Updating the dhcp_test.py to make it work again.

[AnuravModak]

Describe the bug or enhancement
The current code exhibits multiple issues that could be causing its malfunction. These include improper use of global variables, reliance on obsolete libraries, the presence of hard-coded values, and limitations in packet handling. Notably, the script employs the "pcap" library to capture packets, which might be constrained by platform dependencies and restrictions. Additionally, the code is written in Python 2, potentially leading to compatibility problems with modern environments. Furthermore, the script lacks comprehensive error handling mechanisms, which could hinder its robustness.

To address these concerns, I intend to allocate some time to rectify these issues. My plan involves revising the code to adhere to recent stable versions of Python and ensuring compatibility. Furthermore, I will focus on enhancing error handling, updating libraries, and optimizing packet handling for better performance.

Assistance Requested
I am seeking assistance in identifying valuable resources that can aid me in resolving these issues effectively. If anyone can recommend pertinent materials or guides, it would greatly contribute to the improvement process. Additionally, insights into specific criteria or test cases under which the refined script can be rigorously tested would be highly beneficial. This will help ensure that the modifications are successful and that the script functions reliably under various scenarios.

About me
I am currently working in Oracle and residing in India, so I would be glad if this is assigned to me!! [any sort of assistance is greatly appreciated]