error

Traceback (most recent call last):
  File "python", line 1, in <module>
ImportError: libtk8.6.so: cannot open shared object file: No such file or directory

factors

import matplotlib.pyplot as plt
from math import sqrt
import functools

n = set(range(1000000))
x = []
y = []

def factors(n):
    a = []
    x = 2
    while x * x <= n :
        if n % x == 0:          
            a.append(x)
            n /= x
        else: x += 1
    if n > 1: a.append(n)
    return a

for i in n:
    xr = len(factors(i))
    yr = i
    x.append(xr)
    y.append(yr)

plt.scatter(x, y,
            color="blue",    # Color of the dots
            s=100,           # Size of the dots
            alpha=0.5,       # Alpha/transparency of the dots (1 is opaque, 0 is transparent)
            linewidths=1)    # Size of edge around the dots

plt.show()