diff --git a/contrib/header-tools/count-headers b/contrib/header-tools/count-headers
index 7a92596a602..9e7046a2a1e 100755
--- a/contrib/header-tools/count-headers
+++ b/contrib/header-tools/count-headers
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -45,11 +45,11 @@ if not usage and len (src) > 0:
   l.sort (key=lambda tup:tup[0], reverse=True)
 
   for f in l:
-    print str (f[0]) + " : " + f[1]
+    print(str (f[0]) + " : " + f[1])
 
 else:
-  print "count-headers file1 [filen]"
-  print "Count the number of occurrences of all includes across all listed files"
+  print("count-headers file1 [filen]")
+  print("Count the number of occurrences of all includes across all listed files")
 
  
 
diff --git a/contrib/header-tools/gcc-order-headers b/contrib/header-tools/gcc-order-headers
index ee76cba4b18..8d2e3cf6e77 100755
--- a/contrib/header-tools/gcc-order-headers
+++ b/contrib/header-tools/gcc-order-headers
@@ -1,11 +1,11 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os
 import sys
 import shlex
 import re
 
 from headerutils import *
-import Queue
+import queue
 
 file_list = list ()
 usage = False
@@ -77,19 +77,19 @@ def create_master_list (fn, verbose):
     if fn != "diagnostic.h" and fn != "diagnostic-core.h":
       master_list.append (fn)
       if (verbose):
-        print fn + "      included by: " + includes[fn][0]
+        print(fn + "      included by: " + includes[fn][0])
 
 
 
 def print_dups ():
   if dups:
-    print "\nduplicated includes"
+    print("\nduplicated includes")
   for i in dups:
     string =  "dup : " + i + " : "
     string += includes[i][0] 
     for i2 in dups[i]:
       string += ", "+i2
-    print string
+    print(string)
 
 
 def process_known_dups ():
@@ -230,11 +230,11 @@ for arg in sys.argv[1:]:
     elif arg[0:2] == "-v":
       show_master = True
     else:
-      print "Error: unrecognized option " + arg
+      print("Error: unrecognized option " + arg)
   elif os.path.exists(arg):
     file_list.append (arg)
   else:
-    print "Error: file " + arg + " Does not exist."
+    print("Error: file " + arg + " Does not exist.")
     usage = True
 
 if not file_list and not show_master:
@@ -242,7 +242,7 @@ if not file_list and not show_master:
 
 if not usage and not os.path.exists ("coretypes.h"):
   usage = True
-  print "Error: Must run command in main gcc source directory containing coretypes.h\n"
+  print("Error: Must run command in main gcc source directory containing coretypes.h\n")
 
 # process diagnostic.h first.. it's special since GCC_DIAG_STYLE can be
 # overridden by languages, but must be done so by a file included BEFORE it.
@@ -268,20 +268,20 @@ process_known_dups ()
 desired_order = master_list
 
 if show_master:
-  print " Canonical order of gcc include files: "
+  print(" Canonical order of gcc include files: ")
   for x in master_list:
-    print x
-  print " "
+    print(x)
+  print(" ")
 
 if usage:
-  print "gcc-order-headers [-i] [-v] file1 [filen]"
-  print "    Ensures gcc's headers files are included in a normalized form with"
-  print "    redundant headers removed.  The original files are saved in filename.bak"
-  print "    Outputs a list of files which changed."
-  print " -i ignore conditional compilation."
-  print "    Use after examining the file to be sure includes within #ifs are safe"
-  print "    Any headers within conditional sections will be ignored."
-  print " -v Show the canonical order of known headers"
+  print("gcc-order-headers [-i] [-v] file1 [filen]")
+  print("    Ensures gcc's headers files are included in a normalized form with")
+  print("    redundant headers removed.  The original files are saved in filename.bak")
+  print("    Outputs a list of files which changed.")
+  print(" -i ignore conditional compilation.")
+  print("    Use after examining the file to be sure includes within #ifs are safe")
+  print("    Any headers within conditional sections will be ignored.")
+  print(" -v Show the canonical order of known headers")
   sys.exit(0)
 
