On 01/05/2014 11:25 AM, Jeremy Stanley wrote:
On 2014-01-05 10:47:22 -0500 (-0500), Sean Dague wrote:
[...]
It seems like requirements should be sufficient. Forcing -U to the
latest all the time seems like it would actually mask a ton of
problems, and makes sitepackages = True to be largely useless.
[...]
In fact, I believe it was mostly for the benefit of
sitepackages=True that we started adding it. If my recollection is
correct, faced with a requirement of foo>=3 and a system install of
foo==2 pip under tox would refuse to upgrade to meet the stated
requirement and would instead just use the (non-conforming) version
from the system (system-wide installs of old Jinja on CentOS 6 seems
like where nova ran into this).
Well that's really unfortunate.
So if I understand that correctly there is *no* way to configure tox +
pip to:
* use site packages if they are sufficient to requirements.txt
* install packages into venv if they are not (i.e. only use it if you
have to)
Because that's what I want. And it doesn't seem like a lot to ask.
-Sean
--
Sean Dague
Samsung Research America
[email protected] / [email protected]
http://dague.net
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