StringIO is a module in Python that implements an in-memory file-like object, which can be used as input or output for most functions that would expect a standard file object. This is particularly useful when you need a file object that behaves like a file but is actually a string buffer in memory. This can be used for testing or to manipulate text in memory without actually writing to disk.

Code Example

Here's a basic example of how to use StringIO in Python: