Tip: Click (Shift+ for multiple) on countries in the legend to filter the visualization.
/opt/hostedtoolcache/Python/3.8.14/x64/lib/python3.8/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():
