diff --git a/tools/releasetools/add_img_to_target_files.py b/tools/releasetools/add_img_to_target_files.py
index 8309463..c80d4bd 100755
--- a/tools/releasetools/add_img_to_target_files.py
+++ b/tools/releasetools/add_img_to_target_files.py
@@ -43,10 +43,12 @@
       are signing the target files.
 """
 
+from __future__ import print_function
+
 import sys
 
 if sys.hexversion < 0x02070000:
-  print >> sys.stderr, "Python 2.7 or newer is required."
+  print("Python 2.7 or newer is required.", file=sys.stderr)
   sys.exit(1)
 
 import datetime
@@ -89,7 +91,7 @@
 
   prebuilt_path = os.path.join(OPTIONS.input_tmp, prefix, "system.img")
   if os.path.exists(prebuilt_path):
-    print "system.img already exists in %s, no need to rebuild..." % (prefix,)
+    print("system.img already exists in %s, no need to rebuild..." % (prefix,))
     return prebuilt_path
 
   def output_sink(fn, data):
@@ -98,7 +100,7 @@
     ofile.close()
 
   if OPTIONS.rebuild_recovery:
-    print "Building new recovery patch"
+    print("Building new recovery patch")
     common.MakeRecoveryPatch(OPTIONS.input_tmp, output_sink, recovery_img,
                              boot_img, info_dict=OPTIONS.info_dict)
 
@@ -123,7 +125,8 @@
 
   prebuilt_path = os.path.join(OPTIONS.input_tmp, prefix, "system_other.img")
   if os.path.exists(prebuilt_path):
-    print "system_other.img already exists in %s, no need to rebuild..." % (prefix,)
+    print("system_other.img already exists in %s, no need to rebuild..." % (
+        prefix,))
     return
 
   imgname = BuildSystemOther(OPTIONS.input_tmp, OPTIONS.info_dict)
@@ -141,7 +144,7 @@
 
   prebuilt_path = os.path.join(OPTIONS.input_tmp, prefix, "vendor.img")
   if os.path.exists(prebuilt_path):
-    print "vendor.img already exists in %s, no need to rebuild..." % (prefix,)
+    print("vendor.img already exists in %s, no need to rebuild..." % (prefix,))
     return prebuilt_path
 
   block_list = common.MakeTempFile(prefix="vendor-blocklist-", suffix=".map")
@@ -159,7 +162,7 @@
 
 
 def CreateImage(input_dir, info_dict, what, block_list=None):
-  print "creating " + what + ".img..."
+  print("creating " + what + ".img...")
 
   img = common.MakeTempFile(prefix=what + "-", suffix=".img")
 
@@ -223,7 +226,8 @@
 
   prebuilt_path = os.path.join(OPTIONS.input_tmp, prefix, "userdata.img")
   if os.path.exists(prebuilt_path):
-    print "userdata.img already exists in %s, no need to rebuild..." % (prefix,)
+    print("userdata.img already exists in %s, no need to rebuild..." % (
+        prefix,))
     return
 
   # Skip userdata.img if no size.
@@ -231,7 +235,7 @@
   if not image_props.get("partition_size"):
     return
 
-  print "creating userdata.img..."
+  print("creating userdata.img...")
 
   # Use a fixed timestamp (01/01/2009) when packaging the image.
   # Bug: 24377993
@@ -321,7 +325,7 @@
 
   prebuilt_path = os.path.join(OPTIONS.input_tmp, prefix, "cache.img")
   if os.path.exists(prebuilt_path):
-    print "cache.img already exists in %s, no need to rebuild..." % (prefix,)
+    print("cache.img already exists in %s, no need to rebuild..." % (prefix,))
     return
 
   image_props = build_image.ImagePropFromGlobalDict(OPTIONS.info_dict, "cache")
@@ -329,7 +333,7 @@
   if "fs_type" not in image_props:
     return
 
-  print "creating cache.img..."
+  print("creating cache.img...")
 
