diff --git a/huge_page_setup_helper.py b/huge_page_setup_helper.py

index 43c9916..7ba0c92 100755

--- a/huge_page_setup_helper.py

+++ b/huge_page_setup_helper.py

@@ -1,4 +1,4 @@

-#!/usr/bin/python

+#!/usr/bin/env python3

 #

 # Tool to set up Linux large page support with minimal effort

@@ -14,13 +14,13 @@ debug = False

 # must be executed under the root to operate

 if os.geteuid() != 0:

-    print "You must be root to setup hugepages!"

+    print("You must be root to setup hugepages!")

     os._exit(1)

 # config files we need access to

 sysctlConf = "/etc/sysctl.conf"

 if not os.access(sysctlConf, os.W_OK):

-    print "Cannot access %s" % sysctlConf

+    print("Cannot access %s" % sysctlConf)

     if debug == False:

         os._exit(1)

@@ -41,7 +41,7 @@ for line in hugeadmexplain:

         break

 if memTotal == 0:

-    print "Your version of libhugetlbfs' hugeadm utility is too old!"

+    print("Your version of libhugetlbfs' hugeadm utility is too old!")

     os._exit(1)

@@ -54,7 +54,7 @@ for line in poolList:

         break

 if hugePageSize == 0:

-    print "Aborting, cannot determine system huge page size!"

+    print("Aborting, cannot determine system huge page size!")

     os._exit(1)

 # Get initial sysctl settings

@@ -83,22 +83,22 @@ for line in groupNames:

 # dump system config as we see it before we start tweaking it

-print "Current configuration:"

-print " * Total System Memory......: %6d MB" % memTotal

-print " * Shared Mem Max Mapping...: %6d MB" % (shmmax / (1024 * 1024))

-print " * System Huge Page Size....: %6d MB" % (hugePageSize / (1024 * 1024))

-print " * Number of Huge Pages.....: %6d"    % hugePages

-print " * Total size of Huge Pages.: %6d MB" % (hugePages * hugePageSize / (1024 * 1024))

-print " * Remaining System Memory..: %6d MB" % (memTotal - (hugePages * hugePageSize / (1024 * 1024)))

-print " * Huge Page User Group.....:  %s (%d)" % (hugeGIDName, hugeGID)

-print

+print("Current configuration:")

+print(" * Total System Memory......: %6d MB" % memTotal)

+print(" * Shared Mem Max Mapping...: %6d MB" % (shmmax / (1024 * 1024)))

+print(" * System Huge Page Size....: %6d MB" % (hugePageSize / (1024 * 1024)))

+print(" * Number of Huge Pages.....: %6d"    % hugePages)

+print(" * Total size of Huge Pages.: %6d MB" % (hugePages * hugePageSize / (1024 * 1024)))

+print(" * Remaining System Memory..: %6d MB" % (memTotal - (hugePages * hugePageSize / (1024 * 1024))))

+print(" * Huge Page User Group.....:  %s (%d)" % (hugeGIDName, hugeGID))

+print()

 # ask how memory they want to allocate for huge pages

 userIn = None

 while not userIn:

     try:

-        userIn = raw_input("How much memory would you like to allocate for huge pages? "

+        userIn = input("How much memory would you like to allocate for huge pages? "

                            "(input in MB, unless postfixed with GB): ")

         if userIn[-2:] == "GB":

             userHugePageReqMB = int(userIn[0:-2]) * 1024

@@ -113,19 +113,19 @@ while not userIn:

         # As a sanity safeguard, require at least 128M not be allocated to huge pages

         if userHugePageReqMB > (memTotal - 128):

             userIn = None

-            print "Refusing to allocate %d, you must leave at least 128MB for the system" % userHugePageReqMB

+            print("Refusing to allocate %d, you must leave at least 128MB for the system" % userHugePageReqMB)

         elif userHugePageReqMB < (hugePageSize / (1024 * 1024)):

             userIn = None

-            print "Sorry, allocation must be at least a page's worth!"

+            print("Sorry, allocation must be at least a page's worth!")

         else:

             break

     except ValueError:

         userIn = None

-        print "Input must be an integer, please try again!"

+        print("Input must be an integer, please try again!")

 userHugePageReqKB = userHugePageReqMB * 1024

 userHugePagesReq = userHugePageReqKB / (hugePageSize / 1024)

-print "Okay, we'll try to allocate %d MB for huge pages..." % userHugePageReqMB

-print

+print("Okay, we'll try to allocate %d MB for huge pages..." % userHugePageReqMB)

+print()

 # some basic user input validation

@@ -134,24 +134,24 @@ inputIsValid = False

 # ask for the name of the group allowed access to huge pages

 while inputIsValid == False:

     foundbad = False

-    userGroupReq = raw_input("What group should have access to the huge pages?"

