Index D | I | L | M | O | P | R | S | T D d-orbital Debugging, [1] I Immutable L label plotting axes legend M meshgrid missing values with NumPy Models Code style Mutable O Object-Oriented Programming Classes Key Concepts Methods Special Methods OOP II: Building Classes P pesudorandom numbers plotting 3D bar plot colors figure size histogram markers multifigure overlaying saving plots scatter plot stem plot surface plot Python Assertions Content Decorators, [1], [2], [3] Descriptors, [1] Exceptions Generator Functions Generators Handling Errors Identity Interpreter Iterables Iteration Iterators, [1], [2] Methods Namespace (__builtins__) Namespace (Global) Namespace (Local) Namespace (Resolution) Namespaces Object-Oriented Programming Objects Properties Recursion Runtime Errors Slicing SymPy Type User-defined functions Variable Names R random numbers with NumPy S saving plots SymPy T title on plot