Python IO Module

Stream handling — StringIO, BytesIO for in-memory I/O. This category documents 6 Python io module entries, and each page gives you the full syntax, the parameter list, the return value, and a runnable example. The entries include: io.StringIO(), io.BytesIO(), StringIO.getvalue(), StringIO.seek(), StringIO.truncate(), StringIO.close(). io.StringIO() creates an in-memory text stream (like a file for string I/O). io.BytesIO() creates an in-memory binary stream (like a file for bytes I/O). StringIO.getvalue() returns the entire contents of the StringIO buffer as a string. StringIO.seek() changes the stream position to the given offset. StringIO.truncate() truncates the stream to the specified size. IO Module belongs to the File & Data group alongside Pathlib Module, Shutil Module, Glob Module, Fileinput Module. You can also search across every category from the search page, browse the complete A–Z index, or try any example in the Python playground.