getattr(object, name[, default]) Return the value of the named attribute of object. name must be a string

hasattr(object, name) The arguments are an object and a string. The result is True if the string is the name of

id(object) Return the “identity” of an object. This is an integer which is guaranteed to be unique and constant for this object

class set([iterable]) Return a new

class bytes([source[, encoding[, errors]]]) Return a new “bytes” object, which is an immutable sequence of integers in the range

abs(x) Return the absolute value of a number. The argument may be an integer or a floating point number. If the argument is

filter(function, iterable) Construct an iterator from those elements of iterable for which function returns

class frozenset([iterable]) Return a new

class bool([x]) Return a Boolean value, i.e. one of True or False. x is converted using the

len(s) Return the length (the number of items) of an object. The argument may be a sequence (such as a string, bytes, tuple