Question

Here is my problem. I’m working on a Jython program and I have to extract numbers from a PyJavaInstance:

[{string1=”foo”, xxx1, xxx2, …, xxxN, string2=”bar”}]

(where xxx are the floating point numbers).

My question is how can I extract the numbers and put them in a more simple structure like a python list.

Thank you in advance.

Answer 1

A PyJavaInstance is a Jython wrapper around a Java instance; how you extract numbers from it depends on what it is. If you need to get a bunch of stuff – some of which are strings and some of which are floats, then:

float_list = []
for item in instance_properties:
    try:
        float_list.append(float(item))
    except ValueError:
        pass