ISBN number 😎

Author: Avdhesh-Varshney

Auto-Linkedin /AutoLinkedIn.py

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+# Checking entered number is a isbn number or not
+def valid_ISBN(isbn):
+    # Remove hyphens and spaces from the ISBN
+    isbn = isbn.replace('-', '').replace(' ', '')
+
+    # Check if the length of the ISBN is valid
+    if len(isbn) == 10:
+        return valid_ISBN10(isbn)
+    elif len(isbn) == 13:
+        return valid_ISBN13(isbn)
+    else:
+        return False
+
+# Checking the entered number is a valid 10-digit isbn number
+def valid_ISBN10(isbn):
+    # Check if the ISBN is valid according to the ISBN-10 algorithm
+    if not isbn[:-1].isdigit() or not isbn[-1] in ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'X']:
+        return False
+
+    # Calculate the check digit
+    checkDigit = 0
+    weight = 10
+    for digit in isbn[:-1]:
+        checkDigit += int(digit) * weight
+        weight -= 1
+
+    checkDigit %= 11
+    if isbn[-1] == 'X':
+        checkDigit = 'X'
+
+    # Validate the check digit
+    return str(checkDigit) == isbn[-1]
+
+# Checking the entered number is a valid 13-digit isbn number
+def valid_ISBN13(isbn):
+    # Check if the ISBN is valid according to the ISBN-13 algorithm
+    if not isbn.isdigit():
+        return False
+
+    # Calculate the check digit
+    checkDigit = 0
+    weight = [1, 3] * 6
+    for digit, w in zip(isbn[:-1], weight):
+        checkDigit += int(digit) * w
+
+    checkDigit %= 10
+    checkDigit = (10 - checkDigit) % 10
+
+    # Validate the check digit
+    return str(checkDigit) == isbn[-1]
+
+
+# Ask the user to enter an ISBN number
+isbnNumber = input("\nEnter an ISBN number: ")
+
+# Validate the ISBN number
+if valid_ISBN(isbnNumber):
+    print("\nValid ISBN number.\n")
+else:
+    print("\nInvalid ISBN number.\n")
+

Auto-Linkedin /README.md

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+<h1 align="center">ISBN NUMBER VALIDATOR</h1>
+
+_______________________________________________________________________
+
+<br>
+
+## What is it
+
+- Full form of ISBN number - International Standard Book Numbers.
+- ISBNs are unique identifiers assigned to books.
+- They can have either 10 or 13 digits, depending on the edition and publication date.
+- This python script can verify the entered number is valid isbn number or not.
+
+
+<br>
+
+## TechStack
+
+use python 3 and above to use this **ISBN NUMBER VALIDATOR** program.
+
+
+<br>
+
+## Screenshot 📸
+
+![image](https://github.com/avinashkranjan/Amazing-Python-Scripts/assets/114330097/5cb881a1-2922-4a57-b2df-d3546ce65652)
+
+
+<br>
+
+## Created By 👦
+
+[Avdhesh Varshney](https://github.com/Avdhesh-Varshney)
+

ISBN-Number-Validator/ISBN-Number.py

@@ -106,4 +106,5 @@
 | 104\.     | Audio splitting script  | This Python script allows you to split large audio files into smaller segments based on silence, making them suitable for transcription or further analysis. | [Take Me](https://github.com/avinashkranjan/Amazing-Python-Scripts/tree/master/Audio\Splitting) |  [Srujana Vanka](https://github.com/srujana-16) |
 | 105\.     | Hangman game script | The Hangman game is a classic word-guessing game where the player tries to guess a secret word within a certain number of attempts. | [Take Me](https://github.com/avinashkranjan/Amazing-Python-Scripts/tree/master/hangman) | [Srujana Vanka](https://github.com/srujana-16) 
 | 106\.     | Fleury Algorithm | Fleury algorithm is used to find the euclerian circuit but this algorithm can also find the path in the disconnected graph also. | [Take Me](./Fleury-Algorithm) | [Avdhesh Varshney](https//github.com/Avdhesh-Varshney)
+| 107\.     | ISBN Number Validator Script | Full form of ISBN number - International Standard Book Numbers. This python script can verify the entered number is valid isbn number or not. | [Take Me](./ISBN-Number-Validator/) | [Avdhesh Varshney](https://github.com/Avdhesh-Varshney)