安裝pygal，可參閱：pip和pygal的安裝實例教程

基本XY線：

import pygalfrom math import cos"""XY線是將各個點用直線連接起來的折線圖需提供一個橫縱坐標(biāo)元組作為元素的列表"""xy_chart = pygal.XY()xy_chart.title = 'XY Cosinus'xy_chart.add('x = cos(y)', [(cos(x / 10.), x / 10.) for x in range(-50, 50, 5)])xy_chart.add('y = cos(x)', [(x / 10., cos(x / 10.)) for x in range(-50, 50, 5)])xy_chart.add('x = 1', [(1, -5), (1, 5)])xy_chart.add('x = -1', [(-1, -5), (-1, 5)])xy_chart.add('y = 1', [(-5, 1), (5, 1)])xy_chart.add('y = -1', [(-5, -1), (5, -1)])xy_chart.render_to_file('bar_chart.svg')

散點圖：

import pygalxy_chart = pygal.XY(stroke=False)xy_chart.title = 'Correlation'xy_chart.add('A', [(0, 0), (.1, .2), (.3, .1), (.5, 1), (.8, .6), (1, 1.08), (1.3, 1.1), (2, 3.23), (2.43, 2)])xy_chart.add('B', [(.1, .15), (.12, .23), (.4, .3), (.6, .4), (.21, .21), (.5, .3), (.6, .8), (.7, .8)])xy_chart.add('C', [(.05, .01), (.13, .02), (1.5, 1.7), (1.52, 1.6), (1.8, 1.63), (1.5, 1.82), (1.7, 1.23), (2.1, 2.23), (2.3, 1.98)])xy_chart.render_to_file('bar_chart.svg')

日期：

你可以使用日期模塊繪制與日期有關(guān)的圖表

DateTime

import pygalfrom datetime import datetimedatetimeline = pygal.DateTimeLine(  x_label_rotation=35, truncate_label=-1,  x_value_formatter=lambda dt: dt.strftime('%d, %b %Y at %I:%M:%S %p'))datetimeline.add("Serie", [  (datetime(2013, 1, 2, 12, 0), 300),  (datetime(2013, 1, 12, 14, 30, 45), 412),  (datetime(2013, 2, 2, 6), 823),  (datetime(2013, 2, 22, 9, 45), 672)])datetimeline.render_to_file('bar_chart.svg')

Date

import pygalfrom datetime import datedateline = pygal.DateLine(x_label_rotation=25)dateline.x_labels = [  date(2013, 1, 1),  date(2013, 7, 1),  date(2014, 1, 1),  date(2014, 7, 1),  date(2015, 1, 1),  date(2015, 7, 1)]dateline.add("Serie", [  (date(2013, 1, 2), 213),  (date(2013, 8, 2), 281),  (date(2014, 12, 7), 198),  (date(2015, 3, 21), 120)])dateline.render_to_file('bar_chart.svg')

Time

import pygalfrom datetime import timedateline = pygal.TimeLine(x_label_rotation=25)dateline.add("Serie", [  (time(), 0),  (time(6), 5),  (time(8, 30), 12),  (time(11, 59, 59), 4),  (time(18), 10),  (time(23, 30), -1),])dateline.render_to_file('bar_chart.svg')