michaelfeng · November 21, 2017 10:27 · Apr 20, 2013
diff --git a/gistfile1.py b/gistfile1.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python2
+'''Serving dynamic images with Pandas and matplotlib (using flask).'''
+
+import matplotlib
+matplotlib.use('Agg')
+
+import matplotlib.pyplot as plt
+import numpy as np
+import pandas as pd
+from cStringIO import StringIO
+import base64
+
+from flask import Flask
+app = Flask(__name__)
+
+html = '''
+<html>
+    <body>
+        <img src="data:image/png;base64,{}" />
+    </body>
+</html>
+'''
+
+@app.route("/")
+def hello():
+    df = pd.DataFrame(
+        {'y':np.random.randn(10), 'z':np.random.randn(10)},
+        index=pd.period_range('1-2000',periods=10),
+    )
+    fig = plt.figure()
+    ax = fig.add_subplot(1, 1, 1)
+    df.plot(ax=ax)
+
+    io = StringIO()
+    fig.savefig(io, format='png')
+    data = base64.encodestring(io.getvalue())
+
+    return html.format(data)
+
+
+if __name__ == '__main__':
+    app.run()