Deprecated sklearn and mising module

[ftalamo]

Hi, I have a warining with the SKlearn module : "Warning: The sklearn.neighbors.nearest_centroid module is deprecated in version 0.22 and will be removed in version 0.24. The corresponding classes / functions should instead be imported from sklearn.neighbors. Anything that cannot be imported from sklearn.neighbors is now part of the private API."

Also I have the following error: "Resource punkt not found.
Please use the NLTK Downloader to obtain the resource"

I try to force the download with nltk.download('punkt') but didn't work.

any help?