This is an error on the matplotlib side, verbose was unintentionally removed in matplotlib 2.2.0.
See this issue.
This is fixed from the matplotlib side as of version 2.2.2. (Release here)
If updating is not an option, one less ideal option could be to locate the __init__.py inside the matplotlib folder, and add the line
verbose = Verbose()
after the Verbose() class - that should be around line 384 in the current version.