bayesim has been most thoroughly tested in Python 3.6.
To install bayesim simply type
pip install bayesim -r https://raw.githubusercontent.com/PV-Lab/bayesim/master/requirements.txt
(the extra flag is to make sure you get the version of deepdish that works)
For more details on both usage methods described below, see the Manual.
The easiest way to learn how bayesim works is by stepping through one of the Examples, which have well-commented Jupyter notebooks associated with them and can be run in binder with no need to install Python, bayesim, or any of its dependencies locally.
If you are comfortable coding in Python, these examples will also make it clear how to script using bayesim.
A command line interface will be implemented in a future release!