   # Use a fixed timestamp (01/01/2009) when packaging the image.
   # Bug: 24377993
@@ -364,7 +368,7 @@
   if not OPTIONS.add_missing:
     for n in input_zip.namelist():
       if n.startswith("IMAGES/"):
-        print "target_files appears to already contain images."
+        print("target_files appears to already contain images.")
         sys.exit(1)
 
   try:
@@ -386,13 +390,13 @@
   system_root_image = (OPTIONS.info_dict.get("system_root_image", None) == "true")
 
   def banner(s):
-    print "\n\n++++ " + s + " ++++\n\n"
+    print("\n\n++++ " + s + " ++++\n\n")
 
   prebuilt_path = os.path.join(OPTIONS.input_tmp, "IMAGES", "boot.img")
   boot_image = None
   if os.path.exists(prebuilt_path):
     banner("boot")
-    print "boot.img already exists in IMAGES/, no need to rebuild..."
+    print("boot.img already exists in IMAGES/, no need to rebuild...")
     if OPTIONS.rebuild_recovery:
       boot_image = common.GetBootableImage(
           "IMAGES/boot.img", "boot.img", OPTIONS.input_tmp, "BOOT")
@@ -408,7 +412,7 @@
     banner("recovery")
     prebuilt_path = os.path.join(OPTIONS.input_tmp, "IMAGES", "recovery.img")
     if os.path.exists(prebuilt_path):
-      print "recovery.img already exists in IMAGES/, no need to rebuild..."
+      print("recovery.img already exists in IMAGES/, no need to rebuild...")
       if OPTIONS.rebuild_recovery:
         recovery_image = common.GetBootableImage(
             "IMAGES/recovery.img", "recovery.img", OPTIONS.input_tmp,
@@ -474,7 +478,7 @@
       img_name = line.strip() + ".img"
       prebuilt_path = os.path.join(OPTIONS.input_tmp, "IMAGES", img_name)
       if os.path.exists(prebuilt_path):
-        print "%s already exists, no need to overwrite..." % (img_name,)
+        print("%s already exists, no need to overwrite..." % (img_name,))
         continue
 
       img_radio_path = os.path.join(OPTIONS.input_tmp, "RADIO", img_name)
@@ -530,16 +534,14 @@
     sys.exit(1)
 
   AddImagesToTargetFiles(args[0])
-  print "done."
+  print("done.")
 
 if __name__ == '__main__':
   try:
     common.CloseInheritedPipes()
     main(sys.argv[1:])
   except common.ExternalError as e:
-    print
-    print "   ERROR: %s" % (e,)
-    print
+    print("\n   ERROR: %s\n" % (e,))
     sys.exit(1)
   finally:
     common.Cleanup()
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 4ad30ec..7b3e9ba 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import print_function
+
 import copy
 import errno
 import getopt
@@ -109,7 +111,7 @@
   """Create and return a subprocess.Popen object, printing the command
   line on the terminal if -v was specified."""
   if OPTIONS.verbose:
-    print "  running: ", " ".join(args)
+    print("  running: ", " ".join(args))
   return subprocess.Popen(args, **kwargs)
 
 
@@ -208,8 +210,8 @@
       if os.path.exists(system_base_fs_file):
         d["system_base_fs_file"] = system_base_fs_file
       else:
-        print "Warning: failed to find system base fs file: %s" % (
-            system_base_fs_file,)
+        print("Warning: failed to find system base fs file: %s" % (
+            system_base_fs_file,))
         del d["system_base_fs_file"]
 
     if "vendor_base_fs_file" in d:
@@ -218,8 +220,8 @@
       if os.path.exists(vendor_base_fs_file):
         d["vendor_base_fs_file"] = vendor_base_fs_file
       else:
-        print "Warning: failed to find vendor base fs file: %s" % (
-            vendor_base_fs_file,)
+        print("Warning: failed to find vendor base fs file: %s" % (
+            vendor_base_fs_file,))
         del d["vendor_base_fs_file"]
 
   try:
@@ -270,7 +272,7 @@
   try:
     data = read_helper("SYSTEM/build.prop")
   except KeyError:
-    print "Warning: could not find SYSTEM/build.prop in %s" % zip
+    print("Warning: could not find SYSTEM/build.prop in %s" % (zip,))
     data = ""
   return LoadDictionaryFromLines(data.split("\n"))
 
