Day 19 – Python Full Stack Training at Codegnan Today’s session focused on File Handling in Python, an essential concept for working with files and managing data storage in real-world applications. File handling allows programs to create, read, write, and update files, making it possible to store data permanently. 🔹 Key Concepts Learned: • Introduction to File Handling • Opening files using open() • Different file modes – r, w, a, rb, wb • Reading data using read(), readline(), readlines() • Writing data using write() and writelines() • Closing files using close() • Using with statement for better file handling 🔹 Example: with open("sample.txt", "w") as file: file.write("Hello, Python File Handling!") with open("sample.txt", "r") as file: content = file.read() print(content) This session helped me understand how to manage data storage and retrieval, which is widely used in applications like logs, databases, and file-based systems. Grateful for the continuous guidance and support from our mentors throughout this learning journey. Saketh Kallepu Anand Kumar Buddarapu Uppugundla Sairam Pooja Chinthakayala

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