gistfile1.txt

# let's use the CSV library: http://docs.python.org/library/csv.html
import csv
import urllib
from datetime import datetime

# here workouts is GLOBAL
workouts = []

def load_data(url):
    data = []
    
    fp = urllib.urlopen('http://lyorn.idyll.org/~t/transfer/workout.csv')
    reader = csv.reader(fp)
    for line in reader:
        if line and not line[0].startswith('#'):
            data.append(line)
                
    for (date, exercise, miles, duration) in data:
        miles = int(miles)
        duration = int(duration)
        exercise = exercise.strip()
        date = datetime.strptime(date, "%Y, %b-%d")
        workouts.append([date, exercise, miles, duration])

def get_durations():
    durations = []
    for row in workouts:
        durations.append(row[3])
    return durations

def get_days():
    days = []
    for row in workouts:
        date = row[0]
        day = date.day
        days.append(day)
    return days

load_data('http://lyorn.idyll.org/~t/transfer/workout.csv')
durations = get_durations()
days = get_days()

plot(days, durations, 'r--', linewidth=2)
xlabel('Day of month')
ylabel('Duration of workout')
title('My workout')
grid()
xticks(range(1, max(days) + 1))
axis(ymax=70)