PythonNet FileNotFoundException: Unable to find assembly
Question: I am trying to execute a Python script that uses Python For .Net
(<https://github.com/pythonnet/pythonnet>) to load a C# library called
"Kratos_3.dll" which is in the same folder as the script but the file cannot
be found.

I have installed clr using "pip install pythonnet".

This is my script:

    
    
    import clr
    import sys
    sys.path.insert(0,"C:\\dev\\proj_1\\")
    clr.AddReference("Kratos_3") 
    

I keep getting the error

    
    
    FileNotFoundException: Unable to find assembly 'Kratos_3. at Python.Runtime.CLRModule.AddReference(String name)
    

When I run this using IronPython it works, but I would like to get this to
work using regular Python 2.7, what do I need to do?


Answer: It turns out that even though I added the path through

    
    
    sys.path.insert(0,"C:\\dev\\proj_1\\")
    

it still couldn't find the file because the .dll because Windows was not
enabling it to load from "external sources". To fix this:

  1. Right-click on the .dll
  2. "Properties"
  3. Under "General", click "Unblock"

