A-M baby

Task/Flatten-a-list/Python/flatten-a-list-1.py

@@ -0,0 +1,7 @@
+>>> def flatten(lst):
+	return sum( ([x] if not isinstance(x, list) else flatten(x)
+		     for x in lst), [] )
+
+>>> lst = [[1], 2, [[3,4], 5], [[[]]], [[[6]]], 7, 8, []]
+>>> flatten(lst)
+[1, 2, 3, 4, 5, 6, 7, 8]

Task/Flatten-a-list/Python/flatten-a-list-2.py

@@ -0,0 +1,14 @@
+>>> def flat(lst):
+    i=0
+    while i<len(lst):
+        while True:
+            try:
+                lst[i:i+1] = lst[i]
+            except (TypeError, IndexError):
+                break
+        i += 1
+
+>>> lst = [[1], 2, [[3,4], 5], [[[]]], [[[6]]], 7, 8, []]
+>>> flat(lst)
+>>> lst
+[1, 2, 3, 4, 5, 6, 7, 8]

Task/Flatten-a-list/Python/flatten-a-list-3.py

@@ -0,0 +1,12 @@
+>>> def flatten(lst):
+     for x in lst:
+         if isinstance(x, list):
+             for x in flatten(x):
+                 yield x
+         else:
+             yield x
+
+
+>>>lst = [[1], 2, [[3,4], 5], [[[]]], [[[6]]], 7, 8, []]
+>>>print list(flatten(lst))
+[1, 2, 3, 4, 5, 6, 7, 8]