On 13 September 2016 at 19:00, Paul Moore <p.f.mo...@gmail.com> wrote:
> [...] > > I'm not honestly sure how big the "installing while a process is > running" issue would be - I did a few simple experiments and couldn't > immediately trigger weirdness, but I believe it can happen. And things > get significantly worse if we allow upgrades from the Python prompt > rather than just installs (e.g., if you have already imported > something from the old version and then upgrade). > The only weirdness on install I can imagine would happen is if the installation creates `.pth` files, as those wouldn't be re-read by the currently running Python. The only package I remember having these was PIL, which can't be installed by pip anyway. Pillow, the PIL fork, doesn't use .pth files. (easy_install creates and manages .pth files, but if you're using setuptools APIs to install packages from inside a running process then 1. you already have a system to automatically make the packages available in your namespace and 2. you know, or should know, what you're getting into). Overall, it'd probably be a nice thing to have, but it's nowhere near > as simple as it seems at first glance. > Paul Considering that installing a package and importing a package are two very different things, I don't see why we couldn't handle the simple case of installing the package for the first time with a nice API. Just document the usual caveat emptors. Cheers, Leo
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