 
@@ -303,7 +303,7 @@ for fn in file_list:
 
   if ii_include_list_cond (iinfo):
     if not ignore_conditional:
-      print fn + ": Cannot process due to conditional compilation of includes"
+      print(fn + ": Cannot process due to conditional compilation of includes")
       didnt_do.append (fn)
       src = list ()
 
@@ -329,8 +329,8 @@ for fn in file_list:
       src_line[nm] = ii_src_line(iinfo)[d]
       if src_line[nm].find("/*") != -1 and src_line[nm].find("*/") == -1:
         # this means we have a multi line comment, abort!'
-        print fn + ": Cannot process due to a multi-line comment :"
-        print "        " + src_line[nm]
+        print(fn + ": Cannot process due to a multi-line comment :")
+        print("        " + src_line[nm])
         if fn not in didnt_do:
           didnt_do.append (fn)
         src = list ()
@@ -375,22 +375,22 @@ for fn in file_list:
     for line in new_src:
       fl.write (line)
     fl.close ()
-    print fn 
+    print(fn )
 
  
 if didnt_do:
-  print "\n\n Did not process the following files due to conditional dependencies:"
+  print("\n\n Did not process the following files due to conditional dependencies:")
   str = ""
   for x in didnt_do:
     str += x + " "
-  print str
-  print "\n"
-  print "Please examine to see if they are safe to process, and re-try with -i. "
-  print "Safeness is determined by checking whether any of the reordered headers are"
-  print "within a conditional and could be hauled out of the conditional, thus changing"
-  print "what the compiler will see."
-  print "Multi-line comments after a #include can also cause failuer, they must be turned"
-  print "into single line comments or removed."
+  print(str)
+  print("\n")
+  print("Please examine to see if they are safe to process, and re-try with -i. ")
+  print("Safeness is determined by checking whether any of the reordered headers are")
+  print("within a conditional and could be hauled out of the conditional, thus changing")
+  print("what the compiler will see.")
+  print("Multi-line comments after a #include can also cause failuer, they must be turned")
+  print("into single line comments or removed.")
 
 
 
diff --git a/contrib/header-tools/graph-header-logs b/contrib/header-tools/graph-header-logs
index e537aaeac0c..b4038f57628 100755
--- a/contrib/header-tools/graph-header-logs
+++ b/contrib/header-tools/graph-header-logs
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -53,7 +53,7 @@ ignore = [ "coretypes_h",
 
 def process_log_file (header, logfile):
   if header_roots.get (header) != None:
-    print "Error: already processed log file: " + header + ".log"
+    print("Error: already processed log file: " + header + ".log")
     return
   hname = pretty_name (header)
   header_roots[hname] = { }
@@ -66,7 +66,7 @@ def process_log_file (header, logfile):
       if newinc:
         incfrom = list()
         newinc = False
-      fn = re.findall(ur".*/(.*?):", line)
+      fn = re.findall(r".*/(.*?):", line)
       if len(fn) != 1:
         continue
       if fn[0][-2:] != ".h":
@@ -76,16 +76,16 @@ def process_log_file (header, logfile):
         incfrom.append (n)
       continue
     newinc = True
-    note = re.findall (ur"^.*note: (.*)", line)
+    note = re.findall (r"^.*note: (.*)", line)
     if len(note) > 0:
       sline.append (("note", note[0]))
     else:
-      err_msg = re.findall (ur"^.*: error: (.*)", line)
+      err_msg = re.findall (r"^.*: error: (.*)", line)
       if len(err_msg) == 1:
         msg = err_msg[0]
         if (len (re.findall("error: forward declaration", line))) != 0:
           continue
-        path = re.findall (ur"^(.*?):.*error: ", line)
+        path = re.findall (r"^(.*?):.*error: ", line)
         if len(path) != 1:
           continue
         if path[0][-2:] != ".h":
@@ -95,7 +95,7 @@ def process_log_file (header, logfile):
           continue
         sline.append (("error", msg, fname, incfrom))
 
