1, 0.9
2, 1.1
3, 1.7
4, 2.8
5, 6.7
6, 8.0

import numpy as np
import os
import matplotlib.pyplot as plt
import pylab
import re
import csv

intur1=open("input1", 'r')
list1=[line.split() for line in intur1]
listnum1=[list1[n][0] for n in range(len(list1))]
x1=[list1[n][1] for n in range(len(list1))]
intur2=open("input2", 'r')
list2=[line.split() for line in intur2]
listnum2=[list2[n][0] for n in range(len(list2))]
x2=[list2[n][1] for n in range(len(list2))]
ttlavg=[(float(x1[n])+float(x2[n]))/2 for n in range (len(list1))]
f1=plt.figure(1)
line1=plt.plot(listnum1, x1, 'b-', label = "t1")
line2=plt.plot(listnum2, x2, 'r-', label = "t2")
line3=plt.plot(listnum2, avg, 'g-', label = "Average")
plt.xlabel("Time")
plt.ylabel("Turbidity")
plt.title("Turbidity plot")
legend1=plt.legend(loc="best")
plt.savefig("Outfile.png")
plt.close(1)
intur1.close()
intur2.close()