If I read [this](https://packaging.python.org/discussions/wheel-vs-egg/) correctly, then the egg format is something one should not use anymore. Instead, one should use the wheels format. [Others](https://stackoverflow.com/a/2051195/562769) seem to read this the same way.

With this assumption: Is `zip_safe` relevant for any other distribution format than egg?

What I found
------------

According to [this](https://setuptools.readthedocs.io/en/latest/setuptools.html#including-data-files):

> 
> A boolean (True or False) flag specifying whether the project can be safely installed and run from a zip file. If this argument is not supplied, the bdist\_egg command will have to analyze all of your project’s contents for possible problems each time it builds an egg.
> 
> 
> 

Setuptools does not mention wheels. So I guess it is not relevant for wheels. So if I don't build eggs, I don't need this?

But then, if I install packages with `pip install -e .`, it seems as if it creates an egg file (well, an `[package name].egg-info` )... so maybe egg isn't outdated, even with Python 3.8?