The problem is that data in Python is formatted as a WL List, not a Python array. I am not sure what is the best way to do the conversion. You could try

testArray = ExportString[test, "PythonExpression"]

and convert testArray from string to Python array using eval. There must be a better way.

You mentioned earlier that writing to a file in WL and reading it from Python works but you were looking for a more efficient method. How many geo locations are there in your real data?

Hi Ming-Chou,

Assuming that the data is generated using some Wolfram Language code, it might be easier to call it from Python. Take a look at the Wolfram Client Library for Python.