What is the purpose of io.BytesIO in Python?

BytesIO is a class used for manipulating binary data in memory. It offers a file-like interface for reading, writing, moving, and manipulating binary data without the need for an actual file.

The purpose of io.BytesIO is to create a buffer in memory for storing and manipulating binary data. It can be used to save binary data to memory or read binary data from memory. Similar to using a file object, you can use methods like read, write, seek, etc. in the io.BytesIO class to operate on the data.

The io.BytesIO is commonly used in the following scenarios:

1. Handle binary data, such as reading, writing, manipulating binary files or network data.
2. Temporarily store binary data in memory without the need to create an actual file.
3. Passing binary data to a function or method that requires a file object parameter to avoid actually writing to or reading from a file.

The use of io.BytesIO allows for easy handling and manipulation of binary data, as it offers a similar interface to file objects, making it convenient to integrate with existing file handling code.