Resolve Issue #40: Changed more examples to use python3 syntax (#56)

03_recursion/python/02_greet.py

@@ -1,13 +1,13 @@
 def greet2(name):
-    print "how are you, " + name + "?"
+    print("how are you, ", name, "?")
 
 def bye():
-    print "ok bye!"
+    print("ok bye!")
 
 def greet(name):
-    print "hello, " + name + "!"
+    print("hello, ", name, "!")
     greet2(name)
-    print "getting ready to say bye..."
+    print("getting ready to say bye...")
     bye()
 
 greet("adit")

03_recursion/python/03_factorial.py

@@ -4,4 +4,4 @@ def fact(x):
   else:
     return x * fact(x-1)
 
-print fact(5)
+print(fact(5))

04_quicksort/python/01_loop_sum.py

@@ -4,4 +4,4 @@ def sum(arr):
     total += x
   return total
 
-print sum([1, 2, 3, 4])
+print(sum([1, 2, 3, 4]))

05_hash_tables/python/02_check_voter.py

@@ -1,10 +1,10 @@
 voted = {}
 def check_voter(name):
   if voted.get(name):
-    print "kick them out!"
+    print("kick them out!")
   else:
     voted[name] = True
-    print "let them vote!"
+    print("let them vote!")
 
 check_voter("tom")
 check_voter("mike")