September Morn Update

Task/Matrix-transposition/Python/matrix-transposition-2.py

@@ -0,0 +1,41 @@
+# transpose :: Matrix a -> Matrix a
+def transpose(m):
+    if m:
+        inner = type(m[0])
+        z = zip(*m)
+        return (type(m))(
+            map(inner, z) if tuple != inner else z
+        )
+    else:
+        return m
+
+
+if __name__ == '__main__':
+
+    # TRANSPOSING FOUR BASIC TYPES OF PYTHON MATRIX
+    # Cartesian product of (Outer, Inner) with (List, Tuple)
+
+    # Matrix any = Tuple of Tuples of any type
+    tts = ((1, 2, 3), (4, 5, 6), (7, 8, 9))
+
+    # Matrix any = Tuple of Lists of any  type
+    tls = ([1, 2, 3], [4, 5, 6], [7, 8, 9])
+
+    emptyTuple = ()
+
+    # Matrix any = List of Lists of any type
+    lls = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
+
+    # Matrix any = List of Tuples of any type
+    lts = [(1, 2, 3), (4, 5, 6), (7, 8, 9)]
+
+    emptyList = []
+
+    print('transpose function :: (Transposition without type change):\n')
+    for m in [emptyTuple, tts, tls, emptyList, lls, lts]:
+        tm = transpose(m)
+        print (
+            type(tm).__name__ + (
+                (' of ' + type(tm[0]).__name__) if m else ''
+            ) + ' :: ' + str(m) + ' -> ' + str(tm)
+        )