plotly でいい感じのグラフをオンラインに公開する ref: http://qiita.com/trsqxyz/items/27b84bb72de5371b062d

file0.txt

import plotly.plotly as py
from plotly.graph_objs import *

trace0 = Scatter(
    x=[1, 2, 3, 4],
    y=[10, 15, 13, 17]
)

trace1 = Scatter(
    x=[1, 2, 3, 4],
    y=[16, 5, 11, 9]
)

data = Data([trace0, trace1])
unique_url = py.plot(data, filename = 'basic-line')

file1.txt

layout = Layout(title='basic-line')
fig = Figure(data=data, layout=layout)
py.image.save_as(fig, filename='fig.png')