Python2 maintenance will expired

Python2 maintenance will expired

[Junling Zheng]

Hi, Richard

Python 2.7 will not be maintained past January 1, 2020 :(

Some codes in yocto/poky are not compatible with Python 3.

Does yocto/poky have any measures for this?

Thanks,

Junling

Re: Python2 maintenance will expired

[Richard Purdie]

Hi,

On Thu, 2019-11-21 at 15:18 +0800, Junling Zheng wrote:
> Python 2.7 will not be maintained past January 1, 2020 :(
> 
> Some codes in yocto/poky are not compatible with Python 3.
> 
> Does yocto/poky have any measures for this?

The project has been working hard to remove python2 dependencies where
we can and in OE-Core, on target usage has been removed and at build
time, u-boot is one of the main remaining pieces that still needs it.
Their next release should address that issue.

There is still a need for python2 in HOSTTOOLS but that is also being
looked at.

People with time to work on issues like this are in short supply so any
help in fixing the remaining issues would be much appreciated.

Cheers,

Richard

Re: Python2 maintenance will expired

[Alexander Kanavin]

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On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
richard.purdie@linuxfoundation.org> wrote:

> The project has been working hard to remove python2 dependencies where
> we can and in OE-Core, on target usage has been removed and at build
> time, u-boot is one of the main remaining pieces that still needs it.
> Their next release should address that issue.
>
> There is still a need for python2 in HOSTTOOLS but that is also being
> looked at.
>

I can confirm (from local testing) that as far as oe-core is concerned,
u-boot is actually the last piece, and after it's been moved to use py3,
py2 can be removed entirely, including a link in HOSTTOOLS, and native and
target recipes.

The situation in other layers, particularly meta-oe is less than optimal
though. Any help is appreciated.

Alex

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Re: Python2 maintenance will expired

[Tom Rini]

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On Thu, Nov 21, 2019 at 12:07:14PM +0100, Alexander Kanavin wrote:
> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
> richard.purdie@linuxfoundation.org> wrote:
> 
> > The project has been working hard to remove python2 dependencies where
> > we can and in OE-Core, on target usage has been removed and at build
> > time, u-boot is one of the main remaining pieces that still needs it.
> > Their next release should address that issue.
> >
> > There is still a need for python2 in HOSTTOOLS but that is also being
> > looked at.
> >
> 
> I can confirm (from local testing) that as far as oe-core is concerned,
> u-boot is actually the last piece, and after it's been moved to use py3,
> py2 can be removed entirely, including a link in HOSTTOOLS, and native and
> target recipes.

And for the slightly wider audience, the v2020.01 release is scheduled for
release on January 6th and Alex has tested the current -rc within
oe-core to confirm we're all good with respect to just using Python 3
now.

-- 
Tom

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Re: Python2 maintenance will expired

[akuster808]

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On 11/21/19 12:42 PM, Tom Rini wrote:
> On Thu, Nov 21, 2019 at 12:07:14PM +0100, Alexander Kanavin wrote:
>> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
>> richard.purdie@linuxfoundation.org> wrote:
>>
>>> The project has been working hard to remove python2 dependencies where
>>> we can and in OE-Core, on target usage has been removed and at build
>>> time, u-boot is one of the main remaining pieces that still needs it.
>>> Their next release should address that issue.
>>>
>>> There is still a need for python2 in HOSTTOOLS but that is also being
>>> looked at.
>>>
>> I can confirm (from local testing) that as far as oe-core is concerned,
>> u-boot is actually the last piece, and after it's been moved to use py3,
>> py2 can be removed entirely, including a link in HOSTTOOLS, and native and
>> target recipes.
> And for the slightly wider audience, the v2020.01 release is scheduled for
> release on January 6th and Alex has tested the current -rc within
> oe-core to confirm we're all good with respect to just using Python 3
> now.

There is a yocto bug tracking this:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13439

- armin

>
>


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Re: [poky] Python2 maintenance will expired

[Junling Zheng]

Thank you, all guys

That sounds great, and I'm looking forward to it.

