What steps will reproduce the problem? 1. Insert debugger into program using the API import and a call to debug() 2. Execute program and reach debugger prompt 3. Type a command, but before hitting Enter, type Ctrl-U.

What is the expected output? What do you see instead? Input should be cleared up to the prompt, but instead removes the prompt as well, reducing the output buffer to an empty line.

What version of the product are you using? On what operating system? The latest version available through easy_install.

I think it is now fixed in SVN. Please verify. Thanks for the report.