diff --git a/test/py/conftest.py b/test/py/conftest.py
index 30c898b40a..5c19af1d50 100644
--- a/test/py/conftest.py
+++ b/test/py/conftest.py
@@ -19,13 +19,10 @@ import os.path
 import pytest
 from _pytest.runner import runtestprotocol
 import re
-import StringIO
+import io
 import sys
 
-try:
-    import configparser
-except:
-    import ConfigParser as configparser
+import configparser
 
 # Globals: The HTML log file, and the connection to the U-Boot console.
 log = None
@@ -169,7 +166,7 @@ def pytest_configure(config):
 
         with open(dot_config, 'rt') as f:
             ini_str = '[root]\n' + f.read()
-            ini_sio = StringIO.StringIO(ini_str)
+            ini_sio = io.StringIO(ini_str)
             parser = configparser.RawConfigParser()
             parser.readfp(ini_sio)
             ubconfig.buildconfig.update(parser.items('root'))
diff --git a/test/py/multiplexed_log.py b/test/py/multiplexed_log.py
index 637a3bd257..de0aacc659 100644
--- a/test/py/multiplexed_log.py
+++ b/test/py/multiplexed_log.py
@@ -5,8 +5,8 @@
 # Generate an HTML-formatted log file containing multiple streams of data,
 # each represented in a well-delineated/-structured fashion.
 
-import cgi
 import datetime
+import html
 import os.path
 import shutil
 import subprocess
@@ -334,7 +334,7 @@ $(document).ready(function () {
         data = data.replace(chr(13), '')
         data = ''.join((ord(c) in self._nonprint) and ('%%%02x' % ord(c)) or
                        c for c in data)
-        data = cgi.escape(data)
+        data = html.escape(data)
         return data
 
     def _terminate_stream(self):
diff --git a/test/py/test.py b/test/py/test.py
index a5140945d4..0ce1838833 100755
--- a/test/py/test.py
+++ b/test/py/test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
 # SPDX-License-Identifier: GPL-2.0
 
 # Copyright (c) 2015 Stephen Warren
@@ -7,8 +7,6 @@
 # Wrapper script to invoke pytest with the directory name that contains the
 # U-Boot tests.
 
-from __future__ import print_function
-
 import os
 import os.path
 import sys
diff --git a/test/py/tests/test_fit.py b/test/py/tests/test_fit.py
index e3210ed43f..4922b9dcc6 100755
--- a/test/py/tests/test_fit.py
+++ b/test/py/tests/test_fit.py
@@ -3,8 +3,6 @@
 #
 # Sanity check of the FIT handling in U-Boot
 
-from __future__ import print_function
-
 import os
 import pytest
 import struct
diff --git a/test/py/tests/test_fpga.py b/test/py/tests/test_fpga.py
index e3bb7b41c7..ca7ef8ea40 100644
--- a/test/py/tests/test_fpga.py
+++ b/test/py/tests/test_fpga.py
@@ -175,29 +175,29 @@ def test_fpga_load_fail(u_boot_console):
     f, dev, addr, bit, bit_size = load_file_from_var(u_boot_console, 'bitstream_load')
 
     for cmd in ['dump', 'load', 'loadb']:
-	# missing dev parameter
-	expected = 'fpga: incorrect parameters passed'
-	output = u_boot_console.run_command('fpga %s %x $filesize' % (cmd, addr))
-	#assert expected in output
-	assert expected_usage in output
+        # missing dev parameter
+        expected = 'fpga: incorrect parameters passed'
+        output = u_boot_console.run_command('fpga %s %x $filesize' % (cmd, addr))
+        #assert expected in output
+        assert expected_usage in output
 
-	# more parameters - 0 at the end
-	expected = 'fpga: more parameters passed'
-	output = u_boot_console.run_command('fpga %s %x %x $filesize 0' % (cmd, dev, addr))
-	#assert expected in output
-	assert expected_usage in output
+        # more parameters - 0 at the end
+        expected = 'fpga: more parameters passed'
+        output = u_boot_console.run_command('fpga %s %x %x $filesize 0' % (cmd, dev, addr))
+        #assert expected in output
+        assert expected_usage in output
 
-	# 0 address
-	expected = 'fpga: zero fpga_data address'
-	output = u_boot_console.run_command('fpga %s %x 0 $filesize' % (cmd, dev))
-	#assert expected in output
-	assert expected_usage in output
+        # 0 address
+        expected = 'fpga: zero fpga_data address'
+        output = u_boot_console.run_command('fpga %s %x 0 $filesize' % (cmd, dev))
+        #assert expected in output
+        assert expected_usage in output
 
-	# 0 filesize
-	expected = 'fpga: zero size'
-	output = u_boot_console.run_command('fpga %s %x %x 0' % (cmd, dev, addr))
-	#assert expected in output
-	assert expected_usage in output
+        # 0 filesize
+        expected = 'fpga: zero size'
+        output = u_boot_console.run_command('fpga %s %x %x 0' % (cmd, dev, addr))
+        #assert expected in output
+        assert expected_usage in output
 
 @pytest.mark.buildconfigspec('cmd_fpga')
 @pytest.mark.buildconfigspec('cmd_echo')
diff --git a/test/py/tests/test_fs/conftest.py b/test/py/tests/test_fs/conftest.py
index 9324657d21..354d17672f 100644
--- a/test/py/tests/test_fs/conftest.py
+++ b/test/py/tests/test_fs/conftest.py
@@ -508,8 +508,8 @@ def fs_obj_unlink(request, u_boot_config):
 
