Uhm... It seems that IPython got some problems: http://ipython.scipy.org/doc/manual/node12.html
In details: >Note that this does not make IPython a full-fledged system shell. In >particular, it has >no job control, so if you type Ctrl-Z (under Unix), you'll >suspend pysh itself, not the >process you just started. >What the shell profile allows you to do is to use the convenient and powerful >syntax of >Python to do quick scripting at the command line. -- http://mail.python.org/mailman/listinfo/python-list
