As I described here, lazy loading external modules can break modules silently, even to other libraries, in weird or unexpected ways. I imagine you're already aware of this.

Given that there doesn't appear to be any reliable solution to this, I think it would be useful to at least document this flaw, so users can at least notice when something like this happens.

To reproduce

import lazy_loader as lazy plt = lazy.load('matplotlib.pyplot') plt # This code can be in an arbitrary module import matplotlib import matplotlib.pyplot matplotlib.pyplot

Gives:

AttributeError: module 'matplotlib' has no attribute 'pyplot'