Get just not null values from intersection of shapefile and buffer with Python

Question

I generated a buffer using this question: Creating buffer circle x kilometers from point using Python?

I did an intersection with this buffer and a shapefile using:

intersection_origem = shp_geom.intersection(Polygon(buffer_origem))

The "intersection_origem" looks like above:

Apparently nothing wrong with it, but I need just the not null values like it's from 2595 to 2597. Is there a "filter" that can do what I need?

I tried the code above but with no success:

for i in range(0,intersection_origem.length):
    if (intersection_origem[i] != ""):
        print(intersection_origem[i])

Answer 1

Try this:

for i in range(0,intersection_origem.length):
    if intersection_origem[i]:
        print(intersection_origem[i])

empty strings and None both evaluate to false. See here for more info about what is truthy and falsey in Python.

By the way, it is not recommended to iterate through lists the way you are doing in Python. A more "pythonic" way of doing it would be like this:

for intersection in intersection_origem:
    if intersection:
        print(intersection)