Have a CLI Python application? Want to automate testing of the actual console input & output of your user-facing components? stdio Manager can help. While some functionality here is more or less duplicative of redirect_stdout and redirect_stderr in contextlib within the standard library, it provides (i) a much more concise way to mock both stdout and stderr at the same time, and (ii) a mechanism for mocking stdin, which is not available in contextlib. bskinn/stdio-mgr stdio-mgr