[openstack-dev] olso.config error on running Devstack

Ben Nemec openstack at nemebean.com
Wed Feb 5 16:44:49 UTC 2014


 

On 2014-02-05 09:05, Doug Hellmann wrote: 

> On Tue, Feb 4, 2014 at 5:14 PM, Ben Nemec <openstack at nemebean.com> wrote:
> 
> On 2014-01-08 12:14, Doug Hellmann wrote: 
> 
> On Wed, Jan 8, 2014 at 12:37 PM, Ben Nemec <openstack at nemebean.com> wrote:
> 
> On 2014-01-08 11:16, Sean Dague wrote:
> On 01/08/2014 12:06 PM, Doug Hellmann wrote:
> <snip>
> Yeah, that's what made me start thinking oslo.sphinx should be called
> something else.
> 
> Sean, how strongly do you feel about not installing oslo.sphinx in
> devstack? I see your point, I'm just looking for alternatives to the
> hassle of renaming oslo.sphinx. 
> Doing the git thing is definitely not the right thing. But I guess I got
> lost somewhere along the way about what the actual problem is. Can
> someone write that up concisely? With all the things that have been
> tried/failed, why certain things fail, etc.
 The problem seems to be when we pip install -e oslo.config on the
system, then pip install oslo.sphinx in a venv. oslo.config is
unavailable in the venv, apparently because the namespace package for
o.s causes the egg-link for o.c to be ignored. Pretty much every other
combination I've tried (regular pip install of both, or pip install -e
of both, regardless of where they are) works fine, but there seem to be
other issues with all of the other options we've explored so far.

 We can't remove the pip install -e of oslo.config because it has to be
used for gating, and we can't pip install -e oslo.sphinx because it's
not a runtime dep so it doesn't belong in the gate. Changing the
toplevel package for oslo.sphinx was also mentioned, but has obvious
drawbacks too.

 I think that about covers what I know so far. 

Here's a link dstufft provided to the pip bug tracking this problem:
https://github.com/pypa/pip/issues/3 [1] 
Doug 

This just bit me again trying to run unit tests against a fresh Nova
tree. I don't think it's just me either - Matt Riedemann said he has
been disabling site-packages in tox.ini for local tox runs. We really
need to do _something_ about this, even if it's just disabling
site-packages by default in tox.ini for the affected projects. A
different option would be nice, but based on our previous discussion I'm
not sure we're going to find one. 
Thoughts? 

Is the problem isolated to oslo.sphinx? That is, do we end up with any
configurations where we have 2 oslo libraries installed in different
modes (development and "regular") where one of those 2 libraries is not
oslo.sphinx? Because if the issue is really just oslo.sphinx, we can
rename that to move it out of the namespace package. 

oslo.sphinx is the only one that has triggered this for me so far. I
think it's less likely to happen with the others because they tend to be
runtime dependencies so they get installed in devstack, whereas
oslo.sphinx doesn't because it's a build dep (AIUI anyway). 

> Doug 
> 
>> -Ben

 

Links:
------
[1] https://github.com/pypa/pip/issues/3
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