[PATCH] xen.inc: python 3.12: fix datetime deprecation warning

[PATCH] xen.inc: python 3.12: fix datetime deprecation warning

[Stanley Stanton]

Datetime.UTC seems is a wrapper for datetime.timezone.utc,
which is available on both python 3.10, and python 3.12 (Ubuntu 24.04)
so, opt to use that instead.

Signed-off-by: Stanley Stanton <stanley.stanton@taitcommunications.com>
---
 recipes-extended/xen/xen.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
index dcd281b5..63790f73 100644
--- a/recipes-extended/xen/xen.inc
+++ b/recipes-extended/xen/xen.inc
@@ -151,7 +151,7 @@ def get_build_time_vars(d):
     source_date_epoch = d.getVar('SOURCE_DATE_EPOCH')
     if source_date_epoch is not None:
         import datetime
-        utc_datetime = datetime.datetime.utcfromtimestamp(float(source_date_epoch))
+        utc_datetime =  datetime.datetime.fromtimestamp(float(source_date_epoch), datetime.timezone.utc)
         return " XEN_BUILD_DATE=" + utc_datetime.strftime("%Y-%m-%d") + \
                " XEN_BUILD_TIME=" + utc_datetime.strftime("%H:%M:%S")
     return ""
-- 
2.43.0


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Re: [meta-virtualization] [PATCH] xen.inc: python 3.12: fix datetime deprecation warning

[Bruce Ashfield]

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On Mon, Nov 18, 2024 at 5:32 PM Stanley Stanton via lists.yoctoproject.org
<stanley.stanton=taitcommunications.com@lists.yoctoproject.org> wrote:

> Datetime.UTC seems is a wrapper for datetime.timezone.utc,
> which is available on both python 3.10, and python 3.12 (Ubuntu 24.04)
> so, opt to use that instead.
>

No objection to the patch, but this commit log doesn't actually tell me
what the problem is, so I can't tell what this is fixing.

Bruce



>
> Signed-off-by: Stanley Stanton <stanley.stanton@taitcommunications.com>
> ---
>  recipes-extended/xen/xen.inc | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
> index dcd281b5..63790f73 100644
> --- a/recipes-extended/xen/xen.inc
> +++ b/recipes-extended/xen/xen.inc
> @@ -151,7 +151,7 @@ def get_build_time_vars(d):
>      source_date_epoch = d.getVar('SOURCE_DATE_EPOCH')
>      if source_date_epoch is not None:
>          import datetime
> -        utc_datetime =
> datetime.datetime.utcfromtimestamp(float(source_date_epoch))
> +        utc_datetime =
> datetime.datetime.fromtimestamp(float(source_date_epoch),
> datetime.timezone.utc)
>          return " XEN_BUILD_DATE=" + utc_datetime.strftime("%Y-%m-%d") + \
>                 " XEN_BUILD_TIME=" + utc_datetime.strftime("%H:%M:%S")
>      return ""
> --
> 2.43.0
>
>
> --
>
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> basis of the terms set out at www.taitcommunications.com/email_disclaimer
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Re: [meta-virtualization] [PATCH] xen.inc: python 3.12: fix datetime deprecation warning

[Bruce Ashfield]

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On Mon, Nov 18, 2024 at 9:30 PM Bruce Ashfield via lists.yoctoproject.org
<bruce.ashfield=gmail.com@lists.yoctoproject.org> wrote:

>
>
> On Mon, Nov 18, 2024 at 5:32 PM Stanley Stanton via lists.yoctoproject.org
> <stanley.stanton=taitcommunications.com@lists.yoctoproject.org> wrote:
>
>> Datetime.UTC seems is a wrapper for datetime.timezone.utc,
>> which is available on both python 3.10, and python 3.12 (Ubuntu 24.04)
>> so, opt to use that instead.
>>
>
> No objection to the patch, but this commit log doesn't actually tell me
> what the problem is, so I can't tell what this is fixing.
>

Sorry, what I meant to say (and I said it badly), is that we should capture
the warning that is being thrown, since that is what someone will search
for if they are having the same issue.

