Exception Handling:
===================
two types of errors:
	1) Syntax Errors	
	2) Runtime Errors

1) Syntax Error:
================
The error which occurs because of invalid syntax.

# Syntax Errors

# program to find the number is even or odd

num = 27

if num % 2 == 0
    print("It is an Even number.")
else:
    print("It is an Odd number.")

Note:
=====
Syntax Errors ==> Human Mistakes/Developer mistakes
==> responsible by human

Run Time Error:
===============
==> Also called as an Exceptions.
==> Runtime errors, we can observer during the execution of the program
==> Because of:
	1) User input
	2) Program logic
	3) memory issue etc.

a = int(input("Enter a value:"))
b = 0

print(type(a))

print(a/b)

What is an Exception?
=====================
An unwanted and unexpected even that disturbs the normal flow of the program execution is called as an "Exception".
==> For exception, there is a class.
Ex: Value Error,
Zero Division Error,
Type Error,
Index Error etc.

Exception Handling:
===================
Exception will stop the program
or
will disturb the normal flow of execution of the program

==> to make execute the program normally by handling an exception ==> Exception handling is used.

try-except block ==> to handle the exceptions

Syntax:
	try:
		program that we want to execute normally
		even with exception
	except:
		exception

# Exception Handling

a = int(input("Enter a value:"))
b = int(input("Enter a value:"))

try:
    res = a / b

except ZeroDivisionError:
    res = 0
    print("Dividing the number with 0 is not possible.")

print(res)

===============================

Try with Multiple Exceptions:
===============================

# evens = [2,4,6,8]   # with total four index ==> 0 to 3
#
# print(evens[4])

try:
    evens = [2,4,6,8]
    print(evens[4])
except ZeroDivisionError:
    print("Dividing a number with 0 is not possible.")
except IndexError:
    print("Index out of range is used.")
except TypeError:
    print("Index is not supported to use.")

===============================
try-except-else block:
=======================
When we might want to execute/run a certain block of code if the code block inside the try runs without any errors.
In this, we can use "else".

try:
    num = int(input("Enter a value:"))
    assert num % 2 == 0

except:
    print("Not an Even number.")
else:
    rec = 1/num
    print(rec)

================================

Semester Results:
=================
JNTU ==> 
	person ==> 4/6
	sub-1:60
	sub-2: 40
	sub-3: 50
	sub-4: 70
	sub-5: A
	sub-6: A

========================
Phonepe:
=======
	sending amount ==> friend
		5000
	Failure ==> Server Issue
	Technical issue at bank
	bank server running server