Python Task 1 LK

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diff --git a/challenge-073/lubos-kolouch/python/ch-1.py b/challenge-073/lubos-kolouch/python/ch-1.py
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+++ b/challenge-073/lubos-kolouch/python/ch-1.py
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+#! /usr/bin/env python
+""" Perl weekly challenge 073
+    https://perlweeklychallenge.org/blog/perl-weekly-challenge-073/ Task 1 """
+
+
+def min_window(arr, s):
+    """ Return the min sliding window"""
+
+    return_array = list()
+
+    pos = 0
+
+    while 1:
+        last_index = min(len(arr)-1, pos + s)
+
+        app_min = min(arr[pos:last_index])
+        return_array.append(app_min)
+
+        if last_index == len(arr)-1:
+            break
+
+        pos += 1
+
+    return return_array
+
+
+assert min_window([1, 5, 0, 2, 9, 3, 7, 6, 4, 8], 3) == [0, 0, 0, 2, 3, 3, 4]