         # Test Case 2
         check_call('mkdir %s/dir2' % mount_dir, shell=True)
-	for i in range(0, 20):
-	    check_call('mkdir %s/dir2/0123456789abcdef%02x'
+        for i in range(0, 20):
+            check_call('mkdir %s/dir2/0123456789abcdef%02x'
                                     % (mount_dir, i), shell=True)
 
         # Test Case 4
diff --git a/test/py/tests/test_log.py b/test/py/tests/test_log.py
index cb183444c6..75325fad61 100644
--- a/test/py/tests/test_log.py
+++ b/test/py/tests/test_log.py
@@ -27,9 +27,9 @@ def test_log(u_boot_console):
         """
         for i in range(max_level):
             if mask & 1:
-                assert 'log_run() log %d' % i == lines.next()
+                assert 'log_run() log %d' % i == next(lines)
             if mask & 3:
-                assert 'func() _log %d' % i == lines.next()
+                assert 'func() _log %d' % i == next(lines)
 
     def run_test(testnum):
         """Run a particular test number (the 'log test' command)
@@ -43,7 +43,7 @@ def test_log(u_boot_console):
            output = u_boot_console.run_command('log test %d' % testnum)
         split = output.replace('\r', '').splitlines()
         lines = iter(split)
-        assert 'test %d' % testnum == lines.next()
+        assert 'test %d' % testnum == next(lines)
         return lines
 
     def test0():
@@ -88,7 +88,7 @@ def test_log(u_boot_console):
     def test10():
         lines = run_test(10)
         for i in range(7):
-            assert 'log_test() level %d' % i == lines.next()
+            assert 'log_test() level %d' % i == next(lines)
 
     # TODO(sjg@chromium.org): Consider structuring this as separate tests
     cons = u_boot_console
diff --git a/test/py/tests/test_mmc_wr.py b/test/py/tests/test_mmc_wr.py
index ab4c579744..05e5c1ee85 100644
--- a/test/py/tests/test_mmc_wr.py
+++ b/test/py/tests/test_mmc_wr.py
@@ -67,41 +67,39 @@ def test_mmc_wr(u_boot_console, env__mmc_wr_config):
 
 
     for i in range(test_iterations):
-	# Generate random data
-	cmd = 'random %s %x' % (src_addr, count_bytes)
-	response = u_boot_console.run_command(cmd)
-	good_response = '%d bytes filled with random data' % (count_bytes)
-	assert good_response in response
+        # Generate random data
+        cmd = 'random %s %x' % (src_addr, count_bytes)
+        response = u_boot_console.run_command(cmd)
+        good_response = '%d bytes filled with random data' % (count_bytes)
+        assert good_response in response
 
-	# Select MMC device
-	cmd = 'mmc dev %d' % devid
-	if is_emmc:
-		cmd += ' %d' % partid
-	response = u_boot_console.run_command(cmd)
-	assert 'no card present' not in response
-	if is_emmc:
-		partid_response = "(part %d)" % partid
-	else:
-		partid_response = ""
-	good_response = 'mmc%d%s is current device' % (devid, partid_response)
-	assert good_response in response
+        # Select MMC device
+        cmd = 'mmc dev %d' % devid
+        if is_emmc:
+            cmd += ' %d' % partid
+        response = u_boot_console.run_command(cmd)
+        assert 'no card present' not in response
+        if is_emmc:
+            partid_response = "(part %d)" % partid
+        else:
+            partid_response = ""
+        good_response = 'mmc%d%s is current device' % (devid, partid_response)
+        assert good_response in response
 
-	# Write data
-	cmd = 'mmc write %s %x %x' % (src_addr, sector, count_sectors)
-	response = u_boot_console.run_command(cmd)
-	good_response = 'MMC write: dev # %d, block # %d, count %d ... %d blocks written: OK' % (
-		devid, sector, count_sectors, count_sectors)
-	assert good_response in response
+        # Write data
+        cmd = 'mmc write %s %x %x' % (src_addr, sector, count_sectors)
+        response = u_boot_console.run_command(cmd)
+        good_response = 'MMC write: dev # %d, block # %d, count %d ... %d blocks written: OK' % (devid, sector, count_sectors, count_sectors)
+        assert good_response in response
 
-	# Read data
-	cmd = 'mmc read %s %x %x' % (dst_addr, sector, count_sectors)
-	response = u_boot_console.run_command(cmd)
-	good_response = 'MMC read: dev # %d, block # %d, count %d ... %d blocks read: OK' % (
-		devid, sector, count_sectors, count_sectors)
-	assert good_response in response
+        # Read data
+        cmd = 'mmc read %s %x %x' % (dst_addr, sector, count_sectors)
+        response = u_boot_console.run_command(cmd)
+        good_response = 'MMC read: dev # %d, block # %d, count %d ... %d blocks read: OK' % (devid, sector, count_sectors, count_sectors)
+        assert good_response in response
 
-	# Compare src and dst data
-	cmd = 'cmp.b %s %s %x' % (src_addr, dst_addr, count_bytes)
-	response = u_boot_console.run_command(cmd)
-	good_response = 'Total of %d byte(s) were the same' % (count_bytes)
-	assert good_response in response
+        # Compare src and dst data
+        cmd = 'cmp.b %s %s %x' % (src_addr, dst_addr, count_bytes)
+        response = u_boot_console.run_command(cmd)
+        good_response = 'Total of %d byte(s) were the same' % (count_bytes)
+        assert good_response in response