Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[Alexandru Ardelean]

It's still turned off.
But it was turned off again, once it was moved to Github.
There was a more recent discussion here:
https://github.com/openwrt/packages/issues/474

[ Quick answer here: yes we can precompile bytecodes at build-time and ship
those instead ]

So, .py  vs  .pyc  vs  .pyo  is a recurring question.

.py - python source file
.pyc - compiled bytecodes (from .py file)
.pyo - compiled optimized bytecodes (not sure yet what optimized means)

Which of these 3 formats should the Python libraries use to be packaged ?
Opinions differ here.

At the time I packaged python, it seemed logical that .py files should be
it; that's how most how distros get Python packaged.
But then, .py files automatically generate .pyc files that fill up RAM or
Flash, so that was disabled [ for the OpenWRT case ].

But now that I re-think about it [for the OpenWRT case] maybe changing to
.pyo would be better, since it would optimize performance (size & speed).
And then the source files could be re-packaged to python-sources [ or
something ] .
One proposal was a bit backwards in logic: i.e. package Python libs as are
now, and package Python bytecodes in additional+installable packages.
My main preference here, is that I wouldn't want to give up the convenience
of having Python source files, which is why I prefer[ed] to sacrifice
performance in the first place.
[ And then, nobody complained yet loud enough to change this ].

So, this python packages to bytecode conversion + python sources packages
would be an interesting idea to do.


On Tue, Jul 21, 2015 at 11:48 PM, valent.turko...@gmail.com <
valent.turko...@gmail.com> wrote:

> Just found this --
>
> https://dev.openwrt.org/browser/packages/lang/python/files/python-package.mk?rev=13921
> -- which suggests that 7 years ago .pyc file creation was turned OFF
> for Python.
>
> I can only assume that it was because of the SquashFS issue, so my
> question is: Can we precompile Python files at image creation time so
> that they can be included in the SquashFS from the beginning. Maybe a
> cross-compiling guru can enlighten us?
>
> On 2 July 2015 at 11:25, Alexandru Ardelean 
> wrote:
> > Will make time to update Python :)
> >
> >
> > On Thu, Jul 2, 2015 at 11:51 AM, valent.turko...@gmail.com
> >  wrote:
> >>
> >> Come on guys help me out with Python wiki page, it looks like I know
> >> much less about python that you and I'm the only one documenting this
> >> which is bad :)
> >>
> >> Take a look at latest version:
> >> http://wiki.openwrt.org/doc/software/python
> >>
> >> On 27 June 2015 at 22:42, Christian Mehlis  wrote:
> >> > Am 26.06.2015 um 14:57 schrieb valent.turko...@gmail.com:
> >> >>
> >> >> Does micro-python have some alternative or replacement for pyserial?
> >> >
> >> >
> >> > you can use stty[1] from busybox to configure the tty.
> >> > After that every program can use regular read/write calls...
> >> >
> >> > [1] http://unixhelp.ed.ac.uk/CGI/man-cgi?stty
> >> >
> >> > Best
> >> > Christian
> >> >
> >> > ___
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> >> > openwrt-devel@lists.openwrt.org
> >> > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
> >
> >
>
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[valent.turko...@gmail.com]

Just found this --
https://dev.openwrt.org/browser/packages/lang/python/files/python-package.mk?rev=13921
-- which suggests that 7 years ago .pyc file creation was turned OFF
for Python.

I can only assume that it was because of the SquashFS issue, so my
question is: Can we precompile Python files at image creation time so
that they can be included in the SquashFS from the beginning. Maybe a
cross-compiling guru can enlighten us?

