import subprocess command1 = 'rm build/lib.linux-armv7l-2.7/RangeFinder_C.so' command2 = 'python setup.py build' command3 = 'cp build/lib.linux-armv7l-2.7/RangeFinder_C.so RangeFinder_C.so' subprocess.call(command1, shell=True) subprocess.call(command2, shell=True) subprocess.call(command3, shell=True) print "" from RangeFinder import RangeFinder x = RangeFinder() for i in range(800): dist1 = x.getDistance(1) #get distance from sensor 1 dist2 = x.getDistance(2) #get distance from sensor 2 dist3 = x.getDistance(3) dist4 = x.getDistance(4) print 'd1: ', dist1, ' d2: ', dist2, ' d3: ', dist3, ' d4: ', dist4