import matplotlib
%matplotlib inline
from matplotlib import pyplot as plt
import numpy as np
import json

data = json.load("sample.json")
arr = np.fromiter((data.get(str(port), 0) for port in range(0, 2**16)), dtype=int).reshape((2**10, 2**6))
plt.figure(figsize=(8, 16), facecolor='white')
plt.pcolormesh(arr2, cmap='inferno', vmin=0, vmax=2*arr.std())
plt.colorbar()
plt.xticks([])
plt.yticks([])