Re: [IBMiOSS] ibm-db and itoolkit into venv

[Craig Richards <craig@xxxxxxxxxxxxxxxx>]

Nice one thanks John that's helpful

On Mon, 1 Apr 2019 at 17:34, John Yeung <gallium.arsenide@xxxxxxxxx> wrote:

> Within the virtual environment, the local site-packages will take
> precedence over the system site-packages. So if the same module name
> appears in both, the local one will be imported.
>
> It sounds like your use case would be satisfied by this. But if you
> need to test what would happen if you remove a package entirely, I
> don't know of a particularly robust or accurate way to do this. I
> think your best bet for this is to create your own stub module with
> the name you're trying to block, and just have nothing in it, and put
> this empty module in your virtual environment's site-packages. (Or,
> instead of being empty, you could make it raise ImportError
> immediately.)
>
> Python provides a lot of introspection. I encourage you to use it. For
> example, if you are not sure whether the virtual environment's
> site-packages is ahead of the system site-packages, fire up Python
> from within the virtual environment, import sys, and check out what
> sys.path is. (That is what I did to confirm my answer to your
> question.)
>
> John Y.
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