diff --git a/Python/HandleDMPFiles.py b/Python/HandleDMPFiles.py
index 9cd2951..34fa4e5 100644
--- a/Python/HandleDMPFiles.py
+++ b/Python/HandleDMPFiles.py
@@ -52,23 +52,23 @@ def writeDMP(array, outputfilename):
     array.tofile(dmpfile)
     dmpfile.close()
 
-# Read example DMP file with the function defined above
-DMPFileName = os.path.join(os.getcwd(), '..', 'example.DMP')
-DMP = readDMP(DMPFileName)
-# Show example image
-plt.subplot(121)
-plt.imshow(DMP, cmap='gray')
-plt.title('example.DMP')
+if __name__ == "__main__":
+    # Read example DMP file with the function defined above
+    DMPFileName = os.path.join(os.getcwd(), '..', 'example.DMP')
+    DMP = readDMP(DMPFileName)
+    # Show example image
+    plt.subplot(121)
+    plt.imshow(DMP, cmap='gray')
+    plt.title('example.DMP')
+    # Load some image from the internet and save its green channel as DMP.
+    URL = urllib2.urlopen('http://www.psi.ch/sls/tomcat/HomeEN/tomcat_banner.png')
+    image = plt.imread(URL)[:, :, 1]
+    writeDMP(image, 'randomimage.DMP')
+    # Read the image again as DMP and display it
+    plt.subplot(122)
+    plt.imshow(readDMP('randomimage.DMP'), cmap='gray')
+    plt.title('Some random image')
 
-# Load some image from the internet and save its green channel as DMP.
-URL = urllib2.urlopen('http://www.psi.ch/sls/tomcat/HomeEN/tomcat_banner.png')
-image = plt.imread(URL)[:, :, 1]
-writeDMP(image, 'randomimage.DMP')
-# Read the image again as DMP and display it
-plt.subplot(122)
-plt.imshow(readDMP('randomimage.DMP'), cmap='gray')
-plt.title('Some random image')
-
-plt.show()
-
-print 'Now open randomimage.DMP in Fiji!'
+    plt.show()
+    
+    print 'Now open randomimage.DMP in Fiji!'