-  print str(len(sline)) + " lines to process"
+  print(str(len(sline)) + " lines to process")
   lastline = "note"
   for line in sline:
     if line[0] != "note" and lastline[0] == "error":
@@ -111,7 +111,7 @@ def process_log_file (header, logfile):
           if ee not in extra_edges:
             extra_edges.append (ee)
           fname = t
-          print string
+          print(string)
 
       if hname not in nodes:
         nodes.append(hname)
@@ -125,7 +125,7 @@ def process_log_file (header, logfile):
       if header_roots[hname].get(fname) == None:
         header_roots[hname][fname] = list()
       if msg not in header_roots[hname][fname]:
-        print string + ofname + " : " +msg
+        print(string + ofname + " : " +msg)
         header_roots[hname][fname].append (msg)
     lastline = line;
 
@@ -181,10 +181,10 @@ def build_dot_file (file_list):
   if verbose:
     depcount.sort(key=lambda tup:tup[2])
     for x in depcount:
-      print " ("+str(x[2])+ ") : " + x[0] + " -> " + x[1]
+      print(" ("+str(x[2])+ ") : " + x[0] + " -> " + x[1])
       if (x[2] <= verbosity):
         for l in header_roots[x[0]][x[1]]:
-          print "            " + l
+          print("            " + l)
 
   output.write ("}\n");
 
@@ -205,7 +205,7 @@ for arg in sys.argv[1:]:
       if (verbosity == 9):
         verbosity = 9999
   elif arg[0:1] == "-":
-    print "Unrecognized option " + arg
+    print("Unrecognized option " + arg)
     dohelp = True
   else:
     files.append (arg)
@@ -214,16 +214,16 @@ if len(sys.argv) == 1:
   dohelp = True
 
 if dohelp:
-  print "Parses the log files from the reduce-headers tool to generate"
-  print "dependency graphs for the include web for specified files."
-  print "Usage:  [-nnum] [-h] [-v[n]] [-ooutput] file1 [[file2] ... [filen]]"
-  print "       -ooutput : Specifies output to output.dot and output.png"
-  print "                  Defaults to 'graph.dot and graph.png"
-  print "       -vn : verbose mode, shows the number of connections, and if n"
-  print "             is specified, show the messages if # < n. 9 is infinity"
-  print "       -h : help"
+  print("Parses the log files from the reduce-headers tool to generate")
+  print("dependency graphs for the include web for specified files.")
+  print("Usage:  [-nnum] [-h] [-v[n]] [-ooutput] file1 [[file2] ... [filen]]")
+  print("       -ooutput : Specifies output to output.dot and output.png")
+  print("                  Defaults to 'graph.dot and graph.png")
+  print("       -vn : verbose mode, shows the number of connections, and if n")
+  print("             is specified, show the messages if # < n. 9 is infinity")
+  print("       -h : help")
 else:
-  print files
+  print(files)
   build_dot_file (files)
   os.system ("dot -Tpng " + dotname + " -o" + graphname)
 
diff --git a/contrib/header-tools/graph-include-web b/contrib/header-tools/graph-include-web
index 47576a177de..dc2813bf1aa 100755
--- a/contrib/header-tools/graph-include-web
+++ b/contrib/header-tools/graph-include-web
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -82,7 +82,7 @@ for arg in sys.argv[1:]:
       noterm = True
   elif arg[0:2] == "-f":
     if not os.path.exists (arg[2:]):
-      print "Option " + arg +" doesn't specify a proper file"
+      print("Option " + arg +" doesn't specify a proper file")
       dohelp = True
     else:
       sfile = open (arg[2:], "r")
@@ -93,7 +93,7 @@ for arg in sys.argv[1:]:
   elif arg[0:2] == "-n":
     edge_thresh = int (arg[2:])
   elif arg[0:1] == "-":
-    print "Unrecognized option " + arg
+    print("Unrecognized option " + arg)
     dohelp = True
   else:
     files.append (arg)
@@ -102,17 +102,17 @@ if len(sys.argv) == 1:
   dohelp = True
 
