python3-imageio.noarch: W: explicit-lib-dependency libfreeimage3
You must let rpm find the library dependencies by itself. Do not put unneeded
explicit Requires: tags.

python3-imageio.noarch: W: non-executable-script /usr/lib/python3.6/site-packages/imageio/plugins/_bsdf.py 644 /usr/bin/env python
python3-imageio.noarch: W: non-executable-script /usr/lib/python3.6/site-packages/imageio/plugins/_tifffile.py 644 /usr/bin/python3 
This text file contains a shebang or is located in a path dedicated for
executables, but lacks the executable bits and cannot thus be executed.  If
the file is meant to be an executable script, add the executable bits,
otherwise remove the shebang or move the file elsewhere.

python3-imageio.noarch: W: zero-length /usr/lib/python3.6/site-packages/imageio/resources/shipped_resources_go_here
2 packages and 0 specfiles checked; 0 errors, 4 warnings.