Initial data commit

Task/Gray-code/Python/gray-code-3.py

@@ -0,0 +1,7 @@
+>>> def bin2gray(bits):
+	return bits[:1] + [i ^ ishift for i, ishift in zip(bits[:-1], bits[1:])]
+
+>>> def gray2bin(bits):
+	b = [bits[0]]
+	for nextb in bits[1:]: b.append(b[-1] ^ nextb)
+	return b