@@ -299,7 +301,7 @@
   try:
     data = read_helper(recovery_fstab_path)
   except KeyError:
-    print "Warning: could not find {}".format(recovery_fstab_path)
+    print("Warning: could not find {}".format(recovery_fstab_path))
     data = ""
 
   if fstab_version == 1:
@@ -331,7 +333,7 @@
           if i.startswith("length="):
             length = int(i[7:])
           else:
-            print "%s: unknown option \"%s\"" % (mount_point, i)
+            print("%s: unknown option \"%s\"" % (mount_point, i))
 
       d[mount_point] = Partition(mount_point=mount_point, fs_type=pieces[1],
                                  device=pieces[2], length=length,
@@ -389,7 +391,7 @@
 
 def DumpInfoDict(d):
   for k, v in sorted(d.items()):
-    print "%-25s = (%s) %s" % (k, type(v).__name__, v)
+    print("%-25s = (%s) %s" % (k, type(v).__name__, v))
 
 
 def AppendAVBSigningArgs(cmd):
@@ -565,15 +567,15 @@
 
   prebuilt_path = os.path.join(unpack_dir, "BOOTABLE_IMAGES", prebuilt_name)
   if os.path.exists(prebuilt_path):
-    print "using prebuilt %s from BOOTABLE_IMAGES..." % (prebuilt_name,)
+    print("using prebuilt %s from BOOTABLE_IMAGES..." % (prebuilt_name,))
     return File.FromLocalFile(name, prebuilt_path)
 
   prebuilt_path = os.path.join(unpack_dir, "IMAGES", prebuilt_name)
   if os.path.exists(prebuilt_path):
-    print "using prebuilt %s from IMAGES..." % (prebuilt_name,)
+    print("using prebuilt %s from IMAGES..." % (prebuilt_name,))
     return File.FromLocalFile(name, prebuilt_path)
 
-  print "building image from target_files %s..." % (tree_subdir,)
+  print("building image from target_files %s..." % (tree_subdir,))
 
   if info_dict is None:
     info_dict = OPTIONS.info_dict
@@ -792,11 +794,9 @@
   if pct >= 99.0:
     raise ExternalError(msg)
   elif pct >= 95.0:
-    print
-    print "  WARNING: ", msg
-    print
+    print("\n  WARNING: %s\n" % (msg,))
   elif OPTIONS.verbose:
-    print "  ", msg
+    print("  ", msg)
 
 
 def ReadApkCerts(tf_zip):
@@ -845,8 +845,8 @@
 """
 
 def Usage(docstring):
-  print docstring.rstrip("\n")
-  print COMMON_DOCSTRING
+  print(docstring.rstrip("\n"))
+  print(COMMON_DOCSTRING)
 
 
 def ParseOptions(argv,
@@ -871,7 +871,7 @@
         list(extra_long_opts))
   except getopt.GetoptError as err:
     Usage(docstring)
-    print "**", str(err), "**"
+    print("**", str(err), "**")
     sys.exit(2)
 
   for o, a in opts:
@@ -969,7 +969,7 @@
         current[i] = ""
 
       if not first:
-        print "key file %s still missing some passwords." % (self.pwfile,)
+        print("key file %s still missing some passwords." % (self.pwfile,))
         answer = raw_input("try to edit again? [y]> ").strip()
         if answer and answer[0] not in 'yY':
           raise RuntimeError("key passwords unavailable")
@@ -1029,13 +1029,13 @@
           continue
         m = re.match(r"^\[\[\[\s*(.*?)\s*\]\]\]\s*(\S+)$", line)
         if not m:
-          print "failed to parse password file: ", line
+          print("failed to parse password file: ", line)
         else:
           result[m.group(2)] = m.group(1)
       f.close()
     except IOError as e:
       if e.errno != errno.ENOENT:
-        print "error reading password file: ", str(e)
+        print("error reading password file: ", str(e))
     return result
 
