iter()
iter() is a Python function in the Built-in Functions category. Returns an iterator object for the given object. The syntax is iter(object, sentinel=None). Parameters: object — iterable or callable. Returns: Iterator object. A typical example: it = iter([1, 2, 3])
next(it) # 1
next(it) # 2. 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.