 if dohelp:
-  print "Generates a graph of the include web for specified files."
-  print "Usage:  [-finput_file] [-h] [-ooutput] [file1 ... [filen]]"
-  print "  -finput_file : Input file containing a list of files to process."
-  print "  -ooutput : Specifies output to output.dot and output.png."
-  print "             defaults to graph.dot and graph.png."
-  print "  -nnum : Specifies the # of edges beyond which sfdp is invoked. def=0."
-  print "  -a : Aggregate all .c files to 1 file.  Shows only include web."
-  print "  -at : Aggregate, but don't include terminal.h to .c links."
-  print "  -h : Print this help."
+  print("Generates a graph of the include web for specified files.")
+  print("Usage:  [-finput_file] [-h] [-ooutput] [file1 ... [filen]]")
+  print("  -finput_file : Input file containing a list of files to process.")
+  print("  -ooutput : Specifies output to output.dot and output.png.")
+  print("             defaults to graph.dot and graph.png.")
+  print("  -nnum : Specifies the # of edges beyond which sfdp is invoked. def=0.")
+  print("  -a : Aggregate all .c files to 1 file.  Shows only include web.")
+  print("  -at : Aggregate, but don't include terminal.h to .c links.")
+  print("  -h : Print this help.")
 else:
-  print files
+  print(files)
   build_dot_file (files)
   if edges > edge_thresh:
     os.system ("sfdp -Tpng " + dotname + " -o" + graphname)
diff --git a/contrib/header-tools/headerutils.py b/contrib/header-tools/headerutils.py
index 95c47fb4b69..3f87b8bd4ab 100755
--- a/contrib/header-tools/headerutils.py
+++ b/contrib/header-tools/headerutils.py
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -10,7 +10,7 @@ import pickle
 import multiprocessing 
 
 def find_pound_include (line, use_outside, use_slash):
-  inc = re.findall (ur"^\s*#\s*include\s*\"(.+?)\"", line)
+  inc = re.findall (r"^\s*#\s*include\s*\"(.+?)\"", line)
   if len(inc) == 1:
     nm = inc[0]
     if use_outside or os.path.exists (nm):
@@ -19,17 +19,17 @@ def find_pound_include (line, use_outside, use_slash):
   return ""
 
 def find_system_include (line):
-  inc = re.findall (ur"^\s*#\s*include\s*<(.+?)>", line)
+  inc = re.findall (r"^\s*#\s*include\s*<(.+?)>", line)
   if len(inc) == 1:
     return inc[0]
   return ""
   
 def find_pound_define (line):
-  inc = re.findall (ur"^\s*#\s*define ([A-Za-z0-9_]+)", line)
+  inc = re.findall (r"^\s*#\s*define ([A-Za-z0-9_]+)", line)
   if len(inc) != 0:
     if len(inc) > 1:
-      print "What? more than 1 match in #define??"
-      print inc
+      print("What? more than 1 match in #define??")
+      print(inc)
       sys.exit(5)
     return inc[0];
   return ""
@@ -49,26 +49,26 @@ def is_pound_endif (line):
   return False
 
 def find_pound_if (line):
-  inc = re.findall (ur"^\s*#\s*if\s+(.*)", line)
+  inc = re.findall (r"^\s*#\s*if\s+(.*)", line)
   if len(inc) == 0:
-    inc = re.findall (ur"^\s*#\s*elif\s+(.*)", line)
+    inc = re.findall (r"^\s*#\s*elif\s+(.*)", line)
   if len(inc) > 0:
-    inc2 = re.findall (ur"defined\s*\((.+?)\)", inc[0])
-    inc3 = re.findall (ur"defined\s+([a-zA-Z0-9_]+)", inc[0])
+    inc2 = re.findall (r"defined\s*\((.+?)\)", inc[0])
+    inc3 = re.findall (r"defined\s+([a-zA-Z0-9_]+)", inc[0])
     for yy in inc3:
       inc2.append (yy)
     return inc2
   else:
-    inc = re.findall (ur"^\s*#\s*ifdef\s(.*)", line)
+    inc = re.findall (r"^\s*#\s*ifdef\s(.*)", line)
     if len(inc) == 0:
-      inc = re.findall (ur"^\s*#\s*ifndef\s(.*)", line)
+      inc = re.findall (r"^\s*#\s*ifndef\s(.*)", line)
     if len(inc) > 0:
       inc2 = re.findall ("[A-Za-z_][A-Za-z_0-9]*", inc[0])
       return inc2
   if len(inc) == 0:
     return list ()
-  print "WTF. more than one line returned for find_pound_if"
-  print inc
+  print("WTF. more than one line returned for find_pound_if")
+  print(inc)
   sys.exit(5)
 
