diff --git a/clang-tools-extra/clang-include-fixer/find-all-symbols/tool/run-find-all-symbols.py b/clang-tools-extra/clang-include-fixer/find-all-symbols/tool/run-find-all-symbols.py
--- a/clang-tools-extra/clang-include-fixer/find-all-symbols/tool/run-find-all-symbols.py
+++ b/clang-tools-extra/clang-include-fixer/find-all-symbols/tool/run-find-all-symbols.py
@@ -22,6 +22,8 @@
 http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html
 """
 
+from __future__ import print_function
+
 import argparse
 import json
 import multiprocessing
@@ -39,7 +41,7 @@
   result = './'
   while not os.path.isfile(os.path.join(result, path)):
     if os.path.realpath(result) == '/':
-      print 'Error: could not find compilation database.'
+      print('Error: could not find compilation database.', file=sys.stderr)
       sys.exit(1)
     result += '../'
   return os.path.realpath(result)
@@ -49,7 +51,7 @@
   """Merge all symbol files (yaml) in a given directory into a single file."""
   invocation = [args.binary, '-merge-dir='+directory, args.saving_path]
   subprocess.call(invocation)
-  print 'Merge is finished. Saving results in ' + args.saving_path
+  print('Merge is finished. Saving results in ' + args.saving_path)
 
 
 def run_find_all_symbols(args, tmpdir, build_path, queue):
@@ -118,7 +120,7 @@
   except KeyboardInterrupt:
     # This is a sad hack. Unfortunately subprocess goes
     # bonkers with ctrl-c and we start forking merrily.
-    print '\nCtrl-C detected, goodbye.'
+    print('\nCtrl-C detected, goodbye.')
     os.kill(0, 9)
 
 
diff --git a/clang-tools-extra/clangd/include-mapping/gen_std.py b/clang-tools-extra/clangd/include-mapping/gen_std.py
--- a/clang-tools-extra/clangd/include-mapping/gen_std.py
+++ b/clang-tools-extra/clangd/include-mapping/gen_std.py
@@ -99,12 +99,12 @@
   index_page_path = os.path.join(page_root, "index.html")
   cppreference_modified_date = datetime.datetime.fromtimestamp(
     os.stat(index_page_path).st_mtime).strftime('%Y-%m-%d')
-  print CODE_PREFIX % (args.language.upper(), cppreference_modified_date)
+  print(CODE_PREFIX % (args.language.upper(), cppreference_modified_date))
   for symbol in symbols:
     if len(symbol.headers) == 1:
       # SYMBOL(unqualified_name, namespace, header)
-      print "SYMBOL(%s, %s, %s)" % (symbol.name, symbol.namespace,
-                                    symbol.headers[0])
+      print("SYMBOL(%s, %s, %s)" % (symbol.name, symbol.namespace,
+                                    symbol.headers[0]))
     elif len(symbol.headers) == 0:
       sys.stderr.write("No header found for symbol %s\n" % symbol.name)
     else:
diff --git a/compiler-rt/lib/dfsan/scripts/build-libc-list.py b/compiler-rt/lib/dfsan/scripts/build-libc-list.py
--- a/compiler-rt/lib/dfsan/scripts/build-libc-list.py
+++ b/compiler-rt/lib/dfsan/scripts/build-libc-list.py
@@ -11,6 +11,8 @@
 # uninstrumented, thus allowing the instrumentation pass to treat calls to those
 # functions correctly.
 
+from __future__ import print_function
+
 import os
 import subprocess
 import sys
@@ -86,10 +88,10 @@
   if os.path.exists(l):
     functions += defined_function_list(l)
   else:
-    print >> sys.stderr, 'warning: library %s not found' % l
+    print('warning: library %s not found' % l, file=sys.stderr)
 
 functions = list(set(functions))
 functions.sort()
 
 for f in functions:
-  print 'fun:%s=uninstrumented' % f
+  print('fun:%s=uninstrumented' % f)
diff --git a/compiler-rt/test/sanitizer_common/android_commands/android_common.py b/compiler-rt/test/sanitizer_common/android_commands/android_common.py
--- a/compiler-rt/test/sanitizer_common/android_commands/android_common.py
+++ b/compiler-rt/test/sanitizer_common/android_commands/android_common.py
@@ -15,7 +15,7 @@
 
