#!/usr/bin/env python3
import matplotlib.pyplot as plt

x = []
y = []

with open('test') as fin:
    for line in fin.read().splitlines():
        x_, y_ = list(map(int, line.strip().split(',')))
        x.append(x_)
        y.append(y_)

plt.plot(x, y)
plt.xlabel('x')
plt.ylabel('y')
plt.show()