 
@@ -248,8 +248,8 @@ def find_gcc_bld_dir (path):
     for y in files:
       p = os.path.dirname (y)
       if os.path.basename (p) == "gcc":
-	blddir = p
-	break
+        blddir = p
+        break
 
   return blddir
 
@@ -424,7 +424,7 @@ def find_replace_include (find, replace, src):
 # pass in a require and provide dictionary to be read in.
 def read_require_provides (require, provide):
   if not os.path.exists ("require-provide.master"):
-    print "require-provide.master file is not available. please run data collection."
+    print("require-provide.master file is not available. please run data collection.")
     sys.exit(1)
   incl_list = open("require-provide.master").read().splitlines()
   for f in incl_list:
@@ -501,7 +501,7 @@ def spawn_makes (command_list):
     c = subprocess.Popen(command, bufsize=-1, stdout=devnull, stderr=subprocess.PIPE, shell=True)
     proc_res.append ((c, tname))
 
-  print text[:-2]
+  print(text[:-2])
 
   for p in proc_res:
     output = p[0].communicate()
diff --git a/contrib/header-tools/included-by b/contrib/header-tools/included-by
index 9947fee6b2b..505b6fa91c2 100755
--- a/contrib/header-tools/included-by
+++ b/contrib/header-tools/included-by
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -43,7 +43,7 @@ for x in sys.argv[1:]:
     file_list = open (x[2:]).read().splitlines()
     scanfiles = False
   elif x[0] == "-":
-    print "Error: Unknown option " + x
+    print("Error: Unknown option " + x)
     usage = True
   else:
     src.append (x)
@@ -89,21 +89,21 @@ if not usage:
     if len (careabout) < num_match:
         output = ""
     if output != "":
-      print output
+      print(output)
 else:
-  print "included-by [-h] [-i] [-c] [-v] [-a] [-nx] file1 [file2] ... [filen]"
-  print "find the list of all files in subdirectories that include any of "
-  print "the listed files. processed to a depth of 3 subdirs"
-  print " -h  : Show this message"
-  print " -i  : process only header files (*.h) for #include"
-  print " -c  : process only source files (*.c *.cc) for #include"
-  print "       If nothing is specified, defaults to -i -c"
-  print " -s  : Same as -c."
-  print " -v  : Show which include(s) were found"
-  print " -nx : Only list files which have at least x different matches. Default = 1"
-  print " -a  : Show only files which all listed files are included"
-  print "       This is equivilent to -nT where T == # of items in list"
-  print " -flistfile  : Show only files contained in the list of files"
+  print("included-by [-h] [-i] [-c] [-v] [-a] [-nx] file1 [file2] ... [filen]")
+  print("find the list of all files in subdirectories that include any of ")
+  print("the listed files. processed to a depth of 3 subdirs")
+  print(" -h  : Show this message")
+  print(" -i  : process only header files (*.h) for #include")
+  print(" -c  : process only source files (*.c *.cc) for #include")
+  print("       If nothing is specified, defaults to -i -c")
+  print(" -s  : Same as -c.")
+  print(" -v  : Show which include(s) were found")
+  print(" -nx : Only list files which have at least x different matches. Default = 1")
+  print(" -a  : Show only files which all listed files are included")
+  print("       This is equivilent to -nT where T == # of items in list")
+  print(" -flistfile  : Show only files contained in the list of files")
 
  
 
diff --git a/contrib/header-tools/reduce-headers b/contrib/header-tools/reduce-headers
index 7d236e30688..e1c809ad904 100755
--- a/contrib/header-tools/reduce-headers
+++ b/contrib/header-tools/reduce-headers
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -177,7 +177,7 @@ def build_target_dict (bld_dir, just_these):
         target = t.strip()
         tpath = bld_dir + "/" + target
         if not os.path.exists (tpath + "/gcc"):
-          print "Error: gcc build directory for target " + t + " Does not exist: " + tpath + "/gcc"
+          print("Error: gcc build directory for target " + t + " Does not exist: " + tpath + "/gcc")
           error = True
         else:
           target_dict[target] = tpath
@@ -209,7 +209,7 @@ def find_targets (src_file):
   targ_list = list()
   obj_name = get_obj_name (src_file)
   if not obj_name:
-    print "Error: " + src_file + " - Cannot determine object name."
+    print("Error: " + src_file + " - Cannot determine object name.")
     return list()
 
