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added answer under Python/Explain Exception....

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@ -3230,6 +3230,29 @@ Generally, every compiling process have a two steps.
<details>
<summary>Explain Exception Handling and how to use it in Python</summary><br><b>
**Exceptions:** Errors detected during execution are called Exceptions.
**Handling Exception:** When an error occurs, or exception as we call it, Python will normally stop and generate an error message.</br>
Exceptions can be handled using `try` and `except` statement in python.
**Example:** Following example asks the user for input until a valid integer has been entered. </br>
If user enter a non-integer value it will raise exception and using except it will catch that exception and ask the user to enter valid integer again.
```py
while True:
try:
a = int(input("please enter an integer value: "))
print(a)
break
except:
print("Ops! Please enter a valid integer value.")
```
For more details about errors and exceptions follow this [https://docs.python.org/3/tutorial/errors.html](https://docs.python.org/3/tutorial/errors.html)
</b></details>
<details>