diff --git a/.github/workflows/unittests.yml b/.github/workflows/unittests.yml
index 95ca98a..1f3fd99 100644
--- a/.github/workflows/unittests.yml
+++ b/.github/workflows/unittests.yml
@@ -43,7 +43,6 @@ jobs:
 
     - name: Test with pytest
       run: |
-        # note that some tests are skipped because Gurobi is not available on Github
         coverage run --source=. -m pytest -v --tb=long -m unittests.py
 
     - name: Generate coverage report
diff --git a/examples/alldifferent.py b/examples/alldifferent.py
index 0b5747d..9995f49 100644
--- a/examples/alldifferent.py
+++ b/examples/alldifferent.py
@@ -10,18 +10,11 @@ parties = 5
 seats = 20
 methods = ["quota", "largest_remainder", "dhondt", "saintelague", "adams"]
 
-
-iterator = combinations(range(1, maxvoters + 1), parties)
-
-for iterations, votes in enumerate(iterator):
+for iterations, votes in enumerate(combinations(range(1, maxvoters + 1), parties)):
     apportionments = set()
 
     for method in methods:
-        apportionments.add(
-                tuple(
-                    app.compute(method, votes, seats, verbose=False)
-                )
-            )
+        apportionments.add(tuple(app.compute(method, votes, seats, verbose=False)))
 
     if len(apportionments) == len(methods):
         break
@@ -33,6 +26,4 @@ print("votes = {}".format(votes))
 print("found in {} iterations\n\n".format(iterations))
 
 for method in methods:
-    print(
-        "{:>20s}: {}".format(method, app.compute(method, votes, seats, verbose=False))
-    )
+    print("{:>20s}: {}".format(method, app.compute(method, votes, seats, verbose=False)))
diff --git a/setup.py b/setup.py
index bea24cd..ff1620c 100644
--- a/setup.py
+++ b/setup.py
@@ -100,4 +100,3 @@ setuptools.setup(
         ]
     },
 )
-