get double the property value when using getattr(individual,'propName')

[Mutian]

Hello, Jiba

here is the test ontology i created with owlready:

with onto:
    class TestClass(Thing): pass

    class testProp(ObjectProperty): pass

    Test1 = TestClass('Test1')
    Test2 = TestClass('Test2')
    Test2.testProp.append(Test1)

when access it in terminal, everything is fine:
    getattr(Test2,'testProp')  #-> [Test1]

but when i try to access it through a web application i made,value is doubled
    getattr(Test2,'testProp')  #-> [Test1,Test1]

the web framework I'm using is Pyramid, owlready2 version 0.9 and python 3.7

Thanks!

[Jiba]

Hello,

Strange problem... Do you loads your ontology? The first value might be present in the file.

For helping debugging, you can:

 * use default_world.graph.dump() to see the entire content of the quadstore, and verify whether the property value is mentioned twice or not.

 * call set_log_level(9) BEFORE defining the property, in order to whether the triple for the property is asserted twice.

Best regards,
Jean-Baptiste Lamy
MCF HDR, Laboratoire LIMICS, Université Paris 13

[Mutian]

I moved the ontology.load() line to a seperate file and import the file, the problem is gone.
So, maybe the cause is some mechanism of the web framework I don't quite understand.

Anyway, Thanks for your help