Bug in colorbar labeling

Could you test this with 0.63 and if the problem persists post

    >> a minimal script that exposes the bug?

    > In matplotlib-0.63.0, I can't even get the examples
    > pcolor_demo.py and pcolor_demo2.py to work properly. My
    > code mimics these examples closely. Once they are working
    > again, I will send you an example of the colorbar tick
    > format issue.

Strange. pcolor_demo.py and pcolor_demo2.py work fine for me on linux
and win32.

Try rm -rf site-packages/matplotlib and the 'build' dir of your
matplotlib install tree, and reinstall.

What, by the way, does it mean to "not work properly". Is this a
crash? Note an image interpolation bug was fixed in 0.63.0 which will
cause the axes limits to be a little different for imshow calls than
they were before. Earlier versions of matplotlib set the viewlim to
hide the edge artifacts, which no longer exist.

JDH

Try rm -rf site-packages/matplotlib and the 'build' dir of your
matplotlib install tree, and reinstall.

This worked. I didn't realize I had to delete the
site-packages/matplotlib before installing over an old version.