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#ticker.py

import sys

import os

excdir = os.getcwd()

excdir += r'\work'

sys.path

sys.path.append(excdir)

from follow import follow

import csv

from report import read_portfolio_6_2

def select_columns(rows, indices):

for row in rows:

yield[ row[index] for index in indices]

def convert_types(rows, types):

for row in rows:

yield [func(val) for func, val in zip(types, row)]

def make_dicts(rows, headers):

for row in rows:

yield dict(zip(headers, row))

def parse_stock_data(lines):

rows = csv.reader(lines)

rows = select_columns(rows, [0,1,4])

rows = convert_types(rows, [str, float, float])

rows = make_dicts(rows, ['name', 'price', 'change'])

return rows

def filter_symbols(rows, names):

for row in rows:

if row['name'] in names:

yield row

''' TODO: -- ticker method

'''

def ticker(portfile, logfile):

import report

portfolio = report.read_portfolio_2_6(portfile)

rows = parse_stock_data(follow(logfile))

rows = filter_symbols(rows, portfolio)

for row in rows:

print(row)

ticker('data/portfolio.csv','data/stocklog.csv')

if __name__ == '__main__':

lines = follow('work\data\stocklog.csv')

rows = parse_stock_data(lines)

for row in rows:

print(row)

## 6.4 more generators

i