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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def read_csv(filename):
 """ Read a list of week-matrices from a CSV file. """


    with open(filename, 'r') as f:
        r = csv.reader(f)
        next(r)  # remove header
        wm = list(r)

    # remove header and convert to numeric
    for i, row in enumerate(wm):
        row[1:4] = map(int, row[1:4])
        row[4] = float(row[4])

    return wm