diff --git a/src/hgvs/parser.py b/src/hgvs/parser.py
index e1ac3bdb..9e26220a 100644
--- a/src/hgvs/parser.py
+++ b/src/hgvs/parser.py
@@ -13,7 +13,6 @@
 import bioutils.sequences
 import ometa.runtime
 import parsley
-from pkg_resources import resource_filename
 
 import hgvs.edit
 
diff --git a/tests/fx-test/test_variant_length.py b/tests/fx-test/test_variant_length.py
index 00480677..54d641d1 100644
--- a/tests/fx-test/test_variant_length.py
+++ b/tests/fx-test/test_variant_length.py
@@ -4,7 +4,6 @@
 import os
 import unittest
 
-import pytest
 from support import CACHE
 
 import hgvs.dataproviders.uta
diff --git a/tests/issues/test_02xx.py b/tests/issues/test_02xx.py
index 353b4d53..b804dbb3 100644
--- a/tests/issues/test_02xx.py
+++ b/tests/issues/test_02xx.py
@@ -1,11 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-import logging
 import os
-import pprint
-import re
-import sys
 import unittest
 
 import pytest
@@ -18,13 +14,7 @@
 import hgvs.sequencevariant
 import hgvs.validator
 import hgvs.variantmapper
-from hgvs.enums import Datum
-from hgvs.exceptions import (
-    HGVSDataNotAvailableError,
-    HGVSError,
-    HGVSInvalidVariantError,
-    HGVSParseError,
-)
+from hgvs.exceptions import HGVSInvalidVariantError
 
 
 @pytest.mark.issues
diff --git a/tests/issues/test_03xx.py b/tests/issues/test_03xx.py
index 84394686..349584af 100644
--- a/tests/issues/test_03xx.py
+++ b/tests/issues/test_03xx.py
@@ -1,11 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-import logging
 import os
-import pprint
-import re
-import sys
 import unittest
 
 import pytest
@@ -24,7 +20,6 @@
     HGVSDataNotAvailableError,
     HGVSError,
     HGVSInvalidVariantError,
-    HGVSParseError,
 )
 
 
diff --git a/tests/issues/test_04xx.py b/tests/issues/test_04xx.py
index 2233c03c..221be5d3 100644
--- a/tests/issues/test_04xx.py
+++ b/tests/issues/test_04xx.py
@@ -1,11 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-import logging
 import os
-import pprint
-import re
-import sys
 import unittest
 
 import pytest
@@ -18,13 +14,7 @@
 import hgvs.sequencevariant
 import hgvs.validator
 import hgvs.variantmapper
-from hgvs.enums import Datum
-from hgvs.exceptions import (
-    HGVSDataNotAvailableError,
-    HGVSError,
-    HGVSInvalidVariantError,
-    HGVSParseError,
-)
+from hgvs.exceptions import HGVSDataNotAvailableError
 
 
 @pytest.mark.issues
diff --git a/tests/issues/test_05xx.py b/tests/issues/test_05xx.py
index d22b91c2..0679b81c 100644
--- a/tests/issues/test_05xx.py
+++ b/tests/issues/test_05xx.py
@@ -1,11 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-import logging
 import os
-import pprint
-import re
-import sys
 import unittest
 
 import pytest
@@ -18,13 +14,6 @@
 import hgvs.sequencevariant
 import hgvs.validator
 import hgvs.variantmapper
-from hgvs.enums import Datum
-from hgvs.exceptions import (
-    HGVSDataNotAvailableError,
-    HGVSError,
-    HGVSInvalidVariantError,
-    HGVSParseError,
-)
 
 
 @pytest.mark.issues
diff --git a/tests/support/crosschecker.py b/tests/support/crosschecker.py
index b043fafe..cd428eea 100644
--- a/tests/support/crosschecker.py
+++ b/tests/support/crosschecker.py
@@ -1,8 +1,6 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 
 import itertools
-import re
-import unittest
 
 from six.moves import map
 
diff --git a/tests/support/mock_input_source.py b/tests/support/mock_input_source.py
index 82580dc9..184fbb49 100644
--- a/tests/support/mock_input_source.py
+++ b/tests/support/mock_input_source.py
@@ -2,7 +2,6 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 
 import csv
-from sys import version_info
 
 # Mock test input source
 
diff --git a/tests/test_clinvar.py b/tests/test_clinvar.py
index 5e8bf124..64d6b621 100644
--- a/tests/test_clinvar.py
+++ b/tests/test_clinvar.py
@@ -2,12 +2,10 @@
 from __future__ import absolute_import, division, print_function, unicode_literals
 
 import csv
-import fileinput
 import gzip
 import io
 import os
 import sys
-import types
 import unittest
 
 import pytest
@@ -19,7 +17,6 @@
 import hgvs.parser
 import hgvs.sequencevariant
 import hgvs.variantmapper
-from hgvs.exceptions import HGVSError
 
 data_fn = os.path.join(os.path.dirname(__file__), "data", "clinvar.gz")
 
diff --git a/tests/test_hgvs_alignmentmapper.py b/tests/test_hgvs_alignmentmapper.py
index 7fd99d2b..bdff4e81 100644
--- a/tests/test_hgvs_alignmentmapper.py
+++ b/tests/test_hgvs_alignmentmapper.py
@@ -12,12 +12,7 @@
 import hgvs.location
 import hgvs.parser
 from hgvs.alignmentmapper import AlignmentMapper
-from hgvs.enums import Datum
-from hgvs.exceptions import (
-    HGVSDataNotAvailableError,
-    HGVSError,
-    HGVSInvalidIntervalError,
-)
+from hgvs.exceptions import HGVSDataNotAvailableError, HGVSInvalidIntervalError
 
 
 @pytest.mark.quick
diff --git a/tests/test_hgvs_variantmapper_gcp.py b/tests/test_hgvs_variantmapper_gcp.py
index 22d4d81b..368d8f42 100644
--- a/tests/test_hgvs_variantmapper_gcp.py
+++ b/tests/test_hgvs_variantmapper_gcp.py
@@ -1,9 +1,7 @@
 # -*- coding: utf-8 -*-
 from __future__ import absolute_import, division, print_function, unicode_literals
 
-import logging
 import os
-import pprint
 import re
 import sys
 import unittest
@@ -20,7 +18,6 @@
 import hgvs.parser
 import hgvs.sequencevariant
 import hgvs.variantmapper
-from hgvs.exceptions import HGVSError
 
 
 def gxp_file_reader(fn):
diff --git a/tests/test_hgvs_variantmapper_near_discrepancies.py b/tests/test_hgvs_variantmapper_near_discrepancies.py
index 59e4f7ce..84bed3d8 100644
--- a/tests/test_hgvs_variantmapper_near_discrepancies.py
+++ b/tests/test_hgvs_variantmapper_near_discrepancies.py
@@ -9,7 +9,6 @@
 import hgvs.assemblymapper
 import hgvs.dataproviders.uta
 import hgvs.parser
-from hgvs.exceptions import HGVSError, HGVSInvalidVariantError
 
 tests_fn = "tests/data/proj-near-disc.tsv"