As it is explained in the following link at jetbrains:
https://www.jetbrains.com/help/pycharm/class-diagram.html
In order to generate a UML class diagrams I should right-click an item in the Project tool window and then select "Diagrams | Show Diagram. However, I cannot see the option Diagrams.
You can see in the below photo that when I right-click on an item, I don't have the Diagrams option.
I am using PyCharm Professional and also the plugin "Diagrams" is installed on my PyCharm.
Does someone know why I don't see this option in my IDE?