@@ -69,15 +69,15 @@ simple example in both Python and Java.
 
     grade = int(input('enter a grade'))
     if grade < 60:
-        print 'F'
+        print('F')
     elif grade < 70:
-        print 'D'
+        print('D')
     elif grade < 80:
-        print 'C'
+        print('C')
     elif grade < 90:
-        print 'B'
+        print('B')
     else:
-        print 'A'
+        print('A')
 
 In Java we have a couple of ways to write this
 
@@ -176,7 +176,7 @@ integer or enumerated constant. Second it is very easy to forget to put
 in the ``break`` statement. If the break statement is left out then then
 the next alternative will be automatically executed. For example if the
 grade was 95 and the ``break`` was omitted from the ``case 9:``
-alternative then the program would print out both A and B.
+alternative then the program would print(out both A and B.)
 
 Boolean Operators
 -----------------
 
@@ -588,7 +588,7 @@ this as follows:
     def main():
         for i in range(10):
             s = Student(i,"Student-"+str(i))
-        print 'The number of students is: ', Student.numStudents
+        print('The number of students is: ', Student.numStudents)
 
     main()
 
 
@@ -10,7 +10,7 @@ version of hello world for Python:
 ::
 
     def main():
-        print "Hello World!"
+        print("Hello World!")
 
 Remember that we can define this program right at the Python command
 line and then run it:
@@ -239,7 +239,7 @@ something like the following class definition.
     class Hello(object):
         @staticmethod
         def main(args):
-            print "Hello World!"
+            print("Hello World!")
 
 Notice that we used the decorator ``@staticmethod`` to tell the Python
 interpreter that ``main`` is going to be a static method. The impact of
 
@@ -15,7 +15,7 @@ def __repr__(self):
             return str(self.num)+"/"+str(self.den)
 
     def show(self):
-        print self.num,"/",self.den
+        print(self.num,"/",self.den)
 
     def __add__(self,otherfraction):
         # convert to a fraction
@@ -63,7 +63,7 @@ def toFract(self,n):
         elif isinstance(n,Fraction):
             otherfraction = n
         else:
-            print "Error: cannot add a fraction to a ", type(n)
+            print("Error: cannot add a fraction to a ", type(n))
             return None
         return otherfraction
 
 
@@ -42,7 +42,7 @@ temperature to Celsius.
     def main():
         fahr = int(input("Enter the temperature in F: "))
         cel = (fahr - 32) * 5.0/9.0
-        print "the temperature in C is: ", cel
+        print("the temperature in C is: ", cel)
 
     main()
 
@@ -329,7 +329,7 @@ and prints a histogram.
 
         idx = 0
         for num in count:
-            print idx, " occured ", num, " times."
+            print(idx, " occured ", num, " times.")
             idx += 1
 
 Now if we run this program on a data file that looks like this:
@@ -632,7 +632,7 @@ for this job could look like this:
 
        keyList = sorted(count.keys())
        for k in keyList:
-           print "%-20s occurred %4d times"%(k, count[k])
+           print("%-20s occurred %4d times" % (k, count[k]))
 
    main()
 
 
@@ -14,7 +14,7 @@ in conjunction with the range function. For example:
 ::
 
     for i in range(10):
-       print i
+       print(i)
 
 In Java we would write this as:
 
@@ -51,7 +51,7 @@ Python loop would be written as:
 ::
 
     for i in range(100,-1,-5):
-        print i
+        print(i)
 
 In Java we would write this as:
 
@@ -71,7 +71,7 @@ In Python we can iterate over a list as follows:
 
     l = [1, 1, 2, 3, 5, 8, 13, 21]
     for fib in l:
-       print fib
+       print(fib)
 
 In Java we can iterate over an ArrayList of integers too:
 
 
@@ -25,8 +25,8 @@
 master_url = None
 doctrees = None
 if master_url is None:
-    if gethostname() in ['web608.webfaction.com', 'rsbuilder']:
-        master_url = 'http://interactivepython.org'
+    if gethostname() in ['runestone.academy', 'runestone-deploy', 'rsbuilder']:
+        master_url = 'https://runestone.academy'
         if os.path.exists('../../custom_courses/{}'.format(project_name)):
             doctrees = '../../custom_courses/{}/doctrees'.format(project_name)
         else: