8 files changed, 22 insertions, 22 deletions
diff --git a/algorithms/impl/__init__.py b/algorithms/impl/__init__.py
index f2d5aaf..ebc1ab2 100644
--- a/algorithms/impl/__init__.py
+++ b/algorithms/impl/__init__.py
@@ -9,7 +9,7 @@ from pkgutil import iter_modules
 
 from .. import algorithm
 
-_ALGORITHMS_NAME = '_ALGORITHMS'
+_ALGORITHMS_NAME = "_ALGORITHMS"
 
 
 def refresh_algorithms():
@@ -18,7 +18,7 @@ def refresh_algorithms():
     for _, module_name, is_pkg in iter_modules([os.path.dirname(__file__)]):
         if is_pkg:
             continue
-        module = import_module('.' + module_name, __package__)
+        module = import_module("." + module_name, __package__)
         if hasattr(module, _ALGORITHMS_NAME):
             module_algorithms = getattr(module, _ALGORITHMS_NAME)
             for descr in module_algorithms:
diff --git a/algorithms/impl/bubble_sort.py b/algorithms/impl/bubble_sort.py
index 14f5386..ac9621f 100644
--- a/algorithms/impl/bubble_sort.py
+++ b/algorithms/impl/bubble_sort.py
@@ -35,9 +35,9 @@ def bubble_sort_optimized(xs):
 
 
 _ALGORITHMS = [
-    SortingAlgorithm('bubble_sort', 'Bubble sort', bubble_sort),
+    SortingAlgorithm("bubble_sort", "Bubble sort", bubble_sort),
     SortingAlgorithm(
-        'bubble_sort_optimized', 'Bubble sort (optimized)', bubble_sort_optimized
+        "bubble_sort_optimized", "Bubble sort (optimized)", bubble_sort_optimized
     ),
 ]
 
@@ -54,5 +54,5 @@ def main(args=None):
     print(bubble_sort_optimized(list(xs)))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/algorithms/impl/heapsort.py b/algorithms/impl/heapsort.py
index 81bea20..4299c91 100644
--- a/algorithms/impl/heapsort.py
+++ b/algorithms/impl/heapsort.py
@@ -63,7 +63,7 @@ def _siftdown(xs, start, end):
 
 
 _ALGORITHMS = [
-    SortingAlgorithm('heapsort', 'Heapsort', heapsort),
+    SortingAlgorithm("heapsort", "Heapsort", heapsort),
 ]
 
 
@@ -78,5 +78,5 @@ def main(args=None):
     print(heapsort(list(xs)))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/algorithms/impl/insertion_sort.py b/algorithms/impl/insertion_sort.py
index 13f16a0..f87e62e 100644
--- a/algorithms/impl/insertion_sort.py
+++ b/algorithms/impl/insertion_sort.py
@@ -18,7 +18,7 @@ def insertion_sort(xs):
 
 
 _ALGORITHMS = [
-    SortingAlgorithm('insertion_sort', 'Insertion sort', insertion_sort),
+    SortingAlgorithm("insertion_sort", "Insertion sort", insertion_sort),
 ]
 
 
@@ -33,5 +33,5 @@ def main(args=None):
     print(insertion_sort(list(xs)))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/algorithms/impl/median.py b/algorithms/impl/median.py
index 7b75219..2fcc4a1 100644
--- a/algorithms/impl/median.py
+++ b/algorithms/impl/median.py
@@ -47,9 +47,9 @@ def calc_median_sorting(xs):
 
 _ALGORITHMS = [
     Algorithm(
-        'median_sorting', 'Median value (using explicit sorting)', calc_median_sorting
+        "median_sorting", "Median value (using explicit sorting)", calc_median_sorting
     ),
-    Algorithm('median_heaps', 'Median value (using heaps)', calc_median_heaps),
+    Algorithm("median_heaps", "Median value (using heaps)", calc_median_heaps),
 ]
 
 
@@ -65,5 +65,5 @@ def main(args=None):
     print(calc_median_heaps(list(xs)))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/algorithms/impl/merge_sort.py b/algorithms/impl/merge_sort.py
index fecdf78..363cc85 100644
--- a/algorithms/impl/merge_sort.py
+++ b/algorithms/impl/merge_sort.py
@@ -33,7 +33,7 @@ def merge_sort(xs):
 
 
 _ALGORITHMS = [
-    SortingAlgorithm('merge_sort', 'Merge sort', merge_sort),
+    SortingAlgorithm("merge_sort", "Merge sort", merge_sort),
 ]
 
 
@@ -48,5 +48,5 @@ def main(args=None):
     print(merge_sort(list(xs)))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/algorithms/impl/quicksort.py b/algorithms/impl/quicksort.py
index 9274c21..6f8e823 100644
--- a/algorithms/impl/quicksort.py
+++ b/algorithms/impl/quicksort.py
@@ -76,19 +76,19 @@ def quicksort_random(xs):
 
 _ALGORITHMS = [
     SortingAlgorithm(
-        'quicksort_first', 'Quicksort (first element as pivot)', quicksort_first
+        "quicksort_first", "Quicksort (first element as pivot)", quicksort_first
     ),
     SortingAlgorithm(
-        'quicksort_second', 'Quicksort (second element as pivot)', quicksort_second
+        "quicksort_second", "Quicksort (second element as pivot)", quicksort_second
     ),
     SortingAlgorithm(
-        'quicksort_middle', 'Quicksort (middle element as pivot)', quicksort_middle
+        "quicksort_middle", "Quicksort (middle element as pivot)", quicksort_middle
     ),
     SortingAlgorithm(
-        'quicksort_last', 'Quicksort (last element as pivot)', quicksort_last
+        "quicksort_last", "Quicksort (last element as pivot)", quicksort_last
     ),
     SortingAlgorithm(
-        'quicksort_random', 'Quicksort (random element as pivot)', quicksort_random
+        "quicksort_random", "Quicksort (random element as pivot)", quicksort_random
     ),
 ]
 
@@ -108,5 +108,5 @@ def main(args=None):
     print(quicksort_random(list(xs)))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()
diff --git a/algorithms/impl/selection_sort.py b/algorithms/impl/selection_sort.py
index e9a5a09..9591169 100644
--- a/algorithms/impl/selection_sort.py
+++ b/algorithms/impl/selection_sort.py
@@ -20,7 +20,7 @@ def selection_sort(xs):
 
 
 _ALGORITHMS = [
-    SortingAlgorithm('selection_sort', 'Selection sort', selection_sort),
+    SortingAlgorithm("selection_sort", "Selection sort", selection_sort),
 ]
 
 
@@ -35,5 +35,5 @@ def main(args=None):
     print(selection_sort(list(xs)))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()