FPL is a Python wrapper for the FPL API created by 
Although I haven't played FPL myself, I see that the project have a potential. Amos updated docs and added a disclaimer that contributions are welcome. So I wanted to try it myself. Unfortunately, there were a few hiccups, which made the first steps rather inconvenient.
One issue was that there were missing modules after installation with pip. I suppose it was a result of overlooking the version number; thus the code did not update in the PyPi repository. Another issue was that I couldn't run tests locally since they required credentials. Furthermore, when I started going through the code, I realised that some information is available to the player only, which means that two different people couldn't get the same result unless they had the same credentials. We all know that sharing credentials publicly is not a good idea.
For that reason, I decided to help a bit to update the tests so that they can be run locally without the credentials dependency. There is still some work to do, but I'd say the weak points were improved.
Tests
The primary goal of contributing to the FPL wrapper was to run the tests without issues. There was a basic test suite which covered most of the functionality. In most cases, it tested the expected outcome of successful cases.
Therefore, I added some more tests also to test the actual implementation and to abstract HTTP requests with mocks. The wanted result is clear, to have passing tests.
Bug Fixes
When I was rewriting the tests, I found out that the logic of some functions had minor flaws that could return unwanted results. Moreover, the code contained some of a deprecated syntax.
In the example above, a logic flow was fixed. Before, the method returned the whole history if _transfers was set even though we wanted only history for a specific game week.