from __future__ import division

import threading
import time
import sys
import numpy as np
import matplotlib
matplotlib.use('MacOSX')

import matplotlib.pyplot as plt


class async_worker(threading.Thread):
    def __init__(self, fig, axis):
        threading.Thread.__init__(self)
        self.fig = fig
        self.axis = axis

    def run(self):
        i = 0
        while True:
            print "Run thread %d" % i
            sys.stdout.flush()
            i += 1
            time.sleep(0.1)


def main():
    fig = plt.figure()
    ax = fig.add_subplot(1, 1, 1)
    ax.plot(np.random.rand(251, 1))

    async_worker(fig, ax).start()
    plt.show()


if __name__ == "__main__":
    main()