diff --git a/scripts/symbolize.py b/scripts/symbolize.py
index 2238b08..48ba1c0 100755
--- a/scripts/symbolize.py
+++ b/scripts/symbolize.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # SPDX-License-Identifier: BSD-2-Clause
 #
 # Copyright (c) 2017, Linaro Limited
@@ -6,6 +6,7 @@
 
 
 import argparse
+import errno
 import glob
 import os
 import re
@@ -103,11 +104,12 @@
     def my_Popen(self, cmd):
         try:
             return subprocess.Popen(cmd, stdin=subprocess.PIPE,
-                                    stdout=subprocess.PIPE)
+                                    stdout=subprocess.PIPE, text=True,
+                                    bufsize=1)
         except OSError as e:
-            if e.errno == os.errno.ENOENT:
-                print >> sys.stderr, "*** Error:", cmd[0] + \
-                    ": command not found"
+            if e.errno == errno.ENOENT:
+                print("*** Error:{}: command not found".format(cmd[0]),
+                      file=sys.stderr)
                 sys.exit(1)
 
     def get_elf(self, elf_or_uuid):
@@ -133,9 +135,9 @@
                              stdout=subprocess.PIPE)
         output = p.stdout.readlines()
         p.terminate()
-        if 'ARM aarch64,' in output[0]:
+        if b'ARM aarch64,' in output[0]:
             self._arch = 'aarch64-linux-gnu-'
-        elif 'ARM,' in output[0]:
+        elif b'ARM,' in output[0]:
             self._arch = 'arm-linux-gnueabihf-'
 
     def arch_prefix(self, cmd):
@@ -205,7 +207,7 @@
         if not reladdr or not self._addr2line:
             return '???'
         try:
-            print >> self._addr2line.stdin, reladdr
+            print(reladdr, file=self._addr2line.stdin)
             ret = self._addr2line.stdout.readline().rstrip('\n')
         except IOError:
             ret = '!!!'