   # Put the high priority targets which tend to trigger failures first
@@ -263,22 +263,22 @@ def try_to_remove (src_file, h_list, verbose):
         hostbuild = True
       if not target_dict:
         summary = src_file + ": Target builds are required for config files.  None found."
-        print summary
+        print(summary)
         return summary
       if not targ_list:
         summary =src_file + ": Cannot find any targets which build this file."
-        print summary
+        print(summary)
         return summary
 
     if hostbuild:
       # confirm it actually builds before we do anything
-      print "Confirming source file builds"
+      print("Confirming source file builds")
       res = get_make_output (build_dir + "/gcc", "all")
       if res[0] != 0:
         message = "Error: " + src_file + " does not build currently."
         summary = src_file + " does not build on host."
-        print message
-        print res[1]
+        print(message)
+        print(res[1])
         if verbose:
           verbose.write (message + "\n")
           verbose.write (res[1]+ "\n")
@@ -314,7 +314,7 @@ def try_to_remove (src_file, h_list, verbose):
         lookfor = ii_src_line(src_info)[inc_file]
         src_tmp.remove (lookfor)
         message = "Trying " + src_file + " without " + inc_file
-        print message
+        print(message)
         if verbose:
           verbose.write (message + "\n")
         out = open(src_file, "w")
@@ -350,7 +350,7 @@ def try_to_remove (src_file, h_list, verbose):
               message = "Passed host and target builds"
 
         if keep:
-          print message + "\n"
+          print(message + "\n")
 
         if (rc != 0):
           if verbose:
@@ -392,7 +392,7 @@ def try_to_remove (src_file, h_list, verbose):
           if ii_path(iinfo) == "build" and not target_dict:
             keep = True
             text = message + " : Will not remove a build file without some targets."
-            print text
+            print(text)
             ilog = open(src_file+".log","a")
             ilog.write (text +"\n")
             ilog.write ("============================================\n");
@@ -414,7 +414,7 @@ def try_to_remove (src_file, h_list, verbose):
                     text = message + ", but must keep " + inc_file + " because it provides " + dep 
                     if because.get(dep) != None:
                       text = text + " Possibly required by " + because[dep]
-                    print text
+                    print(text)
                     ilog = open(inc_file+".log","a")
                     ilog.write (because[dep]+": Requires [dep] in "+src_file+"\n")
                     ilog.write ("============================================\n");
@@ -444,7 +444,7 @@ def try_to_remove (src_file, h_list, verbose):
 
           src_tmp = copy.deepcopy (src_data)
         else:
-          print message + "  --> removing " + inc_file + "\n"
+          print(message + "  --> removing " + inc_file + "\n")
           rmcount += 1
           if verbose:
             verbose.write (message + "  --> removing " + inc_file + "\n")
@@ -454,7 +454,7 @@ def try_to_remove (src_file, h_list, verbose):
             remove_count[inc_file] += 1
           src_data = copy.deepcopy (src_tmp)
     except:
-      print "Interuption: restoring original file"
+      print("Interuption: restoring original file")
       out = open(src_file, "w")
       for line in src_orig:
         out.write (line)
@@ -473,8 +473,8 @@ def try_to_remove (src_file, h_list, verbose):
       rc = res[0]
       if (rc != 0):
         # host build failed! return to original version
-        print "Error: " + src_file + " Failed to bootstrap at end!!! restoring."
-        print "        Bad version at " + src_file + ".bad"
+        print("Error: " + src_file + " Failed to bootstrap at end!!! restoring.")
+        print("        Bad version at " + src_file + ".bad")
         os.rename (src_file, src_file + ".bad")
         out = open(src_file, "w")
         for line in src_orig:
@@ -486,7 +486,7 @@ def try_to_remove (src_file, h_list, verbose):
       summary = src_file + ": No change."
     else:
       summary = src_file + ": Reduction performed, "+str(rmcount)+" includes removed."
-  print summary
+  print(summary)
   return summary
 
