File Handling in Python

File Handling

• File handling in Python involves working with various types of files, including text files, binary files, and CSV files.
• You can perform a range of operations on files, such as creating, writing, appending, inserting, deleting, updating, and modifying data.

Types of Files

• Text File: Text files contain human-readable text and are typically encoded in plain text formats like ASCII or UTF-8.
• Binary Files: Binary files contain non-textual data and can be in various formats, such as images, audio, or any data that doesn't follow plain text encoding.
• CSV File: CSV (Comma-Separated Values) files store tabular data in plain text form, with values separated by commas.

Creating and Writing to a Text File in Python

• To create a new file, you can use the built-in open() function with the 'w' (write) mode for text files or 'wb' (write binary) mode for binary files.
• Here's an example of creating a text file and writing data:

Appending Data to Files

• To append data to an existing file, you can use the 'a' (append) mode.
• Here's an example:

Insertion, Deletion, and Modification of Data

• Inserting, deleting, and modifying data in a file is more complex and typically involves reading the file, making the necessary changes in memory, and then writing the updated data back to the file.
• Here's an example of modifying a specific line in a text file:

Conclusion

• File handling is an essential part of working with data in Python.
• You can create, write, append, insert, delete, update, and modify data in text and binary files.