add bubble sort sorting algorithm

Author: Muh. Angga Muttaqien

sorting/bubble-sort.py

@@ -0,0 +1,19 @@
+
+def bubble_sort(collection):
+
+    length = len(collection)
+    for i in range(length-1, -1, -1):
+        for j in range(i):
+            if collection[j] > collection[j+1]:
+                collection[j], collection[j+1] = collection[j+1], collection[j]
+
+    return collection
+
+def main():
+    print("=== Bubble Sort (Algorithm) - A simple algorithm that repeatedly steps through the list to be sorted. The algorithm is named for the way smaller or larger elements 'bubble' to the top of the list")
+    numbers = raw_input("Enter numbers separated by a comma: ")
+    unsorted = [int(item) for item in numbers.split(',')]
+    print(bubble_sort(unsorted))
+
+if __name__=='__main__':
+	main()