 only_h = list ()
@@ -513,11 +513,11 @@ for x in sys.argv[1:]:
   elif x[0:2] == "-t":
     target_dir = x[2:]
   elif x[0] == "-":
-    print "Error:  Unrecognized option " + x
+    print("Error:  Unrecognized option " + x)
     usgae = True
   else:
     if not os.path.exists (x):
-      print "Error: specified file " + x + " does not exist."
+      print("Error: specified file " + x + " does not exist.")
       usage = True
     else:
       src.append (x)
@@ -526,50 +526,50 @@ if target_dir:
   build_target_dict (target_dir, only_targs)
 
 if build_dir == "" and target_dir == "":
-  print "Error: Must specify a build directory, and/or a target directory."
+  print("Error: Must specify a build directory, and/or a target directory.")
   usage = True
 
 if build_dir and not os.path.exists (build_dir):
-    print "Error: specified build directory does not exist : " + build_dir
+    print("Error: specified build directory does not exist : " + build_dir)
     usage = True
 
 if target_dir and not os.path.exists (target_dir):
-    print "Error: specified target directory does not exist : " + target_dir
+    print("Error: specified target directory does not exist : " + target_dir)
     usage = True
 
 if usage:
-  print "Attempts to remove extraneous include files from source files."
-  print " "
-  print "Should be run from the main gcc source directory, and works on a target"
-  print "directory, as we attempt to make the 'all' target."
-  print " "
-  print "By default, gcc-reorder-includes is run on each file before attempting"
-  print "to remove includes. this removes duplicates and puts some headers in a"
-  print "canonical ordering"
-  print " "
-  print "The build directory should be ready to compile via make. Time is saved"
-  print "if the build is already complete, so that only changes need to be built."
-  print " "
-  print "Usage: [options] file1.c [file2.c] ... [filen.c]"
-  print "      -bdir    : the root build directory to attempt buiding .o files."
-  print "      -tdir    : the target build directory"
-  print "      -d       : Ignore conditional macro dependencies."
-  print " "
-  print "      -Dmacro  : Ignore a specific macro for dependencies"
-  print "      -Ttarget : Only consider target in target directory."
-  print "      -fheader : Specifies a specific .h file to be considered."
-  print " "
-  print "      -D, -T, and -f can be specified mulitple times and are aggregated."
-  print " "
-  print "  The original file will be in filen.bak"
-  print " "
+  print("Attempts to remove extraneous include files from source files.")
+  print(" ")
+  print("Should be run from the main gcc source directory, and works on a target")
+  print("directory, as we attempt to make the 'all' target.")
+  print(" ")
+  print("By default, gcc-reorder-includes is run on each file before attempting")
+  print("to remove includes. this removes duplicates and puts some headers in a")
+  print("canonical ordering")
+  print(" ")
+  print("The build directory should be ready to compile via make. Time is saved")
+  print("if the build is already complete, so that only changes need to be built.")
+  print(" ")
+  print("Usage: [options] file1.c [file2.c] ... [filen.c]")
+  print("      -bdir    : the root build directory to attempt buiding .o files.")
+  print("      -tdir    : the target build directory")
+  print("      -d       : Ignore conditional macro dependencies.")
+  print(" ")
+  print("      -Dmacro  : Ignore a specific macro for dependencies")
+  print("      -Ttarget : Only consider target in target directory.")
+  print("      -fheader : Specifies a specific .h file to be considered.")
+  print(" ")
+  print("      -D, -T, and -f can be specified mulitple times and are aggregated.")
+  print(" ")
+  print("  The original file will be in filen.bak")
+  print(" ")
   sys.exit (0)
  
 if only_h:
-  print "Attempting to remove only these files:"
+  print("Attempting to remove only these files:")
   for x in only_h:
-    print x
-  print " "
+    print(x)
+  print(" ")
 
 logfile = open("reduce-headers.log","w")
 
