id()
id() is a Python function in the Built-in Functions category. Returns the memory address (identity) of an object. The syntax is id(object). Parameters: object — any Python object. Returns: Integer identity. A typical example: a = [1, 2, 3]
id(a) # 140234567890123. A close sibling is print(), which prints objects to the text stream, separated by `sep` and followed by `end`. A close sibling is len(), which returns the length (number of items) of an object. Works with sequences, collections, and strings. A close sibling is range(), which returns an immutable sequence of numbers. Commonly used in for loops. A close sibling is type(), which returns the type of an object, or creates a new type with three arguments. More about this category: Python's built-in functions available without importing — print, len, range, map, and more. For a broader walkthrough, read the Built-in Functions guide.