Change to a more liberal license?

[mgeier]

Is this project using code that forces you to use the GPL?

If not, you should consider using a more liberal license. Using the GPL is quite uncommon in the Python community.

[chohner]

GPL was the license of the original Matlab codebase and seemed like the safest route to start on. Some of the data used in the examples might also fall under that license

[mgeier]

The safest route is not necessarily the best route ...

Please note that changing the license now is easy, but later, when there are more contributors and stakeholders, it gets harder.

If you are porting the Matlab code manually to Python, I don't think that's a problem (but IANAL).
Also, Python will allow you to implement many things more elegantly and soon your code will not have much in common with its Matlab counterpart anymore.

It is questionable if the copyright even applies to the data you are mentioning.
To be on the safe side, you should not include it in the repository and instead download it on demand.
Or you could just create example data on your own.
Or you could ask the original author to release it under a more liberal license.

[mgeier]

Resolved by #7.