@@ -583,7 +583,7 @@ ilog = open("reduce-headers.sum","a")
 ilog.write ("===============================================================\n")
 for x in remove_count:
   msg = x + ": Removed " + str(remove_count[x]) + " times."
-  print msg
+  print(msg)
   logfile.write (msg + "\n")
   ilog.write (msg + "\n")
 
diff --git a/contrib/header-tools/replace-header b/contrib/header-tools/replace-header
index ce20096a453..fd07d2c88e5 100755
--- a/contrib/header-tools/replace-header
+++ b/contrib/header-tools/replace-header
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -20,7 +20,7 @@ for x in sys.argv[1:]:
   elif x[0:2] == "-r":
     replace.append (x[2:])
   elif x[0:1] == "-":
-    print "Error: unrecognized option " + x
+    print("Error: unrecognized option " + x)
     usage = True
   else:
     files.append (x)
@@ -29,25 +29,25 @@ if find == "":
   usage = True
 
 if usage:
-  print "replace-header -fheader -rheader [-rheader] file1 [filen.]"
+  print("replace-header -fheader -rheader [-rheader] file1 [filen.]")
   sys.exit(0)
 
 string = ""
 for x in replace:
   string = string + " '"+x+"'"
-print "Replacing '"+find+"'  with"+string
+print("Replacing '"+find+"'  with"+string)
 
 for x in files:
   src = readwholefile (x)
   src = find_replace_include (find, replace, src)
   if (len(src) > 0):
-    print x + ": Changed"
+    print(x + ": Changed")
     out = open(x, "w")
     for line in src:
       out.write (line);
     out.close ()
   else:
-    print x
+    print(x)
 
 
 
diff --git a/contrib/header-tools/show-headers b/contrib/header-tools/show-headers
index cb949ec1f44..86eceec71b6 100755
--- a/contrib/header-tools/show-headers
+++ b/contrib/header-tools/show-headers
@@ -1,4 +1,4 @@
-#! /usr/bin/python2
+#! /usr/bin/python3
 import os.path
 import sys
 import shlex
@@ -93,17 +93,17 @@ for x in sys.argv[1:]:
 if len(src) != 1:
   usage = True
 elif not os.path.exists (src[0]):
-  print src[0] + ": Requested source file does not exist.\n"
+  print(src[0] + ": Requested source file does not exist.\n")
   usage = True
 
 if usage:
-  print "show-headers [-idir] [-sfilen] file1 "
-  print " "
-  print " Show a hierarchical visual format how many times each header file"
-  print " is included in a source file.  Should be run from the source directory"
-  print " files from find-include-depends"
-  print "      -s : search for a header, and point it out."
-  print "      -i : Specifies additonal directories to search for includes."
+  print("show-headers [-idir] [-sfilen] file1 ")
+  print(" ")
+  print(" Show a hierarchical visual format how many times each header file")
+  print(" is included in a source file.  Should be run from the source directory")
+  print(" files from find-include-depends")
+  print("      -s : search for a header, and point it out.")
+  print("      -i : Specifies additonal directories to search for includes.")
   sys.exit(0)
 
 
@@ -114,10 +114,10 @@ if extradir:
 blddir = find_gcc_bld_dir ("../..")
 
 if blddir:
-  print "Using build directory: " + blddir
+  print("Using build directory: " + blddir)
   incl_dirs.insert (0, blddir)
 else:
-  print "Could not find a build directory, better results if you specify one with -i"
+  print("Could not find a build directory, better results if you specify one with -i")
 
 # search path is now ".", blddir, extradirs_from_-i, built_in_incl_dirs
 incl_dirs.insert (0, ".")
@@ -137,15 +137,15 @@ for line in data:
   if d and d[-2:] == ".h":
     process_include (d, 1)
 
-print "\n" + x
+print("\n" + x)
 for line in output:
-  print line
+  print(line)
 
 if highlight:
-  print " "
+  print(" ")
   for h in summary:
-    print h + " is included by source file."
+    print(h + " is included by source file.")
   for h in highlight:
     if h not in summary:
-      print h + " is not included by source file."
+      print(h + " is not included by source file.")
 
