Aart Goossens

@mpuchowicz Thanks a lot for your input. This helps a lot in thinking about how the interface should be and which features are needed.

I created a WIP PR [here](https://github.com/GoldenCheetah/OpenData/pull/3). It's far from polished but it shows the direction I'm heading. Some of the features: - Download some or all of the activities. Data...

I'm fine with merging my PR now but I suspect some rewriting will happen so do not rely on the stability of the interface for now... I think in the...

> You could make something similar to this. In this way, the user can set it and you have a default location. I think that our default is fine but...

Since I did a complete rewrite of the Python library I am tempted to close this issue even though some of the discussion here (e.g. about Parquet files) have not...

Nice work! And good to see that you're picking up this model first because I think there are many interesting use cases for this (thinking e.g. OpenData). - @sladkovm and...

> On a simple example (which will be in the tests) it seems that Nelder-Mead is the only solver leading to the right parameter. I think that we could simplify...

That's very interesting indeed. Is combining optimizations common practice? I haven't heard of it before. If this is only about a better fit for the `hr_max` I want to mention...

Thanks for all the effort you already put in Guillaume. About your todo's: - `lmfit` to `scipy`: good plan. Using `lmfit` was just laziness, no other valid reason. - I...

I have issues running the tests too. @glemaitre did the setup of the test scripts so maybe he can help with running the tests locally. The error you get is...