This sounds like a great idea, but I've seen stuff like this done before,
and it never ends well. You end up with a gargantuan-sized rabbit hole,
since running a basic script could now involve using an internet connection
and potentially root permissions.
IF one were to go this route, I prefer bundling a `requirements.txt` into
the distribution and then doing something like this in the script:
import pkgcheck
pkgcheck.check_requirements('requirements.txt')
If any of the requirements were missing, then something like this would
happen:
Traceback (most recent call last):
...
MissingPackageError: This script requires package(s) which are not
installed: mypackage>=1.0, other_package
That way, you don't get the weird import errors, but you don't have to
worry about all the subtleties of automatic downloading.
--
Ryan
[ERROR]: Your autotools build scripts are 200 lines longer than your
program. Something’s wrong.
http://kirbyfan64.github.io/
On Sep 19, 2016 11:26 AM, "אלעזר" <elaz...@gmail.com> wrote:
> Many proposals to add something to stdlib are rejected here with the
> suggestion to add such library to pypi first. As noted by someone, pypi is
> not as reachable as stdlib, and one should install that package first,
> which many people don't know how. Additionally, there is no natural
> distinction between 3rd party dependencies and in-project imports (at least
> in tiny projects).
>
> This can be made easier if the first line of the program will declare the
> required library, and executing it will try to download and install that
> library if it is not installed yet. Additionally, the 3rd party
> dependencies will be more explicit, and editors can then allow you to
> search for them as you type.
>
> Of course it is *not* an alternative for real dependency management, but
> it will ease the burden on small scripts and tiny projects - which today
> simply break with errors that many users does not understand, instead of
> simply asking permission to install the dependency.
>
> Elazar
>
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