xdrlib3 install error on RHEL 8.10

xdrlib3 install error on RHEL 8.10

[Chuck Lever]

Hi Jeff / Scott -

I'm setting up RHEL 8.10 test runners to test linux-5.4.y, and ran into
this issue with the pynfs playbook:


TASK [pynfs : Install xdrlib3]
*****************************************************************************************************************
task path:
/home/cel/src/kdevops/buildbot-configs/playbooks/roles/pynfs/tasks/install-deps/redhat/main.yml:27
fatal: [pynfs-nfsd]: FAILED! => {
    "changed": false,
    "cmd": [
        "/usr/bin/python3",
        "-m",
        "pip.__main__",
        "install",
        "xdrlib3"
    ]
}

MSG:

stdout: Collecting xdrlib3

:stderr:   Could not find a version that satisfies the requirement
xdrlib3 (from versions: )
No matching distribution found for xdrlib3


PLAY RECAP
*************************************************************************************************************************************
pynfs-nfsd                 : ok=26   changed=7    unreachable=0
failed=1    skipped=21   rescued=0    ignored=0


-- 
Chuck Lever

Re: xdrlib3 install error on RHEL 8.10

[Jeff Layton]

On Sun, 2025-08-17 at 16:42 -0400, Chuck Lever wrote:
> Hi Jeff / Scott -
> 
> I'm setting up RHEL 8.10 test runners to test linux-5.4.y, and ran into
> this issue with the pynfs playbook:
> 
> 
> TASK [pynfs : Install xdrlib3]
> *****************************************************************************************************************
> task path:
> /home/cel/src/kdevops/buildbot-configs/playbooks/roles/pynfs/tasks/install-deps/redhat/main.yml:27
> fatal: [pynfs-nfsd]: FAILED! => {
>     "changed": false,
>     "cmd": [
>         "/usr/bin/python3",
>         "-m",
>         "pip.__main__",
>         "install",
>         "xdrlib3"
>     ]
> }
> 
> MSG:
> 
> stdout: Collecting xdrlib3
> 
> :stderr:   Could not find a version that satisfies the requirement
> xdrlib3 (from versions: )
> No matching distribution found for xdrlib3
> 
> 
> PLAY RECAP
> *************************************************************************************************************************************
> pynfs-nfsd                 : ok=26   changed=7    unreachable=0
> failed=1    skipped=21   rescued=0    ignored=0
> 


Weird. If you ssh into the box and run 'pip install xdrlib3', does it
work?
 
-- 
Jeff Layton <jlayton@kernel.org>

Re: xdrlib3 install error on RHEL 8.10

[Scott Mayhew]

Re-sending because my outbound email was broken apparently.

On Mon, 18 Aug 2025, Scott Mayhew wrote:

> On Sun, 17 Aug 2025, Jeff Layton wrote:
> 
> > On Sun, 2025-08-17 at 16:42 -0400, Chuck Lever wrote:
> > > Hi Jeff / Scott -
> > > 
> > > I'm setting up RHEL 8.10 test runners to test linux-5.4.y, and ran into
> > > this issue with the pynfs playbook:
> > > 
> > > 
> > > TASK [pynfs : Install xdrlib3]
> > > *****************************************************************************************************************
> > > task path:
> > > /home/cel/src/kdevops/buildbot-configs/playbooks/roles/pynfs/tasks/install-deps/redhat/main.yml:27
> > > fatal: [pynfs-nfsd]: FAILED! => {
> > >     "changed": false,
> > >     "cmd": [
> > >         "/usr/bin/python3",
> > >         "-m",
> > >         "pip.__main__",
> > >         "install",
> > >         "xdrlib3"
> > >     ]
> > > }
> > > 
> > > MSG:
> > > 
> > > stdout: Collecting xdrlib3
> > > 
> > > :stderr:   Could not find a version that satisfies the requirement
> > > xdrlib3 (from versions: )
> > > No matching distribution found for xdrlib3
> > > 
> > > 
> > > PLAY RECAP
> > > *************************************************************************************************************************************
> > > pynfs-nfsd                 : ok=26   changed=7    unreachable=0
> > > failed=1    skipped=21   rescued=0    ignored=0
> > > 
> > 
> > 
> > Weird. If you ssh into the box and run 'pip install xdrlib3', does it
> > work?
> 
> RHEL 8 uses Python 3.6.3, which still has xdrlib (which was deprecated
> in 3.11 and removed in 3.13).
> 
> If you run 'pip --verbose install xdrlib3', you'll see that it requires
> the python version to be between 3.7 and 4.0.
> 
> >  
> > -- 
> > Jeff Layton <jlayton@kernel.org>
> > 

Re: xdrlib3 install error on RHEL 8.10

[Chuck Lever]

On 8/18/25 12:29 PM, Scott Mayhew wrote:
> Re-sending because my outbound email was broken apparently.
> 
> On Mon, 18 Aug 2025, Scott Mayhew wrote:
> 
>> On Sun, 17 Aug 2025, Jeff Layton wrote:
>>
>>> On Sun, 2025-08-17 at 16:42 -0400, Chuck Lever wrote:
>>>> Hi Jeff / Scott -
>>>>
>>>> I'm setting up RHEL 8.10 test runners to test linux-5.4.y, and ran into
>>>> this issue with the pynfs playbook:
>>>>
>>>>
>>>> TASK [pynfs : Install xdrlib3]
>>>> *****************************************************************************************************************
>>>> task path:
>>>> /home/cel/src/kdevops/buildbot-configs/playbooks/roles/pynfs/tasks/install-deps/redhat/main.yml:27
>>>> fatal: [pynfs-nfsd]: FAILED! => {
>>>>     "changed": false,
>>>>     "cmd": [
>>>>         "/usr/bin/python3",
>>>>         "-m",
>>>>         "pip.__main__",
>>>>         "install",
>>>>         "xdrlib3"
>>>>     ]
>>>> }
>>>>
>>>> MSG:
>>>>
>>>> stdout: Collecting xdrlib3
>>>>
>>>> :stderr:   Could not find a version that satisfies the requirement
>>>> xdrlib3 (from versions: )
>>>> No matching distribution found for xdrlib3
>>>>
>>>>
>>>> PLAY RECAP
>>>> *************************************************************************************************************************************
>>>> pynfs-nfsd                 : ok=26   changed=7    unreachable=0
>>>> failed=1    skipped=21   rescued=0    ignored=0
>>>>
>>>
>>>
>>> Weird. If you ssh into the box and run 'pip install xdrlib3', does it
>>> work?
>>
>> RHEL 8 uses Python 3.6.3, which still has xdrlib (which was deprecated
>> in 3.11 and removed in 3.13).
>>
>> If you run 'pip --verbose install xdrlib3', you'll see that it requires
>> the python version to be between 3.7 and 4.0.

So the pynfs playbook should avoid running pip on RHEL releases prior to
RHEL 9 -- or at least the playbook should check the python version
before attempting "pip install".

But will the tip of pynfs run on those releases?


-- 
Chuck Lever