🛡️ Update a File through a Python Algorithm

This project is part of the Coursera Cybersecurity Professional Certificate (Course 7). It demonstrates my ability to write Python code that reads, processes, and updates file data — a critical skill in cybersecurity automation.

📄 Project Description

In a healthcare company, access to restricted content is controlled via a file that stores an allow list of IP addresses. Some IPs must be removed from this list regularly based on a remove_list. I developed a Python script to automate this process.

The algorithm:

• Opens the allow_list.txt file
• Reads and parses the content
• Removes IP addresses found in remove_list
• Updates the file with the new list using .write()

🧠 Skills Demonstrated

• File handling with open(), .read(), and .write()
• String manipulation with .split() and .join()
• Looping with for and conditional logic with if
• Use of .remove() method to delete data from a list
• Writing clear, documented Python code

📁 Files Included

• file_update_script.py – Python script that performs the file update
• Update_File_Algorithm_Portfolio_Report.docx – Portfolio write-up with code explanations and context

✅ Status

Completed and submitted on Coursera with a score of 100%.

🔗 Author

Tinashe Zacariah
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