Problem while printing classes of ontology in python3

Asked Oct 19 '19 at 09:30

Active Oct 19 '19 at 13:20

Viewed 258 times

I'm using owlready2. I loaded a local .owl file( .owl file I'm using) , it has a class Radiometry. I did the following:

 from owlready2 import *
 onto=get_ontology("file:///Users/adarshkumar/Downloads/ontology.owl").load()
 print(onto.Radiometry)

The output was None

Why am I getting None when I print an already present class in the ontology?

To debug I tried:

>>> list(onto.classes())

Then I got:

[owl.Thing, untitled-ontology-17.Radiometry, untitled-ontology-17.Astrophysics,........]

What does untitled-ontology mean, is this the problem?

Full description below:

I'm new to this and would highly appreciate any help.

edited Oct 19 '19 at 13:20

asked Oct 19 '19 at 09:30

2

Can you provide a full reproducible example of the problem you are having please? – Nick Martin Oct 19 '19 at 09:33
@NickMartin, Why am I getting None when I print a class already present in the ontology? – Oct 19 '19 at 09:47
Like I said, can you provide a fully working piece of code that can in isolation be used to reproduce your problem? – Nick Martin Oct 19 '19 at 09:54
@NickMartin I've updated the code – Oct 19 '19 at 10:00
That's all I'm doing – Oct 19 '19 at 10:13
It's not reproducible if you don't provide your input file... – Nick Martin Oct 19 '19 at 10:40
@NickMartin I've added the link for the file I'm using – Oct 19 '19 at 11:23

0 Answers0