THE PYTHON OPERATORS & COMMENTS

on

Python Operators:
A Python Operator is a symbol that is used to perform operations on variables and values.
For EXAMPLE:
10+20
30
Here,
  • + is the operator that performs the addition.
  • 10 and 20 are the operands.
  • 30 is the output.
Python programming language divides the Operators into the following groups:
  1. Arithmetic Operators
  2. Assignment Operators
  3. Comparison Operators
  4. Logical Operators
  5. Identity Operators
  6. Membership Operators
  7. Bitwise Operators
1.Arithmetic Operators

             The basic Arithmetic Operators are addition, subtraction, multiplication, and division. Arithmetic is performed according to an order of operation.

Operators
Meanings
+
Addition
-
Subtraction
*
Multiplication
/
Divide
%
Modulus
//
Floor Division
**
Exponent
                   

2.Assignment Operators

                Assignment operators are used to assigning value to variables. The assignment operators are described in the following table:
Operators
Meanings
=
Assign the value of the right expression to the left operand.
+=
Increases the value. For example: if a=10, b=20=>a+=b will be equal to a=a+b, therefore, a=30.
-=
Decreases the value. For example: if a=10, b=20>a-=b will be equal to a=a-b, therefore, a=10.
*=
Multiplies the value. For example: if a=10, b=20=>a*=b will be equal to a=a*b, therefore, a=200.
%=
Divides the value. For example: if a=20, b=10=>a % =b will be equal to a=a%b, therefore, a=0.
**==
a**=b will be equal to a=a**b, for example, if a=4, b2, a**=b will assign 4**2=16 to a.
//=
A//=b will be equal to a=a//b, for example, if a=4, b=3, a//=b will assign 4//3 = 1 to a.


3.Comparison Operator
             
              A comparison operator is used to comparing to values. The Comparison operators are described in the following table:
Operators
Meaning
= =
equal
!=
not equal
> 
greater than
< 
less than
>=
greater than or equal to
<=
less than or equal to
             

 4.Logical Operator

          Logical operators are used to combining conditional statements. The Logical operators are described in the following table:
Operators
Meanings
and
returns true when both statements are true
or
returns true when one of the statement is true
not
reverse the result, returns false when the result is true


5.Identity Operator

            Identity operators are used to comparing the objects, not when they are equal, but when they are actually the same object, with the same memory location. The Identity operators are described in the following table:
Operators
Meanings
is
returns true when both variables are the same object
is not
returns true when both variables are not the same object
             

 6.Membership Operator

            Membership operators are used to testing when a sequence is presented in the object. The Membership operators are described in the following table:
Operators
Meaning
in
returns true when a sequence with the specified value is present in the object
not in
returns true when a sequence with not the specified value is not present in the object


7.Bitwise Operator

           Bitwise operators are used to comparing binary numbers. The Bitwise operators are described in the following table:
Operators
Meanings
&
bitwise AND
|
bitwise OR
^
XOR
~
bitwise NOT
<< 
shift left
>> 
shift right


Python Comments:
        
            Python comments can be used to explain Python code, make the code more readable, prevent execution when testing code. A good programmer must use the comments because in the future anyone wants to modify the code as well as implement the new module; then, it can be done easily.
              
Creating a Comment:

  •  Comments start with a #, and Python will ignore them.

Example:
                #This is a comment
                 print("Welcome to TechieMania!")
Output:
              Welcome to TechieMania!
  • Comments can be placed at the end of a line, and Python will ignore the rest of the line.
Example:
                print("Welcome to TechieMania!") #This is a comment
Output:
               Welcome to TechieMania!

Multiline Comments:

                 Python does not really have a syntax for multi-line comments. To add a multi-line comment you could insert a # for each line.

Example:
                #This is a comment
                #Written in
                #more than just one line
                print("Welcome to TechieMania!")
Output:
                Welcome to TechieMania!

Hope this article found you interesting and stay tuned for more updates.
Thank You.
~ Jinal Menpara
            




Comments

Post a Comment