use examples directory for the output

examples/SimplePlot.py

 import initExample ## Add path to library (just for examples; you do not need this)
 
+from os.path import *
 from pyqtgraph.Qt import QtGui, QtCore
 import pyqtgraph as pg
 import numpy as np
@@ -7,7 +8,7 @@ plt = pg.plot(np.random.normal(size=100), title="Simplest possible plotting exam
 plt.getAxis('bottom').setTicks([[(x*20, str(x*20)) for x in range(6)]])
 ## Start Qt event loop unless running in interactive mode or using pyside.
 ex = pg.exporters.SVGExporter.SVGExporter(plt.plotItem.scene())
-ex.export('/home/luke/tmp/test.svg')
+ex.export(join(dirname(__file__), 'test.svg'))
 
 if __name__ == '__main__':
     import sys