Use .items instead (Python 3.11)

I wrote the code below which can be found here

#make a bar graph of the df using Altair
alt.Chart(df).mark_bar().encode(
    x = 'community_board', #x axis is encoded by the Bronx community boards
    y='count()',
)

The graphic appears in Visual Code Notebook however VS and github displays the below error message

/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/altair/utils/core.py:317: FutureWarning: iteritems is deprecated and will be removed in a future version. Use .items instead.
  for col_name, dtype in df.dtypes.iteritems():

Thoughts?

Please follow these steps to make it more efficient to solve your issue:

• Since Altair is a Python wrapper around the Vega-Lite visualization grammar, most bugs should be reported directly to Vega-Lite. You can click the Action Button of your Altair chart and “Open in Vega Editor” to create a reproducible Vega-Lite example and see if you get the same error in the Vega Editor.
• Search for duplicate issues.
• Use the latest version of Altair.
• Describe how to reproduce the bug and include the full code and data to reproduce it, ideally using a sample data set from vega_datasets.

[joelostblom]

Sorry missed to reply here. I think a minor release would be nice in theory, but probably not worth the effort since we would need to sort out which commits should go into it and maybe even rebase the main repo to reorder the commits accordingly since we have added all new functionality into the main branch right now. I think our time is better spent fixing the outstanding issues for the next major release.

[ChristopherDavisUCI]

@mattijn @joelostblom Would it make sense to have a mini-release (like 4.2.1) fixing this iteritems issue but not adding all the other Altair 5 bells and whistles? Not sure if that’s even possible or not.