We also need to make sure that all of the versions of python (and hosts)
supported by OE core / yocto have the function in question (or does this
just get executed by python3-native and not the host python ? .. I'll have
to check on that tomorrow, I can't recall right now).  Your current commit
log makes me think that it is the host distro python, otherwise, the
version of python in ubuntu 24.04 isn't relevant.

Bruce



>
> Bruce
>
>
>
>>
>> Signed-off-by: Stanley Stanton <stanley.stanton@taitcommunications.com>
>> ---
>>  recipes-extended/xen/xen.inc | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
>> index dcd281b5..63790f73 100644
>> --- a/recipes-extended/xen/xen.inc
>> +++ b/recipes-extended/xen/xen.inc
>> @@ -151,7 +151,7 @@ def get_build_time_vars(d):
>>      source_date_epoch = d.getVar('SOURCE_DATE_EPOCH')
>>      if source_date_epoch is not None:
>>          import datetime
>> -        utc_datetime =
>> datetime.datetime.utcfromtimestamp(float(source_date_epoch))
>> +        utc_datetime =
>> datetime.datetime.fromtimestamp(float(source_date_epoch),
>> datetime.timezone.utc)
>>          return " XEN_BUILD_DATE=" + utc_datetime.strftime("%Y-%m-%d") + \
>>                 " XEN_BUILD_TIME=" + utc_datetime.strftime("%H:%M:%S")
>>      return ""
>> --
>> 2.43.0
>>
>>
>> --
>>
>> This communication is confidential. We only send and receive email on the
>> basis of the terms set out at www.taitcommunications.com/email_disclaimer
>> <http://www.taitcommunications.com/email_disclaimer>
>>
>>
>>
>>
>>
>
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> at its end
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>
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- Thou shalt not follow the NULL pointer, for chaos and madness await thee
at its end
- "Use the force Harry" - Gandalf, Star Trek II

[-- Attachment #2: Type: text/html, Size: 6042 bytes --]

[PATCH v2] xen.inc: python 3.12: fix datetime deprecation warning

[Stanley Stanton]

Parsing xen.inc with a host distro that provides python 3.12 (such as Ubuntu
24.04) generates the following deprecation warning:

DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version.
Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC)

This warning comes from the use of datetime.datetime.utcfromtimestamp()
in get_build_time_vars.

datetime.UTC seems to be a getter wrapper for datetime.timezone.utc,
which is already available on older host distro python versions
(I have tested only with python 3.10 provided by Ubuntu 22.04)
so, opt to use that instead to prevent a breaking change.

Signed-off-by: Stanley Stanton <stanley.stanton@taitcommunications.com>
---
 recipes-extended/xen/xen.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
index dcd281b5..63790f73 100644
--- a/recipes-extended/xen/xen.inc
+++ b/recipes-extended/xen/xen.inc
@@ -151,7 +151,7 @@ def get_build_time_vars(d):
     source_date_epoch = d.getVar('SOURCE_DATE_EPOCH')
     if source_date_epoch is not None:
         import datetime
-        utc_datetime = datetime.datetime.utcfromtimestamp(float(source_date_epoch))
+        utc_datetime =  datetime.datetime.fromtimestamp(float(source_date_epoch), datetime.timezone.utc)
         return " XEN_BUILD_DATE=" + utc_datetime.strftime("%Y-%m-%d") + \
                " XEN_BUILD_TIME=" + utc_datetime.strftime("%H:%M:%S")
     return ""
-- 
2.43.0


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Re: [meta-virtualization] [PATCH v2] xen.inc: python 3.12: fix datetime deprecation warning

[Bruce Ashfield]

v2 is merged to master. Request cherry-picks to any other
branches of interest.

