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• Lists: A list in Python is a collection of comma separated values or items within square brackets. You can
change or modify the values in the list i.e. it is mutable or changeable. For example:

• Tuples: A tuple is a list of comma separated values. You cannot change or modify the value of a tuple
whenever required, i.e, it is immutable. It is not necessary that all the available elements in a list are
of the same data type. The comma separated values must be enclosed in parenthesis (optional, not
necessary). For example:

Operators

Operators are some special symbols that trigger the operation on data. Operators are used to carry out some
operations on operands.

Arithmetic Operators
Arithmetic operators are used to perform mathematical operations on variables and values. Arithmetic operators
used in Python are:

Name Symbol Purpose Example Output
Addition + Adds two values 16+14 30
Subtraction - Subtracts second values from the first
value 16-14 2
Multiplication * Multiplies two values 10*20 200
Division / Divides two values 9/3 3
Modulus % Fnds the remainder after division of
one number by another. 100%99 1
Exponentiation ** Raises the first number to the power of 2**5 32
the second.
Floor Division // Divides the first number with the 17//3 5
second and returns the whole number
adjusted left to the number line.

Comparison or Relational Operators

Relational operators help us to determine the relationship between two operands. These operators are also
known as comparison operators because they compare the value of variables and determine the relationship
based on comparison. If the comparison is true, the relational expression results in the Boolean value True and

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