Python to generate nice looking SVG graph http://pygal.org/
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# -*- coding: utf-8 -*-
# This file is part of pygal
#
# A python svg graph plotting library
# Copyright © 2012-2014 Kozea
#
# This library is free software: you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option) any
# later version.
#
# This library is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with pygal. If not, see <http://www.gnu.org/licenses/>.
from pygal import CHARTS, CHARTS_BY_NAME
from pygal.test import adapt
from random import sample
import timeit
import sys
rands = list(zip(
sample(range(1000), 1000),
sample(range(1000), 1000)))
def perf(chart_name, length, series):
chart = CHARTS_BY_NAME.get(chart_name)()
for i in range(series):
chart.add('s %d' % i, adapt(chart, rands[:length]))
return chart
def prt(s):
sys.stdout.write(s)
sys.stdout.flush()
if '--profile' in sys.argv:
import cProfile
c = perf('Line', 500, 500)
cProfile.run("c.render()")
sys.exit(0)
if '--mem' in sys.argv:
_TWO_20 = float(2 ** 20)
import os
import psutil
import linecache
pid = os.getpid()
process = psutil.Process(pid)
import gc
gc.set_debug(gc.DEBUG_UNCOLLECTABLE | gc.DEBUG_INSTANCES | gc.DEBUG_OBJECTS)
def print_mem():
mem = process.get_memory_info()[0] / _TWO_20
f = sys._getframe(1)
line = linecache.getline(f.f_code.co_filename, f.f_lineno - 1).replace('\n', '')
print('%s:%d \t| %.6f \t| %s' % (
f.f_code.co_name, f.f_lineno, mem, line))
c = perf('Line', 100, 500)
print_mem()
a = c.render()
print_mem()
import objgraph
objgraph.show_refs([c], filename='sample-graph.png')
gc.collect()
print_mem()
print(gc.garbage)
print_mem()
del a
print_mem()
del c
print_mem()
sys.exit(0)
charts = CHARTS if '--all' in sys.argv else 'Line',
for chart in charts:
prt('%s\n' % chart)
prt('s\\l\t1\t10\t100')
for series in (1, 10, 100):
prt('\n%d\t' % series)
for length in (1, 10, 100):
times = []
time = timeit.timeit(
"c.render()",
setup="from __main__ import perf; c = perf('%s', %d, %d)" % (
chart, length, series),
number=10)
prt('%d\t' % (1000 * time))
prt('\n')