Maybe you can look at https://turtle.sugarlabs.org/ (and some background on it http://wiki.sugarlabs.org/go/Activities/Turtle_Art ). It exports to Logo.

If you really want just typing, there are a few LOGO implementation in browser, see http://logo.twentygototen.org/ http://www.calormen.com/jslogo/

if you want to use iPython, have you looked at http://mail.scipy.org/pipermail/ipython-dev/2014-April/01372... ?