Thanks,

Junling

On 2019/11/22 4:47, akuster808 wrote:
> 
> 
> On 11/21/19 12:42 PM, Tom Rini wrote:
>> On Thu, Nov 21, 2019 at 12:07:14PM +0100, Alexander Kanavin wrote:
>>> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
>>> richard.purdie@linuxfoundation.org> wrote:
>>>
>>>> The project has been working hard to remove python2 dependencies where
>>>> we can and in OE-Core, on target usage has been removed and at build
>>>> time, u-boot is one of the main remaining pieces that still needs it.
>>>> Their next release should address that issue.
>>>>
>>>> There is still a need for python2 in HOSTTOOLS but that is also being
>>>> looked at.
>>>>
>>> I can confirm (from local testing) that as far as oe-core is concerned,
>>> u-boot is actually the last piece, and after it's been moved to use py3,
>>> py2 can be removed entirely, including a link in HOSTTOOLS, and native and
>>> target recipes.
>> And for the slightly wider audience, the v2020.01 release is scheduled for
>> release on January 6th and Alex has tested the current -rc within
>> oe-core to confirm we're all good with respect to just using Python 3
>> now.
> 
> There is a yocto bug tracking this:
> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13439
> 
> - armin
> 
>>
>>
> 
> 
> 

Re: [poky] Python2 maintenance will expired

[Armpit]

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On 11/21/19 12:35 AM, Richard Purdie wrote:
> Hi,
>
> On Thu, 2019-11-21 at 15:18 +0800, Junling Zheng wrote:
>> Python 2.7 will not be maintained past January 1, 2020 :(
>>
>> Some codes in yocto/poky are not compatible with Python 3.
>>
>> Does yocto/poky have any measures for this?
> The project has been working hard to remove python2 dependencies where
> we can and in OE-Core, on target usage has been removed and at build
> time, u-boot is one of the main remaining pieces that still needs it.
> Their next release should address that issue.
>
> There is still a need for python2 in HOSTTOOLS but that is also being
> looked at.
>
> People with time to work on issues like this are in short supply so any
> help in fixing the remaining issues would be much appreciated.

We have several defects open to track the Python2 issue within core.  We
could use help so please add yourself to a bug you are interested in
getting it resolved. Since this issue seems to be of interest to many
folks, now is your time to shine.

Remove python2 recipe from core:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13640

Remove python2 from HOSTTOOLS:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13641

python-native needs python2 on host:
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13645

u-boot uses python2 :
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13439

Get rid of python2 runtime dependencies for all recipes in oe-core: Fixed
https://bugzilla.yoctoproject.org/show_bug.cgi?id=13549

- Armin

>
> Cheers,
>
> Richard
>


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Re: [poky] Python2 maintenance will expired

[Richard Purdie]

On Thu, 2019-11-21 at 12:07 +0100, Alexander Kanavin wrote:
> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
> richard.purdie@linuxfoundation.org> wrote:
> > The project has been working hard to remove python2 dependencies
> > where
> > we can and in OE-Core, on target usage has been removed and at
> > build
> > time, u-boot is one of the main remaining pieces that still needs
> > it.
> > Their next release should address that issue.
> > 
> > There is still a need for python2 in HOSTTOOLS but that is also
> > being
> > looked at.
> 
> I can confirm (from local testing) that as far as oe-core is
> concerned, u-boot is actually the last piece, and after it's been
> moved to use py3, py2 can be removed entirely, including a link in
> HOSTTOOLS, and native and target recipes.

FWIW I'm tempted to suggest we take a pre-release u-boot into OE-Core
for now until it does come out, letting us proceed with the rest of the
py2 rearrangement...

