[TIP] tox vs buildout

[holger krekel]

On Tue, Dec 20, 2011 at 17:04 +0000, Chris Withers wrote:
> On 16/12/2011 22:49, holger krekel wrote:
> >>What would work with tox? Can I pip install from a requirements file
> >>to get my test dependencies to be installed? If so, what should I
> >>put in my tox.ini to make sure I install into the right tox
> >>virtualenv?
> >
> >usually you would specify "deps=" in the testenv to multiline-list your
> >dependencies.
> 
> Okay, I've made tox.ini the source for testing dependencies and now
> build the test extra from it in setup.py using ConfigParser.
> 
> It appears that the pip installation tox uses will only pick
> released packages, while easy_install picks beta releases. I use
> stuff in Mock 0.8.0bx, how can I get that package to be used by tox?

No clue.  Maybe pip has an optional similar behaviour?
If so we could use it by default.

> Also, it looks like Tox does --no-deps when installing the package:
> 
> ../bin/pip install
> --download-cache=/Users/chris/LocalGIT/testfixtures/.tox/_download
> -U --no-deps ../../../dist/testfixtures-2.3.3.tar.gz >5.log
> 
> Why would it do that?! I *really* want my packages' dependencies
> installed...

When re-using an existing virtualenv "--no-deps" is used to avoid
re-checking all the dependencies.  To avoid this you can use "--recreate".

best,
holger

> >testenv-setting: changedir=XYZ, see also http://tox.testrun.org/latest/config.html
> 
> Okay, done, and appears to work :-)
> 
> >>Also, why is Tox using
> >>Users/chris/buildout-eggs/virtualenv-1.7-py2.6.egg/virtualenv.py ?
> >
> >I am not sure.  What would you expect to see used instead of this file?
> 
> Ah, my bad, this is installed by buildout, as vritualenv is a
> dependency of tox :-)
> 
> >Does a raw virtualenv invocation with the same arguments as above work?
> 
> Hmm, nope, I'll raise it with Enthought...
> 
> Chris
> 
> -- 
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