Bruce

In message: [meta-virtualization] [PATCH v2] xen.inc: python 3.12: fix datetime deprecation warning
on 19/11/2024 Stanley Stanton via lists.yoctoproject.org wrote:

> Parsing xen.inc with a host distro that provides python 3.12 (such as Ubuntu
> 24.04) generates the following deprecation warning:
> 
> DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version.
> Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC)
> 
> This warning comes from the use of datetime.datetime.utcfromtimestamp()
> in get_build_time_vars.
> 
> datetime.UTC seems to be a getter wrapper for datetime.timezone.utc,
> which is already available on older host distro python versions
> (I have tested only with python 3.10 provided by Ubuntu 22.04)
> so, opt to use that instead to prevent a breaking change.
> 
> Signed-off-by: Stanley Stanton <stanley.stanton@taitcommunications.com>
> ---
>  recipes-extended/xen/xen.inc | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
> index dcd281b5..63790f73 100644
> --- a/recipes-extended/xen/xen.inc
> +++ b/recipes-extended/xen/xen.inc
> @@ -151,7 +151,7 @@ def get_build_time_vars(d):
>      source_date_epoch = d.getVar('SOURCE_DATE_EPOCH')
>      if source_date_epoch is not None:
>          import datetime
> -        utc_datetime = datetime.datetime.utcfromtimestamp(float(source_date_epoch))
> +        utc_datetime =  datetime.datetime.fromtimestamp(float(source_date_epoch), datetime.timezone.utc)
>          return " XEN_BUILD_DATE=" + utc_datetime.strftime("%Y-%m-%d") + \
>                 " XEN_BUILD_TIME=" + utc_datetime.strftime("%H:%M:%S")
>      return ""
> -- 
> 2.43.0
> 
> 
> -- 
> 
> This communication is confidential. We only send and receive email on the
> basis of the terms set out at www.taitcommunications.com/email_disclaimer 
> <http://www.taitcommunications.com/email_disclaimer>
> 

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Re: [meta-virtualization] [PATCH v2] xen.inc: python 3.12: fix datetime deprecation warning

[Stanley Stanton]

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Hi Bruce,

I'd like to request this patch be cherry-picked to scarthgap.

Thanks,
Stan

________________________________
From: Bruce Ashfield <bruce.ashfield@gmail.com>
Sent: Thursday, November 21, 2024 5:30 PM
To: Stanley Stanton <stanley.stanton@taitcommunications.com>
Cc: meta-virtualization@lists.yoctoproject.org <meta-virtualization@lists.yoctoproject.org>
Subject: Re: [meta-virtualization] [PATCH v2] xen.inc: python 3.12: fix datetime deprecation warning

[You don't often get email from bruce.ashfield@gmail.com. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]

v2 is merged to master. Request cherry-picks to any other
branches of interest.

Bruce

In message: [meta-virtualization] [PATCH v2] xen.inc: python 3.12: fix datetime deprecation warning
on 19/11/2024 Stanley Stanton via lists.yoctoproject.org wrote:

> Parsing xen.inc with a host distro that provides python 3.12 (such as Ubuntu
> 24.04) generates the following deprecation warning:
>
> DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version.
> Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC)
>
> This warning comes from the use of datetime.datetime.utcfromtimestamp()
> in get_build_time_vars.
>
> datetime.UTC seems to be a getter wrapper for datetime.timezone.utc,
> which is already available on older host distro python versions
> (I have tested only with python 3.10 provided by Ubuntu 22.04)
> so, opt to use that instead to prevent a breaking change.
>
> Signed-off-by: Stanley Stanton <stanley.stanton@taitcommunications.com>
> ---
>  recipes-extended/xen/xen.inc | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
> index dcd281b5..63790f73 100644
> --- a/recipes-extended/xen/xen.inc
> +++ b/recipes-extended/xen/xen.inc
> @@ -151,7 +151,7 @@ def get_build_time_vars(d):
>      source_date_epoch = d.getVar('SOURCE_DATE_EPOCH')
>      if source_date_epoch is not None:
>          import datetime
> -        utc_datetime = datetime.datetime.utcfromtimestamp(float(source_date_epoch))
> +        utc_datetime =  datetime.datetime.fromtimestamp(float(source_date_epoch), datetime.timezone.utc)
>          return " XEN_BUILD_DATE=" + utc_datetime.strftime("%Y-%m-%d") + \
>                 " XEN_BUILD_TIME=" + utc_datetime.strftime("%H:%M:%S")
>      return ""
> --
> 2.43.0
>
>
> --
>
> This communication is confidential. We only send and receive email on the
> basis of the terms set out at https://aus01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.taitcommunications.com%2Femail_disclaimer&data=05%7C02%7Cstanley.stanton%40taitcommunications.com%7C031f9b33b39345c39da608dd09e550c8%7Cb9ac1691179e406f90a36d5b9a817466%7C0%7C0%7C638677602708905473%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=Tsw5pm4dYCwVwQAEJAVqa6ChRJKHV%2FyOOLkiLFWo8zE%3D&reserved=0<http://www.taitcommunications.com/email_disclaimer>
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Re: [meta-virtualization] [PATCH] xen.inc: python 3.12: fix datetime deprecation warning

