Parse a CSV file of coordinates in Python

coords.py

import csv

""" Read a CSV file of points.

Assumes each line of the file is a CSV list of coordinates, which are parsed as
floats.
"""
def read_coords(fname):
    with open(fname, 'rb') as f:
        points = []
        # note that csv.reader has many options to control formatting
        # (see https://docs.python.org/2/library/csv.html#csv-fmt-params)
        r = csv.reader(f)
        for row in r:
            point = [float(v) for v in row]
            points.append(point)
        return points

test.csv

Output from parsing test.csv:

>>> import coords
>>> coords.read_coords("test.csv")
[[1.0, 2.0, 3.0], [3.0, 4.0, 5.0], [12.0, 3.4, 1.7], [4.0, 5.4, 2.0]]