Python script to check the validity of a given IP address

Python/IP-Hostname_Validator/README.md

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+# IP/Hostname Validator
+### Libraries used:
+- ipaddress - Provides functions to create, manipulate and operate in IPv4 and IPv6 addresses and networks.
+- sys - Used to provide access to variables maintained by the interpreter.
+- socket - Provides functions and objects to build network applications for clients and servers. It helps access the BSD Socket interface.
+
+### Description
+The script can be used to find the:
+- IP Address from hostname
+- Hostname from an IP Address
+
+It mainly validates a given IP Address and Hostname. The IP Addresses are accepted in IPv4 and IPv6 formats.
+
+### Setup instructions
+Navigate to Rotten-Scripts/Python/IP-Hostname_Validator.
+
+To validate a given IP Address and get the hostname.
+
+`
+python main.py ip 8.8.8.8
+`
+
+Output:
+
+![image](https://user-images.githubusercontent.com/76458668/162009872-de378e0d-dc39-4894-bc6d-d9c98e538964.png)
+
+
+To find the IP Address of a given hostname.
+
+` 
+python main.py hostname facebook.com
+`
+
+Output:
+
+![image](https://user-images.githubusercontent.com/76458668/162010700-d61a24b9-46bb-44c8-8e24-77f0e2c2baa9.png)
+
+### Author
+[Yashesvinee](https://github.com/Yashesvinee) 

Python/IP-Hostname_Validator/main.py

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+import ipaddress
+import socket
+import sys 
+
+if sys.argv[1]=="ip":
+   ip = sys.argv[2]
+   try: 
+      print(ipaddress.ip_address(ip))
+      print('IP Valid')
+      host = socket.gethostbyaddr(ip)
+      print("Host: " + str(host[0]))
+   except ValueError: 
+      print('-' *25)
+      print('IP is not valid')
+
+elif sys.argv[1]=="hostname":
+   host = sys.argv[2]
+   try:
+      print(host)
+      # gethostbyname() returns IPv4 address
+      ip = socket.gethostbyname(host) 
+      print("IP Address: ", ip)
+   except socket.gaierror:
+      print('-' *25)
+      print("Hostname does not exist")
+
+

Python/README.md

@@ -205,3 +205,4 @@
 - [Zoom Automation](./Zipper)
 - [Linkedin Wish Sender](./Linkedin_Wishes_Sender)
 - [Facebook Friend Request Accepter](./Fb_Request_Accepter)
+- [IP Address/Hostname Validator](./IP-Hostname_Validator)