Cheers,

Richard

Re: [poky] Python2 maintenance will expired

[Khem Raj]

On Fri, Nov 22, 2019 at 10:12 AM Richard Purdie
<richard.purdie@linuxfoundation.org> wrote:
>
> On Thu, 2019-11-21 at 12:07 +0100, Alexander Kanavin wrote:
> > On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
> > richard.purdie@linuxfoundation.org> wrote:
> > > The project has been working hard to remove python2 dependencies
> > > where
> > > we can and in OE-Core, on target usage has been removed and at
> > > build
> > > time, u-boot is one of the main remaining pieces that still needs
> > > it.
> > > Their next release should address that issue.
> > >
> > > There is still a need for python2 in HOSTTOOLS but that is also
> > > being
> > > looked at.
> >
> > I can confirm (from local testing) that as far as oe-core is
> > concerned, u-boot is actually the last piece, and after it's been
> > moved to use py3, py2 can be removed entirely, including a link in
> > HOSTTOOLS, and native and target recipes.
>
> FWIW I'm tempted to suggest we take a pre-release u-boot into OE-Core
> for now until it does come out, letting us proceed with the rest of the
> py2 rearrangement...
>

this should be fine, I think, downside is we might have to ship it if
u-boot upstream does not release in time for spring release but
chances of that happening are low

> Cheers,
>
> Richard
>
>
>
> -=-=-=-=-=-=-=-=-=-=-=-
> Links: You receive all messages sent to this group.
>
> View/Reply Online (#11824): https://lists.yoctoproject.org/g/poky/message/11824
> Mute This Topic: https://lists.yoctoproject.org/mt/61302503/1997914
> Group Owner: poky+owner@lists.yoctoproject.org
> Unsubscribe: https://lists.yoctoproject.org/g/poky/unsub  [raj.khem@gmail.com]
> -=-=-=-=-=-=-=-=-=-=-=-

Re: [poky] Python2 maintenance will expired

[Mark Hatle]

On 11/22/19 12:17 PM, Khem Raj wrote:
> On Fri, Nov 22, 2019 at 10:12 AM Richard Purdie
> <richard.purdie@linuxfoundation.org> wrote:
>>
>> On Thu, 2019-11-21 at 12:07 +0100, Alexander Kanavin wrote:
>>> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
>>> richard.purdie@linuxfoundation.org> wrote:
>>>> The project has been working hard to remove python2 dependencies
>>>> where
>>>> we can and in OE-Core, on target usage has been removed and at
>>>> build
>>>> time, u-boot is one of the main remaining pieces that still needs
>>>> it.
>>>> Their next release should address that issue.
>>>>
>>>> There is still a need for python2 in HOSTTOOLS but that is also
>>>> being
>>>> looked at.
>>>
>>> I can confirm (from local testing) that as far as oe-core is
>>> concerned, u-boot is actually the last piece, and after it's been
>>> moved to use py3, py2 can be removed entirely, including a link in
>>> HOSTTOOLS, and native and target recipes.
>>
>> FWIW I'm tempted to suggest we take a pre-release u-boot into OE-Core
>> for now until it does come out, letting us proceed with the rest of the
>> py2 rearrangement...
>>
> 
> this should be fine, I think, downside is we might have to ship it if
> u-boot upstream does not release in time for spring release but
> chances of that happening are low

I think that is a good idea.. When I looked back in August there were still
support scripts that appeared to be python2.  Also I think other layers
(meta-openembedded) had a bunch of python2 uses in them.

I'm wondering if there needs to be a way to poison 'python' and 'python2'
executables to find these.

