Fix for isort v5.0.0

.isort.cfg

@@ -1,6 +1,5 @@
 [settings]
 skip = workbench.py
-not_skip = __init__.py
 known_third_party =
     antlr4,
     dateutil,

stix2/environment.py

@@ -1,5 +1,4 @@
 """Python STIX2 Environment API."""
-
 import copy
 import logging
 import time
@@ -463,7 +462,7 @@ def partial_location_distance(lat1, long1, lat2, long2, threshold):
         float: Number between 0.0 and 1.0 depending on match.
 
     """
-    from haversine import haversine, Unit
+    from haversine import Unit, haversine
     distance = haversine((lat1, long1), (lat2, long2), unit=Unit.KILOMETERS)
     result = 1 - (distance / threshold)
     logger.debug(

tox.ini

@@ -30,8 +30,8 @@ max-line-length = 160
 [testenv:isort-check]
 deps = isort
 commands =
-  isort -rc stix2 examples -df
+  isort stix2 examples --df
-  isort -rc stix2 examples -c
+  isort stix2 examples -c
 
 [testenv:packaging]
 deps =