Coding help w/ Rick

gistfile1.py

import csv
from collections import Counter

class Reading(object):
    def __init__(self, **kwargs):
        for k,v in kwargs.iteritems():
            setattr(self, k, v)

file_list = [] # list of files
readings = []

for fp in file_list:
    with open(fp, 'r') as f:
        reader = csv.DictReader(f)
        values = Counter([line['value'] for line in reader])
        readings.append(Reading(
            id=fp,
            nan=values['NaN'],
            zero=values['0']
        ))