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The purple is the original polygon to be smoothed and I would like to smooth the polygons as the red line using Python.

I tried simplify but looks like I need a buffer and simplify the buffer. But I want to simplify the polygon directly. I am open to any other methods using Python.

import geopandas as gpd

d = gpd.read_file('poly.shp')
x = d.buffer(0.0001)

tolerance = 0.00005
simplified = x.simplify(tolerance, preserve_topology=True)
simplified.to_file('simplified.shp')

enter image description here

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