from urllib import request
from reportlab.graphics.shapes import *
from reportlab.graphics import renderPDF
from reportlab.graphics.charts.lineplots import LinePlot
from reportlab.graphics.charts.textlabels import Label
data = []
COMMENT_CHARS = '#:'
url = 'http://services.swpc.noaa.gov/text/predicted-sunspot-radio-flux.txt'
for line in request.urlopen(url).readlines():
if not line.isspace() and not chr(line[0]) in COMMENT_CHARS:
data.append([float(n) for n in line.split()])print(data)
d = Drawing(400, 200)
lp = LinePlot()
lp.x = 50
lp.y = 50
lp.height = 130
lp.width = 300
high = [ row[3] for row in data]
low = [ row[4] for row in data]
pre = [ row[2] for row in data]
times = [ row[0] + row[1]/12.0 for row in data]
lp.data = [list(zip(times, pre)),list(zip(times, low)), list(zip(times, high))]
lp.lines[0].strokeColor = colors.blue
lp.lines[1].strokeColor = colors.red
lp.lines[2].strokeColor = colors.green
d.add(lp)
d.add(String(250, 150, 'Sunspots', fontSize=14, fillColor=colors.gold))
renderPDF.drawToFile(d, r"d:\report.pdf", "ok")