Sandbox/python/exam1

python

import matplotlib.pyplot as plt
from numpy import loadtxt
from urllib import urlopen

baseURL = "http://golem.fjfi.cvut.cz/utils/data/"
ShotNo = 20809
diagnSPEC = "loop_voltage"
#Create a path to data
dataURL = urlopen(baseURL+ str(ShotNo) + '/' + diagnSPEC)
#Load data from GOLEM server 
data=loadtxt(dataURL, delimiter='\t')
#Plot the graph
plt.plot(data[:,0], data[:,1], 'k-') 
plt.savefig('graph.jpg')
plt.show()

# command line execution:
# python Uloop.py