Points to remember:
· Python programming language has four collections of data types such as List, Tuple, Set and Dictionary.
· A list is known as a “sequence data type”. Each value of a list is called as element.
· The elements of list should be specified within square brackets.
· Each element has a unique value called index number begins with zero.
· Python allows positive and negative values as index.
· Loops are used access all elements from a list.
· The “for” loop is a suitable loop to access all the elements one by one.
· The append ( ), extend ( ) and insert ( ) functions are used to include more elements in a List.
· The del, remove ( ) and pop ( ) are used to delete elements from a list.
· The range ( ) function is used to generate a series of values.
· Tuples consists of a number of values separated by comma and enclosed within parentheses.
· Iterating tuples is faster than list.
· The tuple ( ) function is also used to create Tuples from a list.
· Creating a Tuple with one element is called “Singleton” tuple.
· A Set is a mutable and an unordered collection of elements without duplicates.
· A set is created by placing all the elements separated by comma within a pair of curly brackets.
· A dictionary is a mixed collection of elements.