plotly solution for https://gist.github.com/christiandietrich/79051bbd582b96a93a2e

plotly-plotit.py

#!/usr/bin/python

import plotly.plotly as py
from plotly.graph_objs import *
import datetime as dt
import csv

py.sign_in('user', 'pass')

# Visualize CSV Data
with open('res.csv', 'rb') as f:

    reader = csv.reader(f, delimiter=',')
    subreddit = []
    readers = []
    active = []
    timestamp = []
    for row in reader:
        subreddit.append(row[0])
        readers.append(int(row[1]))
        active.append(int(row[2]))
        timestamp.append(dt.datetime.fromtimestamp(int(row[3])))
        # print subreddit, readers, active, timestamp # for debug

    active = Scatter(
            x=timestamp,
            y=active,
            name='active'
        )

    readers = Scatter(
            x=timestamp,
            y=readers,
            name='readers'
        )


    # data = Data([active, readers]) # the universe explodes!
    data = Data([active])
    layout = Layout(
        xaxis=XAxis(
            range=[
                min(timestamp),
                max(timestamp)
            ]
        )
    )

    fig = Figure(data=data, layout=layout)

    plot_url = py.plot(fig, filename='python-datetime-custom-ranges')