Python: matrix is added

python/matrix/matrix.py

@@ -0,0 +1,16 @@
+class Matrix:
+    def __init__(self, matrix_string):
+        self.rows = [[int(s) for s in row_string.split()]
+                     for row_string in matrix_string.split('\n')]
+
+    def row(self, index):
+        if index < 1:
+            raise ValueError("Row index must be no less than 1")
+
+        return self.rows[index - 1]
+
+    def column(self, index):
+        if index < 1:
+            raise ValueError("Row index must be no less than 1")
+
+        return [row[index - 1] for row in self.rows]