Ordering of requirements.txt causes a crash upon fresh install.

[jgagneastro]

Trying to install the missing packages directly from requirements.txt with:

pip install -r requirements.txt

Causes a crash because pandas is listed before numpy, causing this error when pandas is being installed:

ModuleNotFoundError: No module named 'numpy'.

There may be further changes required to make the requirements.txt work in a fresh environment, because I then got stuck with the required numpy version not being compatible with the latest Python.