On 2 July 2015 at 11:25, Alexandru Ardelean  wrote:
> Will make time to update Python :)
>
>
> On Thu, Jul 2, 2015 at 11:51 AM, valent.turko...@gmail.com
>  wrote:
>>
>> Come on guys help me out with Python wiki page, it looks like I know
>> much less about python that you and I'm the only one documenting this
>> which is bad :)
>>
>> Take a look at latest version:
>> http://wiki.openwrt.org/doc/software/python
>>
>> On 27 June 2015 at 22:42, Christian Mehlis  wrote:
>> > Am 26.06.2015 um 14:57 schrieb valent.turko...@gmail.com:
>> >>
>> >> Does micro-python have some alternative or replacement for pyserial?
>> >
>> >
>> > you can use stty[1] from busybox to configure the tty.
>> > After that every program can use regular read/write calls...
>> >
>> > [1] http://unixhelp.ed.ac.uk/CGI/man-cgi?stty
>> >
>> > Best
>> > Christian
>> >
>> > ___
>> > openwrt-devel mailing list
>> > openwrt-devel@lists.openwrt.org
>> > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>
>
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[Alexandru Ardelean]

Will make time to update Python :)


On Thu, Jul 2, 2015 at 11:51 AM, valent.turko...@gmail.com <
valent.turko...@gmail.com> wrote:

> Come on guys help me out with Python wiki page, it looks like I know
> much less about python that you and I'm the only one documenting this
> which is bad :)
>
> Take a look at latest version:
> http://wiki.openwrt.org/doc/software/python
>
> On 27 June 2015 at 22:42, Christian Mehlis  wrote:
> > Am 26.06.2015 um 14:57 schrieb valent.turko...@gmail.com:
> >>
> >> Does micro-python have some alternative or replacement for pyserial?
> >
> >
> > you can use stty[1] from busybox to configure the tty.
> > After that every program can use regular read/write calls...
> >
> > [1] http://unixhelp.ed.ac.uk/CGI/man-cgi?stty
> >
> > Best
> > Christian
> >
> > ___
> > openwrt-devel mailing list
> > openwrt-devel@lists.openwrt.org
> > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[valent.turko...@gmail.com]

Come on guys help me out with Python wiki page, it looks like I know
much less about python that you and I'm the only one documenting this
which is bad :)

Take a look at latest version:
http://wiki.openwrt.org/doc/software/python

On 27 June 2015 at 22:42, Christian Mehlis  wrote:
> Am 26.06.2015 um 14:57 schrieb valent.turko...@gmail.com:
>>
>> Does micro-python have some alternative or replacement for pyserial?
>
>
> you can use stty[1] from busybox to configure the tty.
> After that every program can use regular read/write calls...
>
> [1] http://unixhelp.ed.ac.uk/CGI/man-cgi?stty
>
> Best
> Christian
>
> ___
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[Christian Mehlis]

Am 26.06.2015 um 14:57 schrieb valent.turko...@gmail.com:

Does micro-python have some alternative or replacement for pyserial?


you can use stty[1] from busybox to configure the tty.
After that every program can use regular read/write calls...

[1] http://unixhelp.ed.ac.uk/CGI/man-cgi?stty

Best
Christian
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[micke . prag]

Hi,

I have just created a pull request for an updated version of pyserial.
https://github.com/openwrt/packages/pull/1485

Regards
Micke Prag

2015-06-26 15:26 skrev Alexandru Ardelean:

Ah, since that email, python became: - python-base - just the minimal 
to

have a python interpreter running - python-light - is a "dynamic"
package; it's python (full) minus all other python-codecs,
python-compiler, etc - python - full python install, minus a few 
stuff I

considered that could be stripped [to reduce size], like tests [per
module], some python-tk/tcl [GUI] libs

The idea of python-light is that, whenever you move a Python built-in
module from python-light into a separate package (like 
python-codecs),

python-light gets lighter.

The mechanism is fairly dynamic; you just need to add a new
'python-package-xxx.mk [3]' file with some basic Makefile rules, 
and

that's it.

People can choose to install python-base if they need like
really-really-really-really basic python (a = b + c and maybe some 
other

syntax).
Then they can choose to install other optional packages.
But for most cases, maybe python-light would be sufficient.

