X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=list_utils.py;h=91af8f9eb924fb7e7e04932d58a1bcb6eded0690;hb=e8fbbb7306430478dec55d2c963eed116d8330cc;hp=d70159a1b2dadb61640eae20f029608cabd2f46e;hpb=0d63d44ac89aab38fe95f36497adaf95110ab949;p=python_utils.git

diff --git a/list_utils.py b/list_utils.py
index d70159a..91af8f9 100644
--- a/list_utils.py
+++ b/list_utils.py
@@ -1,8 +1,10 @@
 #!/usr/bin/env python3
 
+"""Some useful(?) utilities for dealing with Lists."""
+
 from collections import Counter
 from itertools import islice
-from typing import Any, Iterator, List, Mapping, Sequence, Tuple
+from typing import Any, Iterator, List, Sequence, Tuple
 
 
 def shard(lst: List[Any], size: int) -> Iterator[Any]:
@@ -230,9 +232,7 @@ def _permute(seq: str, path: str):
         yield from _permute(cdr, path + car)
 
 
-def binary_search(
-    lst: Sequence[Any], target: Any, *, sanity_check=False
-) -> Tuple[bool, int]:
+def binary_search(lst: Sequence[Any], target: Any, *, sanity_check=False) -> Tuple[bool, int]:
     """Performs a binary search on lst (which must already be sorted).
     Returns a Tuple composed of a bool which indicates whether the
     target was found and an int which indicates the index closest to
@@ -267,9 +267,7 @@ def binary_search(
     return _binary_search(lst, target, 0, len(lst) - 1)
 
 
-def _binary_search(
-    lst: Sequence[Any], target: Any, low: int, high: int
-) -> Tuple[bool, int]:
+def _binary_search(lst: Sequence[Any], target: Any, low: int, high: int) -> Tuple[bool, int]:
     if high >= low:
         mid = (high + low) // 2
         if lst[mid] == target: