Moving code around to help my understanding. file names most probably wrong right now but will update when understand it better

encoder.py

@@ -0,0 +1,42 @@
+"""
+Hamming and Manchester Encoding example
+
+Author: Joel Addison
+Date: March 2013
+
+Functions to do (7,4) hamming encoding and decoding, including error detection
+and correction.
+Manchester encoding and decoding is also included, and by default will use
+least bit ordering for the byte that is to be included in the array.
+"""
+
+def extract_bit(byte, pos):
+    """
+    Extract a bit from a given byte using MS ordering.
+    ie. B7 B6 B5 B4 B3 B2 B1 B0
+    """
+    return (byte >> pos) & 0x01
+
+def manchester_encode(byte):
+    """
+    Encode a byte using Manchester encoding. Returns an array of bits.
+    Adds two start bits (1, 1) and one stop bit (0) to the array.
+    """
+    # Add start bits (encoded 1, 1)
+    # manchester_encoded = [0, 1, 0, 1]
+    manchester_encoded = []
+
+    # Encode byte
+    for i in range(7, -1, -1):
+        if extract_bit(byte, i):
+            manchester_encoded.append(0)
+            manchester_encoded.append(1)
+        else:
+            manchester_encoded.append(1)
+            manchester_encoded.append(0)
+
+    # Add stop bit (encoded 0)
+    # manchester_encoded.append(1)
+    # manchester_encoded.append(0)
+
+    return manchester_encoded