slcsp.py

import csv
import argparse
from collections import OrderedDict

def makeList(file=None, isSilver=False):
    data = []
    with open(file, 'r') as opened_file:
        reader = csv.DictReader(opened_file)
        if isSilver:
            for row in reader:
                if row['metal_level'] == 'Silver':
                    data.append(row)
        
        else:
            for row in reader:
                data.append(row)
        
        next(reader, None)
    
    return data

def saveToCSV(file_path=None, data_dict={}):
    with open(file_path, 'w') as f:
        writer = csv.DictWriter(f, ['zipcode', 'rate'], lineterminator='\n')
        writer.writeheader()

        for zipcode, rates in data_dict.items():
            if len(rates) > 1:
                rates.sort()
                writer.writerow({'zipcode': zipcode, 'rate': rates[1]})
            else:
                writer.writerow({'zipcode': zipcode, 'rate': str(rates)})
    
parser = argparse.ArgumentParser(description='some data')
parser.add_argument('-s', '--slcsp', help='CSV file c', required=True)
parser.add_argument('-p', '--plans', help='CSV with plans', required=True)
parser.add_argument('-z', '--zips', help='zip codes', required=True)

args = vars(parser.parse_args())

slcsp = makeList(args['slcsp'], False)
plans = makeList(args['plans'], True)
zips = makeList(args['zips'], False)

zipcode_dict_state_rate_area = OrderedDict()
for zipcode_from_slcsp in slcsp:
    that_zipcode_from_slcsp = zipcode_from_slcsp['zipcode']
    for zipcode_from_zips in zips:
        if that_zipcode_from_slcsp == zipcode_from_zips['zipcode']:
            if that_zipcode_from_slcsp in zipcode_dict_state_rate_area:
                if zipcode_dict_state_rate_area[that_zipcode_from_slcsp]['rate_area'] != zipcode_from_zips['rate_area']:
                    zipcode_dict_state_rate_area[that_zipcode_from_slcsp] = None
                
                break
            else:
                zipcode_dict_state_rate_area[that_zipcode_from_slcsp] = {
                    'rate_area':zipcode_from_zips['rate_area'],
                    'state': zipcode_from_zips['state']
                }

#print(zipcode_dict_state_rate_area)

silver_plans = [
    #empty now
]

answers = OrderedDict(
    #empty now
)

for zipcode, state_rate_area in zipcode_dict_state_rate_area.items():
    if not zipcode_dict_state_rate_area[zipcode]: # zipcode has not rate_area and state data
        answers[zipcode] = ''
    
    else:
        for silver_plan in plans:
            if state_rate_area['rate_area'] == silver_plan['rate_area'] and state_rate_area['state'] == silver_plan['state']:
                if zipcode in answers:
                    answers[zipcode].append(silver_plan['rate'])
                
                else:
                    answers[zipcode] = [silver_plan['rate']] #something here messy
    
    if zipcode not in answers:
        answers[zipcode] = ''

saveToCSV('row.csv', answers)
def printStdout(file=None, mode='r'):
    print('.......................| Writing to stdout |.............................')
    print('         ' + 'zipcode, rate')
    with open( file, mode) as openedfile:
        reader = csv.DictReader(openedfile)
        for row in reader:
            print('         ' + str(row['zipcode']) + ' , ' + str(row['rate']))
    
printStdout(file='row.csv')
    

To run the program, please do this
python slcsp.py -s=slcsp.csv -p=plans.csv -z=zips.csv
or
python --slcsp=slcsp.csv --plans=plans.csv --zips=zips.csv

the hit enter