How to Add Elements to a List in Python
Append to the end, insert at a position, extend from any iterable, or create a new list without mutating the original.
Append to the end, insert at a position, extend from any iterable, or create a new list without mutating the original.
The essential methods, trade-offs, and examples—plus tips for ordering, performance, and common pitfalls.
Use the built-in int() to parse numbers from strings, specify a base when needed, and add validation to avoid crashes.
Use built-in commands to remove named or prefix-based environments and reclaim disk space.
Use built-in math.log for scalars and NumPy’s np.log for arrays, with safe handling for edge cases.
Define attributes and behavior with the class keyword, then instantiate and use your objects effectively.