Environment

• Pythonnet version: 2.5.2
• Python version: 3.7
• Operating System: Windows 10
• .NET Runtime: 4.8

Details

• Let's create a simple base class that exposes a property, then create a derived class that overrides the setter, but not the getter (that is supposed to be as it was defined in the base class)

namespace PythonNetTest
{
    public class BaseClass
    {
        protected string name = "noname";

        public virtual string Name { get => name; set => name = value; }
    }

    public class DerivedClass : BaseClass
    {
        public override string Name { set => base.Name = value.ToUpper(); }
    }
}

• Let's now use the above classes in Python

import clr
clr.AddReference("PythonNetTest")
from PythonNetTest import BaseClass, DerivedClass

d = DerivedClass()
b = BaseClass()

b.Name = 'BaseClass Name'
d.Name = 'DerivedClass Name'

print(b.Name)   # ok
print(d.Name)   # TypeError: property cannot be read

• Here the print(d.Name) will rise the exception TypeError: property cannot be read.
• As a workaround it is possible to use print(d.GetType().BaseType.GetProperty('Name').GetValue(d)) instead, but it is not one would expect.