X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=letter_compress.py;h=42f06dae79a8357bcffd0730194d5c2d1d352f11;hb=f2600f30801c849fc1d139386e3ddc3c9eb43e30;hp=9a6f32db43fb09762cca71f79cb268a8862e2452;hpb=791755ededfc0de84a81b4c7313830efbd27bf8c;p=python_utils.git

diff --git a/letter_compress.py b/letter_compress.py
index 9a6f32d..42f06da 100644
--- a/letter_compress.py
+++ b/letter_compress.py
@@ -1,10 +1,12 @@
 #!/usr/bin/env python3
 
+"""A simple compression helper for lowercase ascii text."""
+
 import bitstring
 
-from collect.bidict import bidict
+from collect.bidict import BiDict
 
-special_characters = bidict(
+special_characters = BiDict(
     {
         ' ': 27,
         '.': 28,
@@ -32,9 +34,9 @@ def compress(uncompressed: str) -> bytes:
 
     """
     compressed = bitstring.BitArray()
-    for (n, letter) in enumerate(uncompressed):
+    for letter in uncompressed:
         if 'a' <= letter <= 'z':
-            bits = ord(letter) - ord('a') + 1   # 1..26
+            bits = ord(letter) - ord('a') + 1  # 1..26
         else:
             if letter not in special_characters:
                 raise Exception(f'"{uncompressed}" contains uncompressable char="{letter}"')
@@ -100,4 +102,5 @@ def decompress(kompressed: bytes) -> str:
 
 if __name__ == '__main__':
     import doctest
+
     doctest.testmod()