[libredwg] Getting Layer List - Python

[Melvin Newman]

Hello all! 

I am very new to LibreDWG and I am trying to use it to extract information out of several 3D DWG files using the Python 2.7 bindings. I have built the library and everything appears to have worked as it should.

My first task is to dump out the list of layer names. I am getting stuck at the following though:

import os

import sys

import LibreDWG as DWG

if (len(sys.argv) != 2):

        print("Usage: dwgDD.py <filename>")

        exit()

filename = sys.argv[1]

a = DWG.Dwg_Data()

error = DWG.dwg_read_file(filename,a)

layers=DWG.dwg_get_layers(a)

for x in layers:

    pass

I get the following error: 

for x in layers:

TypeError: 'SwigPyObject' object is not iterable

I have a decent amount of experience with python, but basically none with Swig. 

How would I go about iterating over the layers and getting a list of layer names? 

Thank you very much for your help!

- MN