 
@@ -1156,10 +1156,10 @@
           if x == ".py":
             f = b
           info = imp.find_module(f, [d])
-        print "loaded device-specific extensions from", path
+        print("loaded device-specific extensions from", path)
         self.module = imp.load_module("device_specific", *info)
       except ImportError:
-        print "unable to load device-specific module; assuming none"
+        print("unable to load device-specific module; assuming none")
 
   def _DoCall(self, function_name, *args, **kwargs):
     """Call the named function in the device-specific module, passing
@@ -1294,7 +1294,7 @@
       th.start()
       th.join(timeout=300)   # 5 mins
       if th.is_alive():
-        print "WARNING: diff command timed out"
+        print("WARNING: diff command timed out")
         p.terminate()
         th.join(5)
         if th.is_alive():
@@ -1302,8 +1302,8 @@
           th.join()
 
       if err or p.returncode != 0:
-        print "WARNING: failure running %s:\n%s\n" % (
-            diff_program, "".join(err))
+        print("WARNING: failure running %s:\n%s\n" % (
+            diff_program, "".join(err)))
         self.patch = None
         return None, None, None
       diff = ptemp.read()
@@ -1325,7 +1325,7 @@
 
 def ComputeDifferences(diffs):
   """Call ComputePatch on all the Difference objects in 'diffs'."""
-  print len(diffs), "diffs to compute"
+  print(len(diffs), "diffs to compute")
 
   # Do the largest files first, to try and reduce the long-pole effect.
   by_size = [(i.tf.size, i) for i in diffs]
@@ -1351,13 +1351,13 @@
         else:
           name = "%s (%s)" % (tf.name, sf.name)
         if patch is None:
-          print "patching failed!                                  %s" % (name,)
+          print("patching failed!                                  %s" % (name,))
         else:
-          print "%8.2f sec %8d / %8d bytes (%6.2f%%) %s" % (
-              dur, len(patch), tf.size, 100.0 * len(patch) / tf.size, name)
+          print("%8.2f sec %8d / %8d bytes (%6.2f%%) %s" % (
+              dur, len(patch), tf.size, 100.0 * len(patch) / tf.size, name))
       lock.release()
     except Exception as e:
-      print e
+      print(e)
       raise
 
   # start worker threads; wait for them all to finish.
@@ -1736,6 +1736,6 @@
     if found:
       break
 
-  print "putting script in", sh_location
+  print("putting script in", sh_location)
 
   output_sink(sh_location, sh)
diff --git a/tools/releasetools/img_from_target_files.py b/tools/releasetools/img_from_target_files.py
index 84e0e63..fd98ad2 100755
--- a/tools/releasetools/img_from_target_files.py
+++ b/tools/releasetools/img_from_target_files.py
@@ -26,10 +26,12 @@
 
 """
 
+from __future__ import print_function
+
 import sys
 
 if sys.hexversion < 0x02070000:
-  print >> sys.stderr, "Python 2.7 or newer is required."
+  print("Python 2.7 or newer is required.", file=sys.stderr)
   sys.exit(1)
 
 import os
@@ -111,7 +113,7 @@
           recovery_image.AddToZip(output_zip)
 
       def banner(s):
-        print "\n\n++++ " + s + " ++++\n\n"
+        print("\n\n++++ " + s + " ++++\n\n")
 
       if not bootable_only:
         banner("AddSystem")
@@ -128,11 +130,11 @@
         add_img_to_target_files.AddCache(output_zip, prefix="")
 
   finally:
-    print "cleaning up..."
+    print("cleaning up...")
     common.ZipClose(output_zip)
     shutil.rmtree(OPTIONS.input_tmp)
 
-  print "done."
+  print("done.")
 
 
 if __name__ == '__main__':
@@ -140,7 +142,5 @@
     common.CloseInheritedPipes()
     main(sys.argv[1:])
   except common.ExternalError as e:
-    print
-    print "   ERROR: %s" % (e,)
-    print
+    print("\n   ERROR: %s\n" % (e,))
     sys.exit(1)
diff --git a/tools/releasetools/make_recovery_patch.py b/tools/releasetools/make_recovery_patch.py
index 08d1450..7c6007e 100755
--- a/tools/releasetools/make_recovery_patch.py
+++ b/tools/releasetools/make_recovery_patch.py
@@ -14,10 +14,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+from __future__ import print_function
+
 import sys
 
 if sys.hexversion < 0x02070000:
-  print >> sys.stderr, "Python 2.7 or newer is required."
+  print("Python 2.7 or newer is required.", file=sys.stderr)
   sys.exit(1)
 
 import os
diff --git a/tools/releasetools/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index 4d5b8b8..4292c71 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -121,10 +121,12 @@
       Specify the arguments needed for payload signer.
 """
 