[Stanley Stanton]

[-- Attachment #1: Type: text/plain, Size: 4704 bytes --]

Thanks for the feedback Bruce. To clarify:

  *
Yes, the hosttools Python version is being used for the get_build_time_vars function in xen.inc.
  *
The warning in particular I'm seeing
     *
DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC)
  *
I have only truly tested the backwards compatibility with Ubuntu 22.04, which provides python 3.10.  A brief look also shows that python 3.2 contained datetime.timezone, which is the API used in the patch.

I will send a v2 of this patch describing this information.

Thanks,

Stanley
________________________________
From: Bruce Ashfield <bruce.ashfield@gmail.com>
Sent: Tuesday, November 19, 2024 3:40 PM
To: bruce.ashfield@gmail.com <bruce.ashfield@gmail.com>
Cc: Stanley Stanton <stanley.stanton@taitcommunications.com>; meta-virtualization@lists.yoctoproject.org <meta-virtualization@lists.yoctoproject.org>
Subject: Re: [meta-virtualization] [PATCH] xen.inc: python 3.12: fix datetime deprecation warning

You don't often get email from bruce.ashfield@gmail.com. Learn why this is important<https://aka.ms/LearnAboutSenderIdentification>


On Mon, Nov 18, 2024 at 9:30 PM Bruce Ashfield via lists.yoctoproject.org<http://lists.yoctoproject.org/> <bruce.ashfield=gmail.com@lists.yoctoproject.org<mailto:gmail.com@lists.yoctoproject.org>> wrote:


On Mon, Nov 18, 2024 at 5:32 PM Stanley Stanton via lists.yoctoproject.org<http://lists.yoctoproject.org/> <stanley.stanton=taitcommunications.com@lists.yoctoproject.org<mailto:taitcommunications.com@lists.yoctoproject.org>> wrote:
Datetime.UTC seems is a wrapper for datetime.timezone.utc,
which is available on both python 3.10, and python 3.12 (Ubuntu 24.04)
so, opt to use that instead.

No objection to the patch, but this commit log doesn't actually tell me what the problem is, so I can't tell what this is fixing.

Sorry, what I meant to say (and I said it badly), is that we should capture the warning that is being thrown, since that is what someone will search for if they are having the same issue.

We also need to make sure that all of the versions of python (and hosts) supported by OE core / yocto have the function in question (or does this just get executed by python3-native and not the host python ? .. I'll have to check on that tomorrow, I can't recall right now).  Your current commit log makes me think that it is the host distro python, otherwise, the version of python in ubuntu 24.04 isn't relevant.

Bruce



Bruce



Signed-off-by: Stanley Stanton <stanley.stanton@taitcommunications.com<mailto:stanley.stanton@taitcommunications.com>>
---
 recipes-extended/xen/xen.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/recipes-extended/xen/xen.inc b/recipes-extended/xen/xen.inc
index dcd281b5..63790f73 100644
--- a/recipes-extended/xen/xen.inc
+++ b/recipes-extended/xen/xen.inc
@@ -151,7 +151,7 @@ def get_build_time_vars(d):
     source_date_epoch = d.getVar('SOURCE_DATE_EPOCH')
     if source_date_epoch is not None:
         import datetime
-        utc_datetime = datetime.datetime.utcfromtimestamp(float(source_date_epoch))
+        utc_datetime =  datetime.datetime.fromtimestamp(float(source_date_epoch), datetime.timezone.utc)
         return " XEN_BUILD_DATE=" + utc_datetime.strftime("%Y-%m-%d") + \
                " XEN_BUILD_TIME=" + utc_datetime.strftime("%H:%M:%S")
     return ""
--
2.43.0


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