DATA TYPES determine the type of an object type(2) # returns 'int' type(2.0) # returns 'float' type('two') # returns 'str' type(True) # returns 'bool' type(None) # returns 'NoneType' check if an object is of a given type isinstance(2.0, int) # returns False isinstance(2.0, (int, float)) # returns True convert an object to a given type float(2) int(2.9) str(2.9) zero, None, and empty containers are converted to False bool(0) bool(None) bool('') # empty string bool([]) # empty list bool({}) # empty dictionary non-empty containers and non-zeros are converted to True bool(2) bool('two') bool([2])
