Python as well. The module system and the exception-handling system were mostly lifted from Modula-3, and the class/object system is a hybrid of Modula-3 and C+

Python as well. The module system and the exception-handling system were mostly lifted from Modula-3, and the class/object system is a hybrid of Modula-3 and C++ (something that's still explicitly stated in Python's documentation to this day [0]). If you first thought on reading that was "But Python's exception-handling system looks like everyone else's, how can it be lifted from this obscure language?", that's because everyone else lifted it from Modula-3 as well. That's right, C++ also borrowed Modula-3's system, and Java and C# built on top of that. Pretty much the whole mainstream concept of exception handling was invented by Modula-3. [0] https://docs.python.org/3/tutorial/classes.html https://docs.python.org/3/tutorial/classes.html