+    userGroupReq = input("What group should have access to the huge pages?"

                              "(The group will be created, if need be) [hugepages]: ")

     if userGroupReq is '':

         userGroupReq = 'hugepages'

     if userGroupReq[0].isdigit() or userGroupReq[0] == "-":

         foundbad = True

-        print "Group names cannot start with a number or dash, please try again!"

+        print("Group names cannot start with a number or dash, please try again!")

     for char in badchars:

         if char in userGroupReq:

             foundbad = True

-            print "Illegal characters in group name, please try again!"

+            print("Illegal characters in group name, please try again!")

             break

     if len(userGroupReq) > 16:

         foundbad = True

-        print "Group names can't be more than 16 characaters, please try again!"

+        print("Group names can't be more than 16 characaters, please try again!")

     if foundbad == False:

         inputIsValid = True

-print "Okay, we'll give group %s access to the huge pages" % userGroupReq

+print("Okay, we'll give group %s access to the huge pages" % userGroupReq)

 # see if group already exists, use it if it does, if not, create it

@@ -163,20 +163,20 @@ for line in groupNames:

         break

 if userGIDReq > -1:

-    print "Group %s (gid %d) already exists, we'll use it" % (userGroupReq, userGIDReq)

+    print("Group %s (gid %d) already exists, we'll use it" % (userGroupReq, userGIDReq))

 else:

     if debug == False:

         os.popen("/usr/sbin/groupadd %s" % userGroupReq)

     else:

-        print "/usr/sbin/groupadd %s" % userGroupReq

+        print("/usr/sbin/groupadd %s" % userGroupReq)

     groupNames = os.popen("/usr/bin/getent group %s" % userGroupReq).readlines()

     for line in groupNames:

         curGroupName = line.split(":")[0]

         if curGroupName == userGroupReq:

             userGIDReq = int(line.split(":")[2])

             break

-    print "Created group %s (gid %d) for huge page use" % (userGroupReq, userGIDReq)

-print

+    print("Created group %s (gid %d) for huge page use" % (userGroupReq, userGIDReq))

+print()

 # basic user input validation, take 2

@@ -186,20 +186,20 @@ inputIsValid = False

 # ask for user(s) that should be in the huge page access group

 while inputIsValid == False:

     foundbad = False

-    userUsersReq = raw_input("What user(s) should have access to the huge pages (space-delimited list, users created as needed)? ")

+    userUsersReq = input("What user(s) should have access to the huge pages (space-delimited list, users created as needed)? ")

     for char in badchars:

         if char in userUsersReq:

             foundbad = True

-            print "Illegal characters in user name(s) or invalid list format, please try again!"

+            print("Illegal characters in user name(s) or invalid list format, please try again!")

             break

     for n in userUsersReq.split():

         if len(n) > 32:

             foundbad = True

-            print "User names can't be more than 32 characaters, please try again!"

+            print("User names can't be more than 32 characaters, please try again!")

             break

         if n[0] == "-":

             foundbad = True

-            print "User names cannot start with a dash, please try again!"

+            print("User names cannot start with a dash, please try again!")

             break

     if foundbad == False:

         inputIsValid = True

@@ -211,24 +211,24 @@ for hugeUser in hugePageUserList:

     for line in curUserList:

         curUser = line.split(":")[0]

         if curUser == hugeUser:

-            print "Adding user %s to huge page group" % hugeUser

+            print("Adding user %s to huge page group" % hugeUser)

             userExists = True

             if debug == False:

                 os.popen("/usr/sbin/usermod -a -G %s %s" % (userGroupReq, hugeUser))

             else:

-                print "/usr/sbin/usermod -a -G %s %s" % (userGroupReq, hugeUser)

+                print("/usr/sbin/usermod -a -G %s %s" % (userGroupReq, hugeUser))

         if userExists == True:

             break

     if userExists == False:

-        print "Creating user %s with membership in huge page group" % hugeUser

+        print("Creating user %s with membership in huge page group" % hugeUser)

         if debug == False:

             if hugeUser == userGroupReq:

                 os.popen("/usr/sbin/useradd %s -g %s" % (hugeUser, userGroupReq))

             else:

                 os.popen("/usr/sbin/useradd %s -G %s" % (hugeUser, userGroupReq))

         else:

-            print "/usr/sbin/useradd %s -G %s" % (hugeUser, userGroupReq)

-print

+            print("/usr/sbin/useradd %s -G %s" % (hugeUser, userGroupReq))

+print()

 # set values for the current running environment

@@ -238,11 +238,11 @@ if debug == False:

     os.popen("/usr/bin/hugeadm --set-shm-group %d" % userGIDReq)

     os.popen("/usr/bin/hugeadm --set-recommended-shmmax")

 else:

