tight_layout.get_renderer() breaks plotHeatmap with matplotlib 3.6

[pauldrinn]

tight_layout.get_renderer() was removed starting from matplotlib 3.6 so plotHeatmap doesn't plot with matplotlib 3.6 installed.

(base) [etekoglu@linuxsrv006 manualqc]$ plotHeatmap -m neg_investigation.mat.gz -o neg_investigation.pdf \
>     --colorList "white,#043565" "white,#043565" "white,red" "white,red" "white,red" \
>     --missingDataColor "white" \
>     --samplesLabel "1" "2" "3" "4" "5" \
>     --regionsLabel "R1" "R2" "R3" "R4" \
>     --sortUsingSamples 1 \
>     --heatmapHeight 15 \
>     --heatmapWidth 5 \
>     --zMin 0 0 0 0 0 --zMax 3 3 1.5 1.5 100 \
>     --yMin -0.5 -0.5 0 0 0 --yMax 3 3 1.5 1.5 150

Samples used for ordering within each group:  [0]
Traceback (most recent call last):
  File "/home/etekoglu/miniconda3/bin/plotHeatmap", line 12, in <module>
    main(args)
  File "/home/etekoglu/miniconda3/lib/python3.8/site-packages/deeptools/plotHeatmap.py", line 874, in main
    plotMatrix(hm,
  File "/home/etekoglu/miniconda3/lib/python3.8/site-packages/deeptools/plotHeatmap.py", line 587, in plotMatrix
    renderer = tl.get_renderer(fig)
AttributeError: module 'matplotlib.tight_layout' has no attribute 'get_renderer'

Downgrading back to matplotlib 3.5.3 fixes the issue.

My versions are:

• deepTools 3.5.1
• Python 3.8.13
• matplotlib 3.6.1