#!/usr/bin/env python
#   -*- encoding: UTF-8 -*-

import sys
import csv
import pylab

# Usage: movierelease.py d:\data\netflix\download\movie_titles.txt
if __name__ == "__main__":
    data = []
    f = file(sys.argv[1], 'r')
    rdr = csv.reader(f)
    count = 0
    for i in rdr:
        try:
            id = int(i[0])
            year = int(i[1])
            title = ''.join(i[2:])
            data.append(year)
        except ValueError:
            print "error: ", i
            continue
        count += 1
    f.close()
    pylab.xlabel("Year of release")
    pylab.ylabel("No. movies")
    pylab.title("Movie Releases over time")
    pylab.hist(data, bins=range(1940,2006,1))
    pylab.savefig('movierelease.png',dpi=72)
    pylab.show()