No module named 'PIL'

[theo-allnutt-bioinformatics]

Installing pil / pillow / image, made no difference to this error.

kat hist -m27 test.fastq
Kmer Analysis Toolkit (KAT) V2.4.2

Running KAT in HIST mode

Input 1 is a sequence file. Counting kmers for input 1 (test.fastq) ... done. Time taken: 6.7s

Bining kmers ... done. Time taken: 2.2s

Merging counts ... done. Time taken: 0.0s

Saving results to disk ... done. Time taken: 0.0s

Creating plot ...Traceback (most recent call last):
File "//g/data/if89/apps/kat/2.4.2/share/kat/scripts/kat/plot/spectra_hist.py", line 6, in
from misc import *
File "/g/data/if89/apps/kat/2.4.2/share/kat/scripts/kat/plot/misc.py", line 2, in
import matplotlib
File "/home/554/ta0341/.local/lib/python3.9/site-packages/matplotlib/init.py", line 113, in
from . import _api, _version, cbook, _docstring, rcsetup
File "/home/554/ta0341/.local/lib/python3.9/site-packages/matplotlib/rcsetup.py", line 27, in
from matplotlib.colors import Colormap, is_color_like
File "/home/554/ta0341/.local/lib/python3.9/site-packages/matplotlib/colors.py", line 51, in
from PIL import Image
ModuleNotFoundError: No module named 'PIL'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "//g/data/if89/apps/kat/2.4.2/share/kat/scripts/kat/plot/spectra_hist.py", line 8, in
from kat.plot.misc import *
File "//g/data/if89/apps/kat/2.4.2/share/kat/scripts/kat/plot/misc.py", line 2, in
import matplotlib
File "/home/554/ta0341/.local/lib/python3.9/site-packages/matplotlib/init.py", line 113, in
from . import _api, _version, cbook, _docstring, rcsetup
File "/home/554/ta0341/.local/lib/python3.9/site-packages/matplotlib/rcsetup.py", line 27, in
from matplotlib.colors import Colormap, is_color_like
File "/home/554/ta0341/.local/lib/python3.9/site-packages/matplotlib/colors.py", line 51, in
from PIL import Image
ModuleNotFoundError: No module named 'PIL'
Time taken: 0.3s

KAT HIST completed.
Total runtime: 9.3s

../lib/include/kat/pyhelper.hpp(158): Throw in function void kat::PyHelper::execute(std::string, int, char**)
Dynamic exception type: boost::exception_detail::clone_implkat::KatPythonException
std::exception::what: std::exception
[kat::KatPythonError*] = Unexpected python error