 def adb(args, attempts = 1):
     if verbose:
-        print args
+        print(args)
     tmpname = tempfile.mktemp()
     out = open(tmpname, 'w')
     ret = 255
@@ -25,11 +25,11 @@
       if attempts != 0:
         ret = 5
     if ret != 0:
-      print "adb command failed", args
-      print tmpname
+      print("adb command failed", args)
+      print(tmpname)
       out.close()
       out = open(tmpname, 'r')
-      print out.read()
+      print(out.read())
     out.close()
     os.unlink(tmpname)
     return ret
diff --git a/compiler-rt/test/sanitizer_common/android_commands/android_compile.py b/compiler-rt/test/sanitizer_common/android_commands/android_compile.py
--- a/compiler-rt/test/sanitizer_common/android_commands/android_compile.py
+++ b/compiler-rt/test/sanitizer_common/android_commands/android_compile.py
@@ -21,7 +21,7 @@
         output = args.pop(0)
 
 if output == None:
-    print "No output file name!"
+    print('No output file name!')
     sys.exit(1)
 
 ret = subprocess.call(sys.argv[1:])
diff --git a/compiler-rt/test/sanitizer_common/ios_commands/iossim_compile.py b/compiler-rt/test/sanitizer_common/ios_commands/iossim_compile.py
--- a/compiler-rt/test/sanitizer_common/ios_commands/iossim_compile.py
+++ b/compiler-rt/test/sanitizer_common/ios_commands/iossim_compile.py
@@ -20,7 +20,7 @@
         output = args.pop(0)
 
 if output == None:
-    print "No output file name!"
+    print('No output file name!')
     sys.exit(1)
 
 ret = subprocess.call(sys.argv[1:])
diff --git a/debuginfo-tests/llgdb-tests/llgdb.py b/debuginfo-tests/llgdb-tests/llgdb.py
--- a/debuginfo-tests/llgdb-tests/llgdb.py
+++ b/debuginfo-tests/llgdb-tests/llgdb.py
@@ -34,11 +34,11 @@
                 except ImportError:
                     pass
                 else:
-                    print 'imported lldb from: "%s"' % (lldb_python_dir)
+                    print('imported lldb from: "%s"' % (lldb_python_dir))
                     success = True
                     break
     if not success:
-        print "error: couldn't locate the 'lldb' module, please set PYTHONPATH correctly"
+        print("error: couldn't locate the 'lldb' module, please set PYTHONPATH correctly")
         sys.exit(1)
 # ----------------------------------------------------------------------
 
diff --git a/lldb/utils/lui/lldbutil.py b/lldb/utils/lui/lldbutil.py
--- a/lldb/utils/lui/lldbutil.py
+++ b/lldb/utils/lui/lldbutil.py
@@ -919,7 +919,7 @@
         from lldbutil import get_GPRs
         regs = get_GPRs(frame)
         for reg in regs:
-            print "%s => %s" % (reg.GetName(), reg.GetValue())
+            print("%s => %s" % (reg.GetName(), reg.GetValue()))
         ...
     """
     return get_registers(frame, "general purpose")
@@ -933,7 +933,7 @@
         from lldbutil import get_FPRs
         regs = get_FPRs(frame)
         for reg in regs:
-            print "%s => %s" % (reg.GetName(), reg.GetValue())
+            print("%s => %s" % (reg.GetName(), reg.GetValue()))
         ...
     """
     return get_registers(frame, "floating point")
@@ -947,7 +947,7 @@
         from lldbutil import get_ESRs
         regs = get_ESRs(frame)
         for reg in regs:
-            print "%s => %s" % (reg.GetName(), reg.GetValue())
+            print("%s => %s" % (reg.GetName(), reg.GetValue()))
         ...
     """
     return get_registers(frame, "exception state")
diff --git a/llvm/bindings/python/llvm/object.py b/llvm/bindings/python/llvm/object.py
--- a/llvm/bindings/python/llvm/object.py
+++ b/llvm/bindings/python/llvm/object.py
@@ -57,22 +57,22 @@
     # This is NOT OK. You perform a lookup after the object has expired.
     symbols = list(obj.get_symbols())
     for symbol in symbols:
-        print symbol.name # This raises because the object has expired.
+        print(symbol.name) # This raises because the object has expired.
 
