Python - Count occurrences of certain ranges in a list

Question

So basically I want to count the number of occurrences a floating point appears in a given list. For example: a list of grades (all scores out of 100) are inputted by the u

Answer 1

If you are fine with using the external library NumPy, then you just need to call numpy.histogram():

>>> data = [82, 85, 90, 91, 70, 87, 45]
>>> counts, bins = numpy.histogram(data, bins=10, range=(0, 100))
>>> counts
array([0, 0, 0, 0, 1, 0, 0, 1, 3, 2])
>>> bins
array([   0.,   10.,   20.,   30.,   40.,   50.,   60.,   70.,   80.,
         90.,  100.])