diff --git a/common/lib/capa/capa/tests/test_html_render.py b/common/lib/capa/capa/tests/test_html_render.py
index 4bfe49ccae..47638cc19f 100644
--- a/common/lib/capa/capa/tests/test_html_render.py
+++ b/common/lib/capa/capa/tests/test_html_render.py
@@ -10,9 +10,6 @@ import unittest
 import ddt
 import mock
 from lxml import etree
-
-# Changes formatting of empty elements; import here to avoid test order dependence
-import xmodule.modulestore.xml  # pylint: disable=unused-import
 from capa.tests.helpers import new_loncapa_problem, test_capa_system
 from openedx.core.djangolib.markup import HTML
 
diff --git a/common/lib/capa/capa/tests/test_targeted_feedback.py b/common/lib/capa/capa/tests/test_targeted_feedback.py
index 628279df9a..9161fc18cd 100644
--- a/common/lib/capa/capa/tests/test_targeted_feedback.py
+++ b/common/lib/capa/capa/tests/test_targeted_feedback.py
@@ -6,9 +6,6 @@ i.e. those with the <multiplechoiceresponse> element
 
 import textwrap
 import unittest
-
-# Changes formatting of empty elements; import here to avoid test order dependence
-import xmodule.modulestore.xml  # pylint: disable=unused-import
 from capa.tests.helpers import load_fixture, new_loncapa_problem, test_capa_system
 
 
diff --git a/common/lib/conftest.py b/common/lib/conftest.py
index 03bd8596e5..daab9ba264 100644
--- a/common/lib/conftest.py
+++ b/common/lib/conftest.py
@@ -7,8 +7,6 @@ import pytest
 
 from safe_lxml import defuse_xml_libs
 
-from openedx.core.pytest_hooks import pytest_configure  # pylint: disable=unused-import
-
 defuse_xml_libs()
 
 
diff --git a/common/lib/symmath/symmath/formula.py b/common/lib/symmath/symmath/formula.py
index d72389b72c..1169113251 100644
--- a/common/lib/symmath/symmath/formula.py
+++ b/common/lib/symmath/symmath/formula.py
@@ -21,7 +21,6 @@ import unicodedata
 #import subprocess
 from copy import deepcopy
 from functools import reduce
-from xml.sax.saxutils import unescape  # lint-amnesty, pylint: disable=unused-import
 
 import six
 import sympy