+from __future__ import print_function
+
 import sys
 
 if sys.hexversion < 0x02070000:
-  print >> sys.stderr, "Python 2.7 or newer is required."
+  print("Python 2.7 or newer is required.", file=sys.stderr)
   sys.exit(1)
 
 import multiprocessing
@@ -292,14 +294,14 @@
 
   def Dump(self, indent=0):
     if self.uid is not None:
-      print "%s%s %d %d %o" % (
-          "  " * indent, self.name, self.uid, self.gid, self.mode)
+      print("%s%s %d %d %o" % (
+          "  " * indent, self.name, self.uid, self.gid, self.mode))
     else:
-      print "%s%s %s %s %s" % (
-          "  " * indent, self.name, self.uid, self.gid, self.mode)
+      print("%s%s %s %s %s" % (
+          "  " * indent, self.name, self.uid, self.gid, self.mode))
     if self.is_dir:
-      print "%s%s" % ("  "*indent, self.descendants)
-      print "%s%s" % ("  "*indent, self.best_subtree)
+      print("%s%s" % ("  " * indent, self.descendants))
+      print("%s%s" % ("  " * indent, self.best_subtree))
       for i in self.children:
         i.Dump(indent=indent+1)
 
@@ -485,11 +487,11 @@
         OPTIONS.input_tmp, "RECOVERY")
     common.ZipWriteStr(
         output_zip, recovery_two_step_img_name, recovery_two_step_img.data)
-    print "two-step package: using %s in stage 1/3" % (
-        recovery_two_step_img_name,)
+    print("two-step package: using %s in stage 1/3" % (
+        recovery_two_step_img_name,))
     script.WriteRawImage("/boot", recovery_two_step_img_name)
   else:
-    print "two-step package: using recovery.img in stage 1/3"
+    print("two-step package: using recovery.img in stage 1/3")
     # The "recovery.img" entry has been written into package earlier.
     script.WriteRawImage("/boot", "recovery.img")
 
@@ -533,11 +535,11 @@
   path = os.path.join(tmpdir, "IMAGES", which + ".img")
   mappath = os.path.join(tmpdir, "IMAGES", which + ".map")
   if os.path.exists(path) and os.path.exists(mappath):
-    print "using %s.img from target-files" % (which,)
+    print("using %s.img from target-files" % (which,))
     # This is a 'new' target-files, which already has the image in it.
 
   else:
-    print "building %s.img from target-files" % (which,)
+    print("building %s.img from target-files" % (which,))
 
     # This is an 'old' target-files, which does not contain images
     # already built.  Build them.
@@ -1048,8 +1050,8 @@
     else:
       include_full_boot = False
 
-      print "boot      target: %d  source: %d  diff: %d" % (
-          target_boot.size, source_boot.size, len(d))
+      print("boot      target: %d  source: %d  diff: %d" % (
+          target_boot.size, source_boot.size, len(d)))
 
       common.ZipWriteStr(output_zip, "patch/boot.img.p", d)
 
@@ -1095,19 +1097,19 @@
   if OPTIONS.two_step:
     common.ZipWriteStr(output_zip, "boot.img", target_boot.data)
     script.WriteRawImage("/boot", "boot.img")
-    print "writing full boot image (forced by two-step mode)"
+    print("writing full boot image (forced by two-step mode)")
 
   if not OPTIONS.two_step:
     if updating_boot:
       if include_full_boot:
-        print "boot image changed; including full."
+        print("boot image changed; including full.")
         script.Print("Installing boot image...")
         script.WriteRawImage("/boot", "boot.img")
       else:
         # Produce the boot image by applying a patch to the current
         # contents of the boot partition, and write it back to the
         # partition.
-        print "boot image changed; including patch."
+        print("boot image changed; including patch.")
         script.Print("Patching boot image...")
         script.ShowProgress(0.1, 10)
         script.ApplyPatch("%s:%s:%d:%s:%d:%s"
@@ -1118,7 +1120,7 @@
                           target_boot.size, target_boot.sha1,
                           source_boot.sha1, "patch/boot.img.p")
     else:
-      print "boot image unchanged; skipping."
+      print("boot image unchanged; skipping.")
 
