DaDude

public class ImageEx : Image
{
    public static readonly BindableProperty TrueAspectProperty =
        BindableProperty.Create(
        propertyName: nameof(TrueAspect),
        returnType: typeof(AspectEx),
        declaringType: typeof(AspectEx),
        defaultValue: AspectEx.AspectFit,
        defaultBindingMode: BindingMode.OneWay,
        propertyChanged: OnAspectExPropertyChanged);

DaDude

"Plot a PNG using matplotlib in a web request, using Flask."

# Install dependencies, preferably in a virtualenv:
#
#     pip install flask matplotlib
#
# Run the development server:
#
#     python app.py
#

DaDude

from flask import Flask, make_response
app = Flask(__name__)

@app.route("/simple.png")
def simple():
    import datetime
    import StringIO
    import random

    from matplotlib.backends.backend_agg import FigureCanvasAgg as FigureCanvas