--Mark

>> Cheers,
>>
>> Richard
>>
>>
>>
>> -=-=-=-=-=-=-=-=-=-=-=-
>> Links: You receive all messages sent to this group.
>>
>> View/Reply Online (#11824): https://lists.yoctoproject.org/g/poky/message/11824
>> Mute This Topic: https://lists.yoctoproject.org/mt/61302503/1997914
>> Group Owner: poky+owner@lists.yoctoproject.org
>> Unsubscribe: https://lists.yoctoproject.org/g/poky/unsub  [raj.khem@gmail.com]
>> -=-=-=-=-=-=-=-=-=-=-=-
>>
>> -=-=-=-=-=-=-=-=-=-=-=-
>> Links: You receive all messages sent to this group.
>>
>> View/Reply Online (#11825): https://lists.yoctoproject.org/g/poky/message/11825
>> Mute This Topic: https://lists.yoctoproject.org/mt/61302503/3616948
>> Group Owner: poky+owner@lists.yoctoproject.org
>> Unsubscribe: https://lists.yoctoproject.org/g/poky/unsub  [mark.hatle@kernel.crashing.org]
>> -=-=-=-=-=-=-=-=-=-=-=-

Re: [poky] Python2 maintenance will expired

[Tom Rini]

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On Fri, Nov 22, 2019 at 10:17:03AM -0800, Khem Raj wrote:
> On Fri, Nov 22, 2019 at 10:12 AM Richard Purdie
> <richard.purdie@linuxfoundation.org> wrote:
> >
> > On Thu, 2019-11-21 at 12:07 +0100, Alexander Kanavin wrote:
> > > On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
> > > richard.purdie@linuxfoundation.org> wrote:
> > > > The project has been working hard to remove python2 dependencies
> > > > where
> > > > we can and in OE-Core, on target usage has been removed and at
> > > > build
> > > > time, u-boot is one of the main remaining pieces that still needs
> > > > it.
> > > > Their next release should address that issue.
> > > >
> > > > There is still a need for python2 in HOSTTOOLS but that is also
> > > > being
> > > > looked at.
> > >
> > > I can confirm (from local testing) that as far as oe-core is
> > > concerned, u-boot is actually the last piece, and after it's been
> > > moved to use py3, py2 can be removed entirely, including a link in
> > > HOSTTOOLS, and native and target recipes.
> >
> > FWIW I'm tempted to suggest we take a pre-release u-boot into OE-Core
> > for now until it does come out, letting us proceed with the rest of the
> > py2 rearrangement...
> 
> this should be fine, I think, downside is we might have to ship it if
> u-boot upstream does not release in time for spring release but
> chances of that happening are low

Impossibly low.  It's scheduled for January 6th and I can't imagine what
would cause us to be so late as to miss the April release date.  It's
not like I'm suggesting v2020.04 which would be a tight fit :)

-- 
Tom

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Re: [poky] Python2 maintenance will expired

[Alexander Kanavin]

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On Fri, 22 Nov 2019 at 19:11, Armpit <akuster808@gmail.com> wrote:

>
> We have several defects open to track the Python2 issue within core.  We
> could use help so please add yourself to a bug you are interested in
> getting it resolved. Since this issue seems to be of interest to many
> folks, now is your time to shine.
>
> Remove python2 recipe from core:
> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13640
>
> Remove python2 from HOSTTOOLS:
> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13641
>
> python-native needs python2 on host:
> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13645
>
> u-boot uses python2 :
> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13439
>

All three are addressed here:
http://git.yoctoproject.org/cgit/cgit.cgi/poky-contrib/log/?h=akanavin/drop-python2
I'll polish this up a bit, and send the patches in.

TBH, the state of meta-oe should be much more concerning at this point,
py2-less oe-core is pretty much done and dusted.

Alex

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Re: [poky] Python2 maintenance will expired

[Khem Raj]

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On Fri, Nov 22, 2019 at 11:05 AM Alexander Kanavin <alex.kanavin@gmail.com>
wrote:

> On Fri, 22 Nov 2019 at 19:11, Armpit <akuster808@gmail.com> wrote:
>
>>
>> We have several defects open to track the Python2 issue within core.  We
>> could use help so please add yourself to a bug you are interested in
>> getting it resolved. Since this issue seems to be of interest to many
>> folks, now is your time to shine.
>>
>> Remove python2 recipe from core:
>> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13640
>>
>> Remove python2 from HOSTTOOLS:
>> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13641
>>
>> python-native needs python2 on host:
>> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13645
>>
>> u-boot uses python2 :
>> https://bugzilla.yoctoproject.org/show_bug.cgi?id=13439
>>
>
> All three are addressed here:
>
> http://git.yoctoproject.org/cgit/cgit.cgi/poky-contrib/log/?h=akanavin/drop-python2
> I'll polish this up a bit, and send the patches in.
>
> TBH, the state of meta-oe should be much more concerning at this point,
> py2-less oe-core is pretty much done and dusted.
>

