c.py

import pandas as pd
import matplotlib.pyplot as plt
import matplotlib.animation as animation
from matplotlib import style

fig = plt.figure()
ax1 = fig.add_subplot(1,1,1)

xs = []
ys = []

def animate(i):
    #df = pd.read_csv('progresshistory.txt', sep=' ', names=['cup', 'fraction', 'date', 'time', 'cest1', "cest2", "m"])
    #df.time = pd.to_datetime(df.time).view('int64')/1e6
    
    df = pd.read_csv('amir.txt')
    df.columns = ['cup', 'fraction', 'time']
    df['time'] = pd.to_datetime(df['time']).view('int64')/1e6
    
    ys = df['time'].diff()[-20:]
    ax1.clear()
    ax1.plot(ys)

#animate(0)
anim = animation.FuncAnimation(fig, animate, interval=100)

plt.show()