Tuple Assignment, Comments

Tuple Assignment

• Tuple is a sequence of items of any type.

• Syntactically tuple is a comma separated list of values.

• Conventionally tuples are enclosed within the parenthesis.

• The main differences between lists and tuples are: Lists are enclosed in brackets

([ ]) and their elements and size can be changed, while tuples are enclosed in parentheses (( )) and cannot be updated.

• Tuples can be thought of as read-only lists.

• For example: The tuple can be created as follows:

>>> student = ('AAA',96, 'Std_X')

>>> print(student)

 (AAA', 96, 'Std_X')

>>> print(student[0])

AAA

>>> print(student[1:3])

(96, 'Std_X')

• Python has a very powerful tuple assignment feature that allows a tuple of variables on the left of an assignment to be assigned values from a tuple on the right of the assignment.

• For example -

Review Question

1. Explain the tuple used in Python.

Comments

• Comments are the kind of statements that are written in the program for program understanding purpose.

• By the comment statements it is possible to understand what exactly the program is doing.

• In Python, we use the hash (#) symbol to start writing a comment.

• It extends up to the newline character.

• Python Interpreter ignores comment.

• For example # This is comment line print("I love my country")

• If we have comments that extend multiple lines, one way of doing it is to use hash (#) in the beginning of each line.

For example

#This is

#another example

#of comment statement