# -*- coding: utf-8 -*-
"""
Created on Sat Oct  5 12:24:33 2019

@author: Doug
"""
import matplotlib.pyplot as plt

coord = [[1,1], [2,1], [2,2], [1,2], [0.5,1.5]]
coord.append(coord[0]) #repeat the first point to create a 'closed loop'

xs, ys = zip(*coord) #create lists of x and y values

plt.figure()
plt.plot(xs,ys) 
plt.show() # if you need...