   # Do device-specific installation (eg, write radio image).
   device_specific.IncrementalOTA_InstallEnd()
@@ -1381,7 +1383,7 @@
       care_map_data = target_zip.read(care_map_path)
       common.ZipWriteStr(output_zip, "care_map.txt", care_map_data)
     else:
-      print "Warning: cannot find care map file in target_file package"
+      print("Warning: cannot find care map file in target_file package")
     common.ZipClose(target_zip)
 
   # Sign the whole package to comply with the Android OTA package format.
@@ -1393,9 +1395,9 @@
 class FileDifference(object):
   def __init__(self, partition, source_zip, target_zip, output_zip):
     self.deferred_patch_list = None
-    print "Loading target..."
+    print("Loading target...")
     self.target_data = target_data = LoadPartitionFiles(target_zip, partition)
-    print "Loading source..."
+    print("Loading source...")
     self.source_data = source_data = LoadPartitionFiles(source_zip, partition)
 
     self.verbatim_targets = verbatim_targets = []
@@ -1422,14 +1424,14 @@
       assert fn == tf.name
       sf = ClosestFileMatch(tf, matching_file_cache, renames)
       if sf is not None and sf.name != tf.name:
-        print "File has moved from " + sf.name + " to " + tf.name
+        print("File has moved from " + sf.name + " to " + tf.name)
         renames[sf.name] = tf
 
       if sf is None or fn in OPTIONS.require_verbatim:
         # This file should be included verbatim
         if fn in OPTIONS.prohibit_verbatim:
           raise common.ExternalError("\"%s\" must be sent verbatim" % (fn,))
-        print "send", fn, "verbatim"
+        print("send", fn, "verbatim")
         tf.AddToZip(output_zip)
         verbatim_targets.append((fn, tf.size, tf.sha1))
         if fn in target_data.keys():
@@ -1517,7 +1519,7 @@
     if len(self.renames) > 0:
       script.Print("Renaming files...")
       for src, tgt in self.renames.iteritems():
-        print "Renaming " + src + " to " + tgt.name
+        print("Renaming " + src + " to " + tgt.name)
         script.RenameFile(src, tgt.name)
 
 
@@ -1719,8 +1721,8 @@
   if updating_boot:
     d = common.Difference(target_boot, source_boot)
     _, _, d = d.ComputePatch()
-    print "boot      target: %d  source: %d  diff: %d" % (
-        target_boot.size, source_boot.size, len(d))
+    print("boot      target: %d  source: %d  diff: %d" % (
+        target_boot.size, source_boot.size, len(d)))
 
     common.ZipWriteStr(output_zip, "patch/boot.img.p", d)
 
@@ -1759,7 +1761,7 @@
   if OPTIONS.two_step:
     common.ZipWriteStr(output_zip, "boot.img", target_boot.data)
     script.WriteRawImage("/boot", "boot.img")
-    print "writing full boot image (forced by two-step mode)"
+    print("writing full boot image (forced by two-step mode)")
 
   script.Print("Removing unneeded files...")
   system_diff.RemoveUnneededFiles(script, ("/system/recovery.img",))
@@ -1794,9 +1796,9 @@
                         source_boot.sha1, "patch/boot.img.p")
       so_far += target_boot.size
       script.SetProgress(so_far / total_patch_size)
-      print "boot image changed; including."
+      print("boot image changed; including.")
     else:
-      print "boot image unchanged; skipping."
+      print("boot image unchanged; skipping.")
 
   system_items = ItemSet("system", "META/filesystem_config.txt")
   if vendor_diff:
@@ -1822,9 +1824,9 @@
       script.DeleteFiles(["/system/recovery-from-boot.p",
                           "/system/etc/recovery.img",
                           "/system/etc/install-recovery.sh"])
-    print "recovery image changed; including as patch from boot."
+    print("recovery image changed; including as patch from boot.")
   else:
-    print "recovery image unchanged; skipping."
+    print("recovery image unchanged; skipping.")
 
