copying lib/cartopy/mpl/geocollection.py -> build/lib.linux-x86_64-3.8/cartopy/mpl copying lib/cartopy/mpl/slippy_image_artist.py -> build/lib.linux-x86_64-3.8/cartopy/mpl copying lib/cartopy/mpl/patch.py -> build/lib.linux-x86_64-3.8/cartopy/mpl copying lib/cartopy/mpl/geoaxes.py -...
Having just upgraded to Big Sur and trying to install Pillow into Python 3.6 using pip, I also see that the binary wheels are not being recognised. Looking around, this seems to be a wider problem than just Pillow. pypa/pip#9138 (comment) The cause is clear, pip is not seeing a wheel...