-    print "/usr/bin/hugeadm --pool-pages-min DEFAULT:%sM" % userHugePageReqMB

-    print "/usr/bin/hugeadm --pool-pages-max DEFAULT:%sM" % userHugePageReqMB

-    print "/usr/bin/hugeadm --set-shm-group %d" % userGIDReq

-    print "/usr/bin/hugeadm --set-recommended-shmmax"

-    print

+    print("/usr/bin/hugeadm --pool-pages-min DEFAULT:%sM" % userHugePageReqMB)

+    print("/usr/bin/hugeadm --pool-pages-max DEFAULT:%sM" % userHugePageReqMB)

+    print("/usr/bin/hugeadm --set-shm-group %d" % userGIDReq)

+    print("/usr/bin/hugeadm --set-recommended-shmmax")

+    print()

 # figure out what that shmmax value we just set was

 hugeadmexplain = os.popen("/usr/bin/hugeadm --explain 2>/dev/null").readlines()

@@ -258,7 +258,7 @@ if debug == False:

         try:

             sysctlConfLines = open(sysctlConf).readlines()

             os.rename(sysctlConf, sysctlConf + ".backup")

-            print("Saved original %s as %s.backup" % (sysctlConf, sysctlConf))

+            print(("Saved original %s as %s.backup" % (sysctlConf, sysctlConf)))

         except:

             pass

@@ -279,11 +279,11 @@ if debug == False:

     fd.close()

 else:

-    print "Add to %s:" % sysctlConf

-    print "kernel.shmmax = %d" % shmmax

-    print "vm.nr_hugepages = %d" % userHugePagesReq

-    print "vm.hugetlb_shm_group = %d" % userGIDReq

-    print

+    print("Add to %s:" % sysctlConf)

+    print("kernel.shmmax = %d" % shmmax)

+    print("vm.nr_hugepages = %d" % userHugePagesReq)

+    print("vm.hugetlb_shm_group = %d" % userGIDReq)

+    print()

 # write out limits.conf changes to persist across reboot

@@ -293,7 +293,7 @@ if debug == False:

         try:

             limitsConfLines = open(limitsConf).readlines()

             os.rename(limitsConf, limitsConf + ".backup")

-            print("Saved original %s as %s.backup" % (limitsConf, limitsConf))

+            print(("Saved original %s as %s.backup" % (limitsConf, limitsConf)))

         except:

             pass

@@ -319,25 +319,25 @@ if debug == False:

     fd.close()

 else:

-    print "Add to %s:" % limitsConf

+    print("Add to %s:" % limitsConf)

     for hugeUser in hugePageUserList:

-        print "%s		soft	memlock		%d" % (hugeUser, userHugePageReqKB)

-        print "%s		hard	memlock		%d" % (hugeUser, userHugePageReqKB)

+        print("%s		soft	memlock		%d" % (hugeUser, userHugePageReqKB))

+        print("%s		hard	memlock		%d" % (hugeUser, userHugePageReqKB))

 # dump the final configuration of things now that we're done tweaking

-print

-print "Final configuration:"

-print " * Total System Memory......: %6d MB" % memTotal

+print()

+print("Final configuration:")

+print(" * Total System Memory......: %6d MB" % memTotal)

 if debug == False:

-    print " * Shared Mem Max Mapping...: %6d MB" % (shmmax / (1024 * 1024))

+    print(" * Shared Mem Max Mapping...: %6d MB" % (shmmax / (1024 * 1024)))

 else:

     # This should be what we *would* have set it to, had we actually run hugeadm --set-recommended-shmmax

-    print " * Shared Mem Max Mapping...: %6d MB" % (userHugePagesReq * hugePageSize / (1024 * 1024))

-print " * System Huge Page Size....: %6d MB" % (hugePageSize / (1024 * 1024))

-print " * Available Huge Pages.....: %6d"    % userHugePagesReq

-print " * Total size of Huge Pages.: %6d MB" % (userHugePagesReq * hugePageSize / (1024 * 1024))

-print " * Remaining System Memory..: %6d MB" % (memTotal - userHugePageReqMB)

-print " * Huge Page User Group.....:  %s (%d)" % (userGroupReq, userGIDReq)

-print

+    print(" * Shared Mem Max Mapping...: %6d MB" % (userHugePagesReq * hugePageSize / (1024 * 1024)))

+print(" * System Huge Page Size....: %6d MB" % (hugePageSize / (1024 * 1024)))

+print(" * Available Huge Pages.....: %6d"    % userHugePagesReq)

+print(" * Total size of Huge Pages.: %6d MB" % (userHugePagesReq * hugePageSize / (1024 * 1024)))

+print(" * Remaining System Memory..: %6d MB" % (memTotal - userHugePageReqMB))

+print(" * Huge Page User Group.....:  %s (%d)" % (userGroupReq, userGIDReq))

+print()