[TIP] pytest, making a standalone script with extensions
michael at voidspace.org.uk
Mon Dec 5 06:21:37 PST 2011
On 03/12/2011 17:17, francis wrote:
> Hi Michael,
> I appreciate your opinion in that question. Maybe I should have
> hat to ask: witch kind of new problems can arise from doing this,
> and maybe is worth a new thread but well, just to complement the
> info here:
> > In general the answer is no, bundling your dependencies is not
> > considered good practise. It puts code that isn't yours (and shouldn't
> > be modified) into your version control repository
> Modifying the code is sometimes necessary to be able to get a “feature”
> that only one wants (to get it better integrated with the actual
> or to be able to evolute it overtime into another one).
You will regret patching rather than extending every time you have to
merge your changes into a new release...
> > and actively prevents you from getting bug fixes or updates.
> Some times updates bring new features or new dependencies that one
> doesn't wants (or don't integrate very well). I prefer here to actively
> decide if the update is worth (not automatically).
Sure - pin your version in requirements.txt then.
> > One alternative is to run your own "mirror" of pypi for your specific
> > dependencies (it can actually just be a plain directory of files served
> > by Apache), updated from a cron job, and point pip at that. That allows
> > your infrastructure to be completely under your control and not be
> > dependent on an external resource (pypi). You do then have to manage
> > getting updated versions yourself.
> That's a idea to be considered. In general I try to reduce dependencies
> as much as possible (if it can be done with the “included batteries”,
> and having a standalone “test runner” into the repo makes the “checkout
> and test” IMHO easier.
Once your external dependency set is more than one the rationale for
bundling dependencies evaporates.
All the best,
May you do good and not evil
May you find forgiveness for yourself and forgive others
May you share freely, never taking more than you give.
-- the sqlite blessing http://www.sqlite.org/different.html
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