buffer a geometry return None

[epifanio]

Trying the python-gdal cookbook, exactly this step: https://pcjericks.github.io/py-gdalogr-cookbook/geometry.html#buffer-a-geometry

poly = pt.Buffer(bufferDistance)

returns: None

and: poly.ExportToWkt() Returns:

AttributeError: 'NoneType' object has no attribute 'ExportToWkt'

[kannes]

What do you mean that poly = pt.Buffer(bufferDistance) returns None? The return value of the buffer operation is assigned the name poly. The buffer returns a geometry.

The code example works for me in both Python 2 and 3 (ignoring the print statement). GDAL==2.3.1