diff --git a/cloudinit/sources/helpers/azure.py b/cloudinit/sources/helpers/azure.py
index 689ed4c..4318638 100644
--- a/cloudinit/sources/helpers/azure.py
+++ b/cloudinit/sources/helpers/azure.py
@@ -232,7 +232,7 @@ class WALinuxAgentShim(object):
def _get_value_from_leases_file(fallback_lease_file):
leases = []
content = util.load_file(fallback_lease_file)
- LOG.debug("content is {}".format(content))
+ LOG.debug("content is: %s", content)
for line in content.splitlines():
if 'unknown-245' in line:
# Example line from Ubuntu
diff --git a/cloudinit/util.py b/cloudinit/util.py
index eb3e589..6b388c9 100644
--- a/cloudinit/util.py
+++ b/cloudinit/util.py
@@ -1821,7 +1821,7 @@ def subp(args, data=None, rcs=None, env=None, capture=True, shell=False,
def ldecode(data, m='utf-8'):
if not isinstance(data, bytes):
return data
- return data.decode(m, errors=decode)
+ return data.decode(m, decode)
out = ldecode(out)
err = ldecode(err)
diff --git a/tests/unittests/test_handler/test_handler_apt_conf_v1.py b/tests/unittests/test_handler/test_handler_apt_conf_v1.py
index 45714ef..e00610a 100644
--- a/tests/unittests/test_handler/test_handler_apt_conf_v1.py
+++ b/tests/unittests/test_handler/test_handler_apt_conf_v1.py
@@ -118,7 +118,7 @@ class TestConversion(TestCase):
def test_convert_with_apt_mirror(self):
mirror = 'http://my.mirror/ubuntu'
f = cc_apt_configure.convert_to_v3_apt_format({'apt_mirror': mirror})
- self.assertIn(mirror, {m['uri'] for m in f['apt']['primary']})
+ self.assertIn(mirror, set([m['uri'] for m in f['apt']['primary']]))
def test_no_old_content(self):
mirror = 'http://my.mirror/ubuntu'
diff --git a/tests/unittests/test_util.py b/tests/unittests/test_util.py
index fc6b9d4..881509a 100644
--- a/tests/unittests/test_util.py
+++ b/tests/unittests/test_util.py
@@ -553,7 +553,7 @@ class TestSubp(helpers.TestCase):
def test_subp_decode_invalid_utf8_replaces(self):
(out, _err) = util.subp(self.stdin2out, capture=True,
data=self.utf8_invalid)
- expected = self.utf8_invalid.decode('utf-8', errors='replace')
+ expected = self.utf8_invalid.decode('utf-8', 'replace')
self.assertEqual(out, expected)
def test_subp_decode_strict_raises(self):