I’m not at my computer, but does ``pip install —no-clean —build <insert build dir>`` make this work?
On November 5, 2015 at 5:25:16 PM, Ralf Gommers ([email protected]) wrote: > On Tue, Nov 3, 2015 at 6:10 PM, Chris Barker - NOAA Federal < > [email protected]> wrote: > > > >> I'm not talking about in place installs, I'm talking about e.g. > > building a > > >> wheel and then tweaking one file and rebuilding -- traditionally build > > >> systems go to some effort to keep track of intermediate artifacts and > > reuse > > >> them across builds when possible, but if you always copy the source tree > > >> into a temporary directory before building then there's not much the > > build > > >> system can do. > > > > This strikes me as an optimization -- is it an important one? > > > > Yes, I think it is. At least if we want to move people towards `pip install > .` instead of `python setup.py`. > > > > If I'm doing a lot of tweaking and re-running, I'm usually in develop mode. > > > > Everyone has a slightly different workflow. What if you install into a > bunch of different venvs between tweaks? The non-caching for a package like > scipy pushes rebuild time from <30 sec to ~10 min. > > > > I can see that when you build a wheel, you may build it, test it, > > discover an wheel-specific error, and then need to repeat the cycle -- > > but is that a major use-case? > > > > That being said, I have been pretty frustrated debugging conda-build > > scripts -- there is a lot of overhead setting up the build environment > > each time you do a build... > > > > But with wheel building there is much less overhead, and far fewer > > complications requiring the edit-build cycle. > > > > And couldn't make-style this-has-already-been-done checking happen > > with a copy anyway? > > > > The whole point of the copy is that it's a clean environment. Pip currently > creates tempdirs and removes them when it's done building. So no. > > Ralf > _______________________________________________ > Distutils-SIG maillist - [email protected] > https://mail.python.org/mailman/listinfo/distutils-sig > ----------------- Donald Stufft PGP: 0x6E3CBCE93372DCFA // 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA _______________________________________________ Distutils-SIG maillist - [email protected] https://mail.python.org/mailman/listinfo/distutils-sig
