Plotly express functions take as argument a tidy [pandas DataFrame](https://pandas.pydata.org/pandas-docs/stable/getting_started/10min.html). With ``px.scatter_geo``, each line of the dataframe is represented as a marker point. The column set as the `size` argument gives the size of markers.

import plotly.express as px

gapminder = px.data.gapminder().query("year==2007")

fig = px.scatter_geo(gapminder, locations="iso_alpha", color="continent",

hover_name="country", size="pop",

projection="natural earth")

fig.show()

### Bubble Map with animation

import plotly.express as px

gapminder = px.data.gapminder()

fig = px.scatter_geo(gapminder, locations="iso_alpha", color="continent",

hover_name="country", size="pop",

animation_frame="year",

projection="natural earth")

fig.show()