Hi, On Wed, 04 Jan 2023 at 01:37, Zacchaeus Scheffer wrote: > working (pip): keras 2.10.0, h5py 3.7.0 > not working (current guix): keras 2.2.4, h5py 3.6.0 Indeed, it is collateral to ea403bf290f4bf8c7bae314e32dbb90653f92996 --8<---------------cut here---------------start------------->8--- gnu: python-h5py: Update to 3.6.0. * gnu/packages/python-xyz.scm (python-h5py): Update to 3.6.0. [arguments]: Set HDF5_DIR variable instead of patching files. --8<---------------cut here---------------end--------------->8--- Well, the update of Keras to 2.11.0 (the current latest) requires some work. First, fetch from Github instead of PyPI because the sources are not available after v2.6.0; e.g., https://pypi.org/project/keras/2.11.0/#files Then, second adapt the recipe. Do you want to give a try? Cheers, simon