Polyconic Projection

Poly/width: The only additional argument for the projection is the map width.

Out:

<IPython.core.display.Image object>

import pygmt

fig = pygmt.Figure()
fig.coast(
    shorelines="1/0.5p",
    region=[-180, -20, 0, 90],
    projection="Poly/12c",
    land="gray",
    borders="1/thick,black",
    frame="afg10",
)

fig.show()