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Clark,

I  adjusted the version of greenlet/eventlet as required by other modules.
here is the output:

ImportError: No module named dnskeybase

sh-4.2# yum list installed | grep "greenlet\|eventlet\|gevent"

python2-eventlet.noarch           0.25.1-1.el7
@local_openstack-tnrp

python2-gevent.x86_64             1.1.2-2.el7
@local_openstack-tnrp

python2-greenlet.x86_64           0.4.12-1.el7
@local_openstack-tnrp

sh-4.2# python2

Python 2.7.5 (default, Oct 30 2018, 23:45:53)

[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> from eventlet import greenpool

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/usr/lib/python2.7/site-packages/eventlet/__init__.py", line 10, in
<module>

    from eventlet import convenience

  File "/usr/lib/python2.7/site-packages/eventlet/convenience.py", line 7,
in <module>

    from eventlet.green import socket

  File "/usr/lib/python2.7/site-packages/eventlet/green/socket.py", line
21, in <module>

    from eventlet.support import greendns

  File "/usr/lib/python2.7/site-packages/eventlet/support/greendns.py",
line 67, in <module>

    setattr(dns.rdtypes, pkg, import_patched('dns.rdtypes.' + pkg))

  File "/usr/lib/python2.7/site-packages/eventlet/support/greendns.py",
line 59, in import_patched

    return patcher.import_patched(module_name, **modules)

  File "/usr/lib/python2.7/site-packages/eventlet/patcher.py", line 126, in
import_patched

    *additional_modules + tuple(kw_additional_modules.items()))

  File "/usr/lib/python2.7/site-packages/eventlet/patcher.py", line 100, in
inject

    module = __import__(module_name, {}, {}, module_name.split('.')[:-1])

ImportError: No module named dnskeybase

>>>

On Thu, Jun 17, 2021 at 10:44 AM Clark Boylan <cboylan at sapwetik.org> wrote:

> On Thu, Jun 17, 2021, at 10:03 AM, Pete Zhang wrote:
> > Not sure if my previous email went through or not. Just resend it.
> >
> > We hit this error during "glance-manage db_sync":
> > *ImportError: cannot import name greenpool.*
> > Any idea what the root cause is and how to fix it?
> > We have the following rpms installed (thought related).
> >
> > `python2-greenlet-0.4.9-1.el7.x86_64.rpm`
> > `python2-eventlet-0.18.4-2.el7.noarch.rpm`
> > `python2-gevent-1.1.2-2.el7.x86_64.rpm`
> >
> >
>
> snip
>
> > Notice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns:
> >   from eventlet import greenpool
> >
> > Notice: /Stage[main]/Neutron::Db::Sync/Exec[neutron-db-sync]/returns:
> > ImportError: cannot import name greenpool
>
> I'm not familiar with the CentOS7 packaging, but as a sanity check I ran
> `pip install greenlet==0.4.9 eventlet==0.18.4` in a python2 virtualenv then
> in a python2 interpreter `from eventlet import greenpool` runs
> successfully. I would try running this import by hand on your system to see
> if you can get any more information. Could be a packaging issue or
> potentially some sort of name collision between script names?
>
> Clark
>
>

-- 

<https://smart.salesforce.com/sig/peiyong.zhang//us_mb/default/link.html>
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