matplotlib: AttributeError: module `unicodedata2` has no attribute `ucnhash_CAPI`

[yunjunz]

Description of the problem

An error occurred on my Mac while running test_smallbaselineApp.py with the freshly installed conda environment. This error did not occur during the circle CI testing and also will disappear if I set a matplotlib <3.5 constrain.

I wrote here for bookkeeping, as I can not robustly re-produce the error.

Here are some relevant posts:

• bpo-42157: Rename unicodedata.ucnhash_CAPI python/cpython#22994
• https://bugs.python.org/issue44418
• [Bug]: savefig pdf produces AttributeError: module 'unicodedata2' has no attribute 'ucnhash_CAPI' with matplotlib 3.5.0 matplotlib/matplotlib#21711

Full script that generated the error

$MINTPY_HOME/tests/test_smallbaselineApp.py --dset FernandinaSenDT128

Full error message

System information

• Operating system: macOS
• Python environment: insar environment described at https://github.com/yunjunz/conda_envs
• Version of MintPy: released version 1.3.2
• Your custom / default template file (if the bug is related to a specific dataset):

[yunjunz]

The issue has been fixed in the upstream of matplotlib.