import matplotlib.pyplot as plt

filehandle = open("population.csv")
#print filehandle
#<open file 'population.csv', mode 'r' at 0x1002d6c90>


def print_population_list(filename):
    linenumber = 0
    global inwonerlijst
    inwonerlijst = []
    global yearlijst
    yearlijst = []

    for line in filehandle:
       linenumber+= 1

       if linenumber > 1:
        year = line.split('"')[5]
        year = int(year)
        pop = line.split('"')[7]
        pop = float(pop)
        pop=pop*1000
        pop=int(pop)
        yearlijst.append(year)
        inwonerlijst.append(pop)

    for i in range(len(inwonerlijst)):
        print yearlijst[i],':', inwonerlijst[i]


def print_population_dict(filename):
    global popdic
    popdic = dict(zip(yearlijst,inwonerlijst))
    print popdic
    return popdic

def plot_dic(title):
    yearlist = popdic.keys()
    poplist = popdic.values()

    plt.plot(yearlist,poplist)
    plt.title(title)
    plt.show()




print_population_list('N:\population.csv')
print_population_dict(filehandle)
plot_dic("pyplot")