PyGoogleChart

google a écrit une API permettant de générer des graphiques à la volé.

vous pouvez trouver le site d’origine ici

Pour installer ce module rien de plus simple:

  • en téléchargeant l’exécutable sur le site de pygooglechart
  • en téléchargeant les sources puis en les installant
python setyp.py install

easy_install pygooglechart

PyGoogleChart permet d’obtenir de nombreux types de graphiques:

  • pie2D / pie3D
  • label
  • qrcodes
  • scatter
  • line

exemple de code permettant la génération de graphique

from pygooglechart import PieChart3D

# Create a chart object of 250x100 pixels
chart = PieChart3D(250, 100)

# Add some data
chart.add_data([20, 10])

# Assign the labels to the pie data
chart.set_pie_labels(['Hello', 'World'])

# Print the chart URL
print chart.get_url()

# Download the chart
chart.download('pie-hello-world.png')

from pygooglechart import Chart
from pygooglechart import SimpleLineChart
from pygooglechart import Axis

# Set the vertical range from 0 to 100
max_y = 100

# Chart size of 200x125 pixels and specifying the range for the Y axis
chart = SimpleLineChart(200, 125, y_range=[0, max_y])

# Add the chart data
data = [
    32, 34, 34, 32, 34, 34, 32, 32, 32, 34, 34, 32, 29, 29, 34, 34, 34, 37,
    37, 39, 42, 47, 50, 54, 57, 60, 60, 60, 60, 60, 60, 60, 62, 62, 60, 55,
    55, 52, 47, 44, 44, 40, 40, 37, 34, 34, 32, 32, 32, 31, 32
]
chart.add_data(data)

# Set the line colour to blue
chart.set_colours(['0000FF'])

# Set the vertical stripes
chart.fill_linear_stripes(Chart.CHART, 0, 'CCCCCC', 0.2, 'FFFFFF', 0.2)

# Set the horizontal dotted lines
chart.set_grid(0, 25, 5, 5)

# The Y axis labels contains 0 to 100 skipping every 25, but remove the
# first number because it's obvious and gets in the way of the first X
# label.
left_axis = range(0, max_y + 1, 25)
left_axis[0] = ''
chart.set_axis_labels(Axis.LEFT, left_axis)

# X axis labels
chart.set_axis_labels(Axis.BOTTOM, \
    ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun'])

chart.download('line-stripes.png')

from pygooglechart import QRChart

# Create a 125x125 QR code chart
chart = QRChart(125, 125)

# Add the text
chart.add_data('Hello, World!')

# "Level H" error correction with a 0 pixel margin
chart.set_ec('H', 0)

# Download
chart.download('qr-hello.png')