frange(), a range function with float increments (Python recipe) by Dinu Gherman ActiveState Code (http://code.activestate.com/recipes/66472/) Sadly missing in the Python standard library, this function allows to use ranges, just as the built-in function range(), but with float arguments. All thoretic restrictions apply, but in practice this is more useful than in theory.
When I worked at a daycare we would have bike day during the summer when kids, aged 3-5, could bring in their bikes and ride them, most of the kids were on big bikes with training wheels and a few of the 4-5 year olds were without training wheels.
Drinking about one-and-a-half cups of milk per day is enough to meet the calcium needs of children between ages one and three, the time most typically considered toddler-hood. Babies under the age of one should not have any cow milk at all, even if they have begun walking and are referred to as toddlers.