TypeError: use() got an unexpected keyword argument 'warn' when importing matplotlib

Question

I am attempting to learn R markdown / notebook to implement chunks of code which are R and Python. I can use R to a reasonable standard, but I am new to Python. I have downl

Answer 1

I had the exact same error when using reticulate and matplotlib.

I fixed it by downgrading my matplotlib version, e.g.:

pip install matplotlib==3.2  

You can verify that matplotlib has been downgraded by running pip freeze and finding the matplotlib entry. It should look like matplotlib==3.2.0. (maybe try doing this from r, so you can be sure that you're working with the correct python installation).

I think this issue is caused by the 'warn' parameter being removed from a matplotlib function in recent versions of matplotlib, and R/reticulate assumes the older behaviour of the function.