diff --git a/DomainClassifier/domainclassifier.py b/DomainClassifier/domainclassifier.py
index 6f7be78..b90280a 100644
--- a/DomainClassifier/domainclassifier.py
+++ b/DomainClassifier/domainclassifier.py
@@ -268,20 +268,20 @@ class Extract:
 if __name__ == "__main__":
     c = Extract(rawtext="www.xxx.com this is a text with a domain called test@foo.lu another test abc.lu something a.b.c.d.e end of 1.2.3.4 foo.be www.belnet.be http://www.cert.be/ www.public.lu www.allo.lu quuxtest www.eurodns.com something-broken-www.google.com www.google.lu trailing test www.facebook.com www.nic.ru www.youporn.com 8.8.8.8 201.1.1.1 abc.dontexist", nameservers=['127.0.0.1'])
 
-    print c.potentialdomain()
-    print c.potentialdomain(validTLD=True)
-    print c.validdomain(extended=True)
-    print "US:"
-    print c.localizedomain(cc='US')
-    print "LU:"
-    print c.localizedomain(cc='LU')
-    print "BE:"
-    print c.localizedomain(cc='BE')
-    print "Ranking:"
-    print c.rankdomain()
-    print "List of ip addresses:"
-    print c.ipaddress(extended=False)
-    print "Include dot.lu:"
-    print c.include(expression=r'\.lu$')
-    print "Exclude dot.lu:"
-    print c.exclude(expression=r'\.lu$')
+    print (c.potentialdomain())
+    print (c.potentialdomain(validTLD=True))
+    print (c.validdomain(extended=True))
+    print ("US:")
+    print (c.localizedomain(cc='US'))
+    print ("LU:")
+    print (c.localizedomain(cc='LU'))
+    print ("BE:")
+    print (c.localizedomain(cc='BE'))
+    print ("Ranking:")
+    print (c.rankdomain())
+    print ("List of ip addresses:")
+    print (c.ipaddress(extended=False))
+    print ("Include dot.lu:")
+    print (c.include(expression=r'\.lu$'))
+    print ("Exclude dot.lu:")
+    print (c.exclude(expression=r'\.lu$'))