Think Python is pretty approachable for newcomers. It's also made available for free, and fwiw has a version for 2 and 3. http://greenteapress.com/wp/think-pyt

Think Python is pretty approachable for newcomers. It's also made available for free, and fwiw has a version for 2 and 3. http://greenteapress.com/wp/think-python-2e/ http://greenteapress.com/wp/think-python-2e/