     # In this example, we mix a working and failing scenario.
     symbols = []
     for symbol in obj.get_symbols():
         symbols.append(symbol)
-        print symbol.name
+        print(symbol.name)
 
     for symbol in symbols:
-        print symbol.name # OK
+        print(symbol.name) # OK
         print symbol.address # NOT OK. We didn't look up this property before.
 
     # Cache everything up front.
     symbols = list(obj.get_symbols(cache=True))
     for symbol in symbols:
-        print symbol.name # OK
+        print(symbol.name) # OK
 
 """
 
diff --git a/openmp/runtime/tools/summarizeStats.py b/openmp/runtime/tools/summarizeStats.py
--- a/openmp/runtime/tools/summarizeStats.py
+++ b/openmp/runtime/tools/summarizeStats.py
@@ -143,7 +143,7 @@
             res["counters"] = readCounters(f)
             return res
     except (OSError, IOError):
-        print "Cannot open " + fname
+        print("Cannot open " + fname)
         return None
 
 def usefulValues(l):
@@ -235,7 +235,7 @@
             compKeys[key] = data[key]
         else:
             nonCompKeys[key] = data[key]
-    print "comp keys:", compKeys, "\n\n non comp keys:", nonCompKeys
+    print("comp keys:", compKeys, "\n\n non comp keys:", nonCompKeys)
     return [compKeys, nonCompKeys]
 
 def drawMainPie(data, filebase, colors):
@@ -301,7 +301,7 @@
                 """radar Charts finish here"""
                 plt.savefig(filebase+"_"+s+"_"+chartType, bbox_inches='tight')
             elif s == 'timers':
-                print "overheads in "+filebase
+                print("overheads in " + filebase)
                 numThreads = tmp[s]['SampleCount']['Total_OMP_parallel']
                 for key in data.keys():
                     if key[0:5] == 'Total':
diff --git a/polly/utils/jscop2cloog.py b/polly/utils/jscop2cloog.py
--- a/polly/utils/jscop2cloog.py
+++ b/polly/utils/jscop2cloog.py
@@ -50,7 +50,7 @@
   context = scop['context']
   domains = getDomains(scop)
   schedules = getSchedules(scop)
-  print template % (context, domains, schedules)
+  print(template % (context, domains, schedules))
 
 def __main__():
   description = 'Translate JSCoP into iscc input'
diff --git a/polly/utils/pyscop/jscop2iscc.py b/polly/utils/pyscop/jscop2iscc.py
--- a/polly/utils/pyscop/jscop2iscc.py
+++ b/polly/utils/pyscop/jscop2iscc.py
@@ -1,4 +1,7 @@
 #!/usr/bin/env python
+
+from __future__ import print_function
+
 import argparse, isl, os
 import json
 
@@ -9,8 +12,8 @@
   for statement in scop['statements']:
     domain = domain.union(isl.USet(statement['domain']))
 
-  print "D :=",
-  print str(domain) + ";"
+  print('D :=', end='')
+  print(str(domain) + ';')
 
 def printAccesses(scop):
 
@@ -21,8 +24,8 @@
       if access['kind'] == 'read':
         read = read.union(isl.UMap(access['relation']))
 
-  print "R :=",
-  print str(read) + ";"
+  print('R :=', end='')
+  print(str(read) + ';')
 
   write = isl.UMap('{}')
 
@@ -31,8 +34,8 @@
       if access['kind'] == 'write':
         write = write.union(isl.UMap(access['relation']))
 
-  print "W :=",
-  print str(write) + ";"
+  print('W :=', end='')
+  print(str(write) + ';')
 
 def printSchedule(scop):
 
@@ -41,8 +44,8 @@
   for statement in scop['statements']:
     schedule = schedule.union(isl.UMap(statement['schedule']))
 
-  print "S :=",
-  print str(schedule) + ";"
+  print('S :=', end='')
+  print(str(schedule) + ';')
 
 def __main__():
   description = 'Translate JSCoP into iscc input'
@@ -58,10 +61,10 @@
   printAccesses(scop)
   printSchedule(scop)
 
-  print 'R := R * D;'
-  print 'W := W * D;'
-  print 'Dep := (last W before R under S)[0];'
-  print 'schedule D respecting Dep minimizing Dep;'
+  print('R := R * D;')
+  print('W := W * D;')
+  print('Dep := (last W before R under S)[0];')
+  print('schedule D respecting Dep minimizing Dep;')
 
 
 __main__()