The above is also true for python3.

On Fri, Jun 26, 2015 at 4:15 PM, valent.turko...@gmail.com
 wrote:


On 24 October 2014 at 11:10, Alexandru Ardelean
 wrote:
> python-mini is now just python.

Thanks for clarification, I'll add that info on Python OpenWrt Wiki
page [1].

I tried installing python package on Caos Calmer rc2 and I get a 
bunch

of dependencies installed automatically and they use up bunch of
space. I didn't notice that python-mini package installed lots of
dependencies on Barrier Breaker, but I'm not 100% sure.

Was python-mini package on BB python without any dependencies and
python same package but with all added dependencies?

[1] http://wiki.openwrt.org/doc/software/python [1]


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Links:
--
[1] http://wiki.openwrt.org/doc/software/python
[2] https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
[3] http://python-package-xxx.mk
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[Alexandru Ardelean]

Ah, since that email,  python became:
- python-base - just the minimal to have a python interpreter running
- python-light - is a "dynamic" package; it's python (full) minus all other
python-codecs, python-compiler, etc
- python - full python install, minus a few stuff I considered that could
be stripped [to reduce size], like tests [per module],  some python-tk/tcl
[GUI] libs

The idea of python-light is that, whenever you move a Python built-in
module from python-light into a separate package (like python-codecs),
python-light gets lighter.
The mechanism is fairly dynamic; you just need to add a new '
python-package-xxx.mk' file with some basic Makefile rules, and that's
it.

People can choose to install python-base if they need like
really-really-really-really basic python (a = b + c and maybe some other
syntax).
Then they can choose to install other optional packages.
But for most cases, maybe python-light would be sufficient.

The above is also true for python3.



On Fri, Jun 26, 2015 at 4:15 PM, valent.turko...@gmail.com <
valent.turko...@gmail.com> wrote:

> On 24 October 2014 at 11:10, Alexandru Ardelean 
> wrote:
> > python-mini is now just python.
>
> Thanks for clarification, I'll add that info on Python OpenWrt Wiki page
> [1].
>
> I tried installing python package on Caos Calmer rc2 and I get a bunch
> of dependencies installed automatically and they use up bunch of
> space. I didn't notice that python-mini package installed lots of
> dependencies on Barrier Breaker, but I'm not 100% sure.
>
> Was python-mini package on BB python without any dependencies and
> python same package but with all added dependencies?
>
> [1] http://wiki.openwrt.org/doc/software/python
>
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[valent.turko...@gmail.com]

On 24 October 2014 at 11:10, Alexandru Ardelean  wrote:
> python-mini is now just python.

Thanks for clarification, I'll add that info on Python OpenWrt Wiki page [1].

I tried installing python package on Caos Calmer rc2 and I get a bunch
of dependencies installed automatically and they use up bunch of
space. I didn't notice that python-mini package installed lots of
dependencies on Barrier Breaker, but I'm not 100% sure.

Was python-mini package on BB python without any dependencies and
python same package but with all added dependencies?

[1] http://wiki.openwrt.org/doc/software/python
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[valent.turko...@gmail.com]

Does micro-python have some alternative or replacement for pyserial?

