Daniel Huppmann

I was going to write that we don't have a test for pd.DataFrame-only-concatenation, but I can't find a test for `concat()` at all... ? Anyway, I think it should be...

If I understand you correctly, you want to have the data only for those model-scenario combinations where data for all regions is present, right? Maybe the following can be helpful:...

But of course, having a strict-filter option could be useful, but the devil is in the details of the implementation, I guess...

Update: it seems that `df.rename(year={2005: 2010})` does to have any effect (any more)...

The *level* argument is passed to https://github.com/IAMconsortium/pyam/blob/83b75423de26e3a322dcd1ea9c61069d234f4dc8/pyam/utils.py#L417 And the docstring of the function clearly states that it can be an int or a str (like `1+`). Fine for me to...

This is indeed an issue related to ixmp4, https://github.com/iiasa/ixmp4. Note that the issue can’t be transferred because it belongs to a different organization. Please close and open a corresponding issue...

Reminder: not sorting the time column may cause confusion when working with the wide timeseries format (e.g., write to xlsx)

Could it be that you first tried to install **pyam** using `pip`, then tried via `conda`? It seems that the conda-install failed given the last line > `[Errno 36] Resource...

Yes, my bad - I didn't get that you already fixed the issue in your PR. But let's leave this topic open anyway as a reminder to revisit the WorldBank-integration...

I can tell you at least one dependency that is not yet released for Python 3.12… https://github.com/iiasa/ixmp4