I would think contributors will chime in with the packages they care for
and larger distros are also dropping this so there will be help for porters

If we push for removal early in cycle we might get meta-oe in reasonable
shape the end of dev cycle for this release



> Alex
>
> -=-=-=-=-=-=-=-=-=-=-=-
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>
> View/Reply Online (#11829):
> https://lists.yoctoproject.org/g/poky/message/11829
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> raj.khem@gmail.com]
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Re: [poky] Python2 maintenance will expired

[Peter Kjellerstedt]

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It should be trivial to poison python, at least for scripts that use #!/usr/bin/env python. Just add a python wrapper in the scripts directory. (We have done this for pkg-config to find recipes that lack inherit pkg-config.) What to do about scripts that use #!/usr/bin/python, I do not know...

//Peter


-------- Originalmeddelande --------
Från: Mark Hatle <mark.hatle@kernel.crashing.org>
Datum: 2019-11-22 19:37 (GMT+01:00)
Till: Khem Raj <raj.khem@gmail.com>, Richard Purdie <richard.purdie@linuxfoundation.org>
Kopia: Alexander Kanavin <alex.kanavin@gmail.com>, Junling Zheng <zhengjunling@huawei.com>, Poky Project <poky@yoctoproject.org>, Wang Nan <wangnan0@huawei.com>
Ämne: Re: [poky] Python2 maintenance will expired



On 11/22/19 12:17 PM, Khem Raj wrote:
> On Fri, Nov 22, 2019 at 10:12 AM Richard Purdie
> <richard.purdie@linuxfoundation.org> wrote:
>>
>> On Thu, 2019-11-21 at 12:07 +0100, Alexander Kanavin wrote:
>>> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
>>> richard.purdie@linuxfoundation.org> wrote:
>>>> The project has been working hard to remove python2 dependencies
>>>> where
>>>> we can and in OE-Core, on target usage has been removed and at
>>>> build
>>>> time, u-boot is one of the main remaining pieces that still needs
>>>> it.
>>>> Their next release should address that issue.
>>>>
>>>> There is still a need for python2 in HOSTTOOLS but that is also
>>>> being
>>>> looked at.
>>>
>>> I can confirm (from local testing) that as far as oe-core is
>>> concerned, u-boot is actually the last piece, and after it's been
>>> moved to use py3, py2 can be removed entirely, including a link in
>>> HOSTTOOLS, and native and target recipes.
>>
>> FWIW I'm tempted to suggest we take a pre-release u-boot into OE-Core
>> for now until it does come out, letting us proceed with the rest of the
>> py2 rearrangement...
>>
>
> this should be fine, I think, downside is we might have to ship it if
> u-boot upstream does not release in time for spring release but
> chances of that happening are low

I think that is a good idea.. When I looked back in August there were still
support scripts that appeared to be python2.  Also I think other layers
(meta-openembedded) had a bunch of python2 uses in them.

I'm wondering if there needs to be a way to poison 'python' and 'python2'
executables to find these.