On 31 October 2014 at 08:52, Alexandru Ardelean  wrote:
> python has been moved to Github
> https://github.com/openwrt/packages/tree/master/lang/python
>
> python-mini will be rebooted;
>
> the whole python package needs a bit of revamp/cleanup especially since it's
> been upgraded to version 2.7.8
>
> as for python-smbus and pyserial, someone will have to maintain those;
> otherwise they'll just stay in old packages, while other packages get moved
> to Github
>
>
>
> On Fri, Oct 31, 2014 at 8:05 AM,  wrote:
>>
>> python-smbus/serial depends still on python-mini
>> python and python-mini is missing.
>>
>> ?
>>
>>
>> Am Fri, 24 Oct 2014 12:10:32 +0300
>> schrieb Alexandru Ardelean :
>>
>> > python-mini is now just python.
>> >
>> >
>> >
>> > On Fri, Oct 24, 2014 at 12:06 PM, Claudio Thomas
>> >  wrote:
>> >
>> > >  Hi,
>> > > "python-mini" is missing in oldpackages (trunk), is there an
>> > > alternative for "python-mini"?
>> > > I need it for pyserial, which depends on "python-mini", and still
>> > > exists in oldpackages (trunk).
>> > >
>> > > What about "micropython+micropython-lib"?
>> > > Has anyone already tested this as replacement?
>> > >
>> > > Thanks,
>> > > Claudio
>> > > --
>> > > Working on OpenWrt BB for XM1700E
>> > > 
>> > >
>> > > ___
>> > > openwrt-devel mailing list
>> > > openwrt-devel@lists.openwrt.org
>> > > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
>> > >
>> > >
>>
>>
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[Alexandru Ardelean]

python has been moved to Github
https://github.com/openwrt/packages/tree/master/lang/python

python-mini will be rebooted;

the whole python package needs a bit of revamp/cleanup especially since
it's been upgraded to version 2.7.8

as for python-smbus and pyserial, someone will have to maintain those;
otherwise they'll just stay in old packages, while other packages get moved
to Github



On Fri, Oct 31, 2014 at 8:05 AM,  wrote:

> python-smbus/serial depends still on python-mini
> python and python-mini is missing.
>
> ?
>
>
> Am Fri, 24 Oct 2014 12:10:32 +0300
> schrieb Alexandru Ardelean :
>
> > python-mini is now just python.
> >
> >
> >
> > On Fri, Oct 24, 2014 at 12:06 PM, Claudio Thomas
> >  wrote:
> >
> > >  Hi,
> > > "python-mini" is missing in oldpackages (trunk), is there an
> > > alternative for "python-mini"?
> > > I need it for pyserial, which depends on "python-mini", and still
> > > exists in oldpackages (trunk).
> > >
> > > What about "micropython+micropython-lib"?
> > > Has anyone already tested this as replacement?
> > >
> > > Thanks,
> > > Claudio
> > > --
> > > Working on OpenWrt BB for XM1700E
> > > 
> > >
> > > ___
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> > > openwrt-devel@lists.openwrt.org
> > > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
> > >
> > >
>
>
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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[smilebef]

python-smbus/serial depends still on python-mini
python and python-mini is missing.

?


Am Fri, 24 Oct 2014 12:10:32 +0300
schrieb Alexandru Ardelean :

> python-mini is now just python.
> 
> 
> 
> On Fri, Oct 24, 2014 at 12:06 PM, Claudio Thomas
>  wrote:
> 
> >  Hi,
> > "python-mini" is missing in oldpackages (trunk), is there an
> > alternative for "python-mini"?
> > I need it for pyserial, which depends on "python-mini", and still
> > exists in oldpackages (trunk).
> >
> > What about "micropython+micropython-lib"?
> > Has anyone already tested this as replacement?
> >
> > Thanks,
> > Claudio
> > --
> > Working on OpenWrt BB for XM1700E
> > 
> >
> > ___
> > openwrt-devel mailing list
> > openwrt-devel@lists.openwrt.org
> > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
> >
> >



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Re: [OpenWrt-Devel] alternative for "pyserial+python-mini"

[Alexandru Ardelean]

python-mini is now just python.



On Fri, Oct 24, 2014 at 12:06 PM, Claudio Thomas 
wrote:

>  Hi,
> "python-mini" is missing in oldpackages (trunk), is there an alternative
> for "python-mini"?
> I need it for pyserial, which depends on "python-mini", and still exists
> in oldpackages (trunk).
>
> What about "micropython+micropython-lib"?
> Has anyone already tested this as replacement?
>
> Thanks,
> Claudio
> --
> Working on OpenWrt BB for XM1700E
> 
>
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>
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