 2020.05-rc2

[Thomas Petazzoni]

Hello,

Please use Reply-All when replying, to keep the mailing list in Cc,
thanks.

On Thu, 28 May 2020 16:49:11 -0400
Todd Sampson <sampsonats@gmail.com> wrote:

> dfr at cmake:~/m9k2/buildroot$ sudo apt install python3-matplotlib
> [sudo] password for dfr:
> Reading package lists... Done
> Building dependency tree
> Reading state information... Done
> python3-matplotlib is already the newest version (3.1.2-1ubuntu4).
> 0 upgraded, 0 newly installed, 0 to remove and 84 not upgraded.
> dfr at cmake:~/m9k2/buildroot$ make graph-size
> *You need python-matplotlib to generate the size graph*
> make[1]: *** [Makefile:904: graph-size] Error 1
> make: *** [Makefile:84: _all] Error 2

Then this means that your /usr/bin/python is pointing to
/usr/bin/python2. The script being "make graph-size",
support/scripts/size-stats, simply uses "/usr/bin/env python", which it
assumes is your default interpreter, which should have matplotlib
installed.

Is is the standard Ubuntu 20.04 behavior to have python point to
python2, but no longer provide python-matplotlib. This looks odd. Have
you changed your /usr/bin/python perhaps ?

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

[Buildroot] make graph-size on Ubuntu 20.04, buildroot 2020.05-rc2

[Todd Sampson]

dfr at cmake:~/m9k2/buildroot$ ll /usr/bin/python
lrwxrwxrwx 1 root root 7 Apr 15 06:45 /usr/bin/python -> python2*

I set the link back to python3 and now it works!

Thanks!!

On Thu, May 28, 2020 at 4:54 PM Thomas Petazzoni <
thomas.petazzoni@bootlin.com> wrote:

> Hello,
>
> Please use Reply-All when replying, to keep the mailing list in Cc,
> thanks.
>
> On Thu, 28 May 2020 16:49:11 -0400
> Todd Sampson <sampsonats@gmail.com> wrote:
>
> > dfr at cmake:~/m9k2/buildroot$ sudo apt install python3-matplotlib
> > [sudo] password for dfr:
> > Reading package lists... Done
> > Building dependency tree
> > Reading state information... Done
> > python3-matplotlib is already the newest version (3.1.2-1ubuntu4).
> > 0 upgraded, 0 newly installed, 0 to remove and 84 not upgraded.
> > dfr at cmake:~/m9k2/buildroot$ make graph-size
> > *You need python-matplotlib to generate the size graph*
> > make[1]: *** [Makefile:904: graph-size] Error 1
> > make: *** [Makefile:84: _all] Error 2
>
> Then this means that your /usr/bin/python is pointing to
> /usr/bin/python2. The script being "make graph-size",
> support/scripts/size-stats, simply uses "/usr/bin/env python", which it
> assumes is your default interpreter, which should have matplotlib
> installed.
>
> Is is the standard Ubuntu 20.04 behavior to have python point to
> python2, but no longer provide python-matplotlib. This looks odd. Have
> you changed your /usr/bin/python perhaps ?
>
> Thomas
> --
> Thomas Petazzoni, CTO, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
>
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[Buildroot] make graph-size on Ubuntu 20.04, buildroot 2020.05-rc2

[François Perrad]

Le jeu. 28 mai 2020 ? 23:31, Todd Sampson <sampsonats@gmail.com> a ?crit :

> dfr at cmake:~/m9k2/buildroot$ ll /usr/bin/python
> lrwxrwxrwx 1 root root 7 Apr 15 06:45 /usr/bin/python -> python2*
>
> I set the link back to python3 and now it works!
>
>
On Ubuntu 20.04, the packet `python-is-python3` does this job.

Fran?ois


> Thanks!!
>
> On Thu, May 28, 2020 at 4:54 PM Thomas Petazzoni <
> thomas.petazzoni at bootlin.com> wrote:
>
>> Hello,
>>
>> Please use Reply-All when replying, to keep the mailing list in Cc,
>> thanks.
>>
>> On Thu, 28 May 2020 16:49:11 -0400
>> Todd Sampson <sampsonats@gmail.com> wrote:
>>
>> > dfr at cmake:~/m9k2/buildroot$ sudo apt install python3-matplotlib
>> > [sudo] password for dfr:
>> > Reading package lists... Done
>> > Building dependency tree
>> > Reading state information... Done
>> > python3-matplotlib is already the newest version (3.1.2-1ubuntu4).
>> > 0 upgraded, 0 newly installed, 0 to remove and 84 not upgraded.
>> > dfr at cmake:~/m9k2/buildroot$ make graph-size
>> > *You need python-matplotlib to generate the size graph*
>> > make[1]: *** [Makefile:904: graph-size] Error 1
>> > make: *** [Makefile:84: _all] Error 2
>>
>> Then this means that your /usr/bin/python is pointing to
>> /usr/bin/python2. The script being "make graph-size",
>> support/scripts/size-stats, simply uses "/usr/bin/env python", which it
>> assumes is your default interpreter, which should have matplotlib
>> installed.
>>
>> Is is the standard Ubuntu 20.04 behavior to have python point to
>> python2, but no longer provide python-matplotlib. This looks odd. Have
>> you changed your /usr/bin/python perhaps ?
>>
>> Thomas
>> --
>> Thomas Petazzoni, CTO, Bootlin
>> Embedded Linux and Kernel engineering
>> https://bootlin.com
>>
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot
>
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