--Mark

>> Cheers,
>>
>> Richard
>>
>>
>>
>> -=-=-=-=-=-=-=-=-=-=-=-
>> Links: You receive all messages sent to this group.
>>
>> View/Reply Online (#11824): https://lists.yoctoproject.org/g/poky/message/11824
>> Mute This Topic: https://lists.yoctoproject.org/mt/61302503/1997914
>> Group Owner: poky+owner@lists.yoctoproject.org
>> Unsubscribe: https://lists.yoctoproject.org/g/poky/unsub  [raj.khem@gmail.com]
>> -=-=-=-=-=-=-=-=-=-=-=-
>>
>> -=-=-=-=-=-=-=-=-=-=-=-
>> Links: You receive all messages sent to this group.
>>
>> View/Reply Online (#11825): https://lists.yoctoproject.org/g/poky/message/11825
>> Mute This Topic: https://lists.yoctoproject.org/mt/61302503/3616948
>> Group Owner: poky+owner@lists.yoctoproject.org
>> Unsubscribe: https://lists.yoctoproject.org/g/poky/unsub  [mark.hatle@kernel.crashing.org]
>> -=-=-=-=-=-=-=-=-=-=-=-

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Re: [poky] Python2 maintenance will expired

[Ross Burton]

On 24/11/2019 10:29, Peter Kjellerstedt wrote:
> It should be trivial to poison python, at least for scripts that use 
> #!/usr/bin/env python. Just add a python wrapper in the scripts 
> directory. (We have done this for pkg-config to find recipes that lack 
> inherit pkg-config.) What to do about scripts that use 
> #!/usr/bin/python, I do not know...

Last week I built oe-core core-image-sato in a container with no Python2 
installed at all.  u-boot was the only failure.

Ross

Re: [poky] Python2 maintenance will expired

[Junling Zheng]

On 2019/11/22 4:42, Tom Rini wrote:
> On Thu, Nov 21, 2019 at 12:07:14PM +0100, Alexander Kanavin wrote:
>> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
>> richard.purdie@linuxfoundation.org> wrote:
>>
>>> The project has been working hard to remove python2 dependencies where
>>> we can and in OE-Core, on target usage has been removed and at build
>>> time, u-boot is one of the main remaining pieces that still needs it.
>>> Their next release should address that issue.
>>>
>>> There is still a need for python2 in HOSTTOOLS but that is also being
>>> looked at.
>>>
>>
>> I can confirm (from local testing) that as far as oe-core is concerned,
>> u-boot is actually the last piece, and after it's been moved to use py3,
>> py2 can be removed entirely, including a link in HOSTTOOLS, and native and
>> target recipes.
> 
> And for the slightly wider audience, the v2020.01 release is scheduled for
> release on January 6th and Alex has tested the current -rc within
> oe-core to confirm we're all good with respect to just using Python 3
> now.
> 

Hi,

Is the "v2020.01" released? And, what's the name of this release?

Thanks
Junling

>>

Re: [poky] Python2 maintenance will expired

[Tom Rini]

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On Thu, Feb 06, 2020 at 10:29:30AM +0800, Junling Zheng wrote:
> On 2019/11/22 4:42, Tom Rini wrote:
> > On Thu, Nov 21, 2019 at 12:07:14PM +0100, Alexander Kanavin wrote:
> >> On Thu, 21 Nov 2019 at 09:39, Richard Purdie <
> >> richard.purdie@linuxfoundation.org> wrote:
> >>
> >>> The project has been working hard to remove python2 dependencies where
> >>> we can and in OE-Core, on target usage has been removed and at build
> >>> time, u-boot is one of the main remaining pieces that still needs it.
> >>> Their next release should address that issue.
> >>>
> >>> There is still a need for python2 in HOSTTOOLS but that is also being
> >>> looked at.
> >>>
> >>
> >> I can confirm (from local testing) that as far as oe-core is concerned,
> >> u-boot is actually the last piece, and after it's been moved to use py3,
> >> py2 can be removed entirely, including a link in HOSTTOOLS, and native and
> >> target recipes.
> > 
> > And for the slightly wider audience, the v2020.01 release is scheduled for
> > release on January 6th and Alex has tested the current -rc within
> > oe-core to confirm we're all good with respect to just using Python 3
> > now.
> > 
> 
> Hi,
> 
> Is the "v2020.01" released? And, what's the name of this release?

Yes, v2020.01 U-Boot was released back on January 6th, 2020.  There is
no codename for it.

-- 
Tom

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