   script.ShowProgress(0.1, 10)
 
@@ -2087,11 +2089,11 @@
       common.ZipClose(source_zip)
 
     if OPTIONS.verbose:
-      print "--- target info ---"
+      print("--- target info ---")
       common.DumpInfoDict(OPTIONS.info_dict)
 
       if OPTIONS.incremental_source is not None:
-        print "--- source info ---"
+        print("--- source info ---")
         common.DumpInfoDict(OPTIONS.source_info_dict)
 
     WriteABOTAPackageWithBrilloScript(
@@ -2099,20 +2101,20 @@
         output_file=args[1],
         source_file=OPTIONS.incremental_source)
 
-    print "done."
+    print("done.")
     return
 
   if OPTIONS.extra_script is not None:
     OPTIONS.extra_script = open(OPTIONS.extra_script).read()
 
-  print "unzipping target target-files..."
+  print("unzipping target target-files...")
   OPTIONS.input_tmp, input_zip = common.UnzipTemp(args[0])
 
   OPTIONS.target_tmp = OPTIONS.input_tmp
   OPTIONS.info_dict = common.LoadInfoDict(input_zip, OPTIONS.target_tmp)
 
   if OPTIONS.verbose:
-    print "--- target info ---"
+    print("--- target info ---")
     common.DumpInfoDict(OPTIONS.info_dict)
 
   # If the caller explicitly specified the device-specific extensions
@@ -2125,7 +2127,7 @@
   if OPTIONS.device_specific is None:
     from_input = os.path.join(OPTIONS.input_tmp, "META", "releasetools.py")
     if os.path.exists(from_input):
-      print "(using device-specific extensions from target_files)"
+      print("(using device-specific extensions from target_files)")
       OPTIONS.device_specific = from_input
     else:
       OPTIONS.device_specific = OPTIONS.info_dict.get("tool_extensions", None)
@@ -2158,7 +2160,7 @@
   # Non A/B OTAs rely on /cache partition to store temporary files.
   cache_size = OPTIONS.info_dict.get("cache_size", None)
   if cache_size is None:
-    print "--- can't determine the cache partition size ---"
+    print("--- can't determine the cache partition size ---")
   OPTIONS.cache_size = cache_size
 
   # Generate a verify package.
@@ -2172,14 +2174,14 @@
   # Generate an incremental OTA. It will fall back to generate a full OTA on
   # failure unless no_fallback_to_full is specified.
   else:
-    print "unzipping source target-files..."
+    print("unzipping source target-files...")
     OPTIONS.source_tmp, source_zip = common.UnzipTemp(
         OPTIONS.incremental_source)
     OPTIONS.target_info_dict = OPTIONS.info_dict
     OPTIONS.source_info_dict = common.LoadInfoDict(source_zip,
                                                    OPTIONS.source_tmp)
     if OPTIONS.verbose:
-      print "--- source info ---"
+      print("--- source info ---")
       common.DumpInfoDict(OPTIONS.source_info_dict)
     try:
       WriteIncrementalOTAPackage(input_zip, source_zip, output_zip)
@@ -2194,7 +2196,7 @@
     except ValueError:
       if not OPTIONS.fallback_to_full:
         raise
-      print "--- failed to build incremental; falling back to full ---"
+      print("--- failed to build incremental; falling back to full ---")
       OPTIONS.incremental_source = None
       WriteFullOTAPackage(input_zip, output_zip)
 
@@ -2205,7 +2207,7 @@
     SignOutput(temp_zip_file.name, args[1])
     temp_zip_file.close()
 
-  print "done."
+  print("done.")
 
 
 if __name__ == '__main__':
@@ -2213,9 +2215,7 @@
     common.CloseInheritedPipes()
     main(sys.argv[1:])
   except common.ExternalError as e:
-    print
-    print "   ERROR: %s" % (e,)
-    print
+    print("\n   ERROR: %s\n" % (e,))
     sys.exit(1)
   finally:
     common.Cleanup()