added verbose option

Author: kgashok

pygorithm/sorting/merge_sort.py

@@ -49,7 +49,7 @@ def sort(_list):
         return merge(a, b)
 
 from itertools import zip_longest
-def sorti(_list):
+def sorti(_list, verbose=True):
     """
     Function to sort an array
     using merge sort algorithm, iteratively
@@ -60,7 +60,7 @@ def sorti(_list):
     # breakdown every element into its own list
     series = [[i] for i in _list]
     while len(series) > 1:
-        print(series)
+        if verbose: print(series)
         # iterator to handle two at a time in the zip_longest below
         isl = iter(series)
         series = [

tests/test_sorting.py

@@ -122,7 +122,7 @@ class TestMergeSortIterative(unittest.TestCase, TestSortingAlgorithm):
 
     @staticmethod
     def sort(arr):
-        return merge_sort.sorti(arr)
+        return merge_sort.sorti(arr, verbose=False)
 
 class TestQuickSort(unittest.TestCase, TestSortingAlgorithm):
     inplace = False