py-matplotlib-basemap 1.1.0_0 incompatible with matplotlib 3.0.1_0

[EJFielding (Eric Fielding)]

The present version of matplotlib-basemap is trying to import something that seems to be no longer present in matplotlib. These are the versions that I have installed:

py36-matplotlib-basemap @1.1.0_0
py36-matplotlib @3.0.1_0+cairo+webagg (active)

This is the last part of my error trace:

    import mpl_toolkits.basemap as basemap
  File "/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/mpl_toolkits/basemap/__init__.py", line 17, in <module>
    from matplotlib.cbook import is_scalar, dedent
ImportError: cannot import name 'is_scalar'

[EJFielding (Eric Fielding)]

I found this on the Basemap Github (​https://github.com/matplotlib/basemap/issues/424). The issue was fixed in release 1.2.0 of Basemap.

[EJFielding (Eric Fielding)]

I don't see anybody listed as maintainer for the py36-matplotlib-basemap, so I don't know who to "cc:" on this. The py36-matplotlib port was updated to version 3.0.2_0, and the basemap module version 1.1.0 is still incompatible. One one of my Macs, I was able to activate the older version of py36-matplotlib, but on the other I already ran "port reclaim" and deleted it so I can't run my Python code that tries to import the basemap module. I tried a quick fix to the

/opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/mpl_toolkits/basemap/__init__.py

code by deleting the import of "is_scalar", but it then failed further down. It seems that the only fix is to update the Basemap code do 1.2.0 or later.

[reneeotten (Renee Otten)]

hi Eric,

it seems that your diagnosis is correct and that updating the port to 1.2.0 fixes the issue. I updated the port in ​PR3119, it passes the tests and does not throw an error anymore when you import the package. Besides that I have no knowledge of the package and don't really know how to test anything else - but I hope this helps.

[reneeotten <reneeotten@…>]

In 9385b63054fcddb8dfa47b0c206b9b374fd72247/macports-ports (master):

py-matplotlib-basemap: update to 1.2.0

• add py37 subport
• update dependencies
• enable tests

Closes: #57562

[EJFielding (Eric Fielding)]

Hi Renee,

Thanks so much for the update of Basemap to 1.2. Now it works for me again.