Clean up mypy type checker errors.

1 files changed, 8 insertions, 8 deletions

diff --git a/string_utils.py b/string_utils.py
index 9f67207..991793d 100644
--- a/string_utils.py
+++ b/string_utils.py
@@ -27,7 +27,7 @@ This class is based on: https://github.com/daveoncode/python-string-utils.
 """
 
 import base64
-import contextlib
+import contextlib  # type: ignore
 import datetime
 import io
 from itertools import zip_longest
@@ -1241,7 +1241,7 @@ class SprintfStdout(object):
 
     def __init__(self) -> None:
         self.destination = io.StringIO()
-        self.recorder = None
+        self.recorder: contextlib.redirect_stdout
 
     def __enter__(self) -> Callable[[], str]:
         self.recorder = contextlib.redirect_stdout(self.destination)
@@ -1338,7 +1338,7 @@ def trigrams(txt: str):
 
 
 def shuffle_columns_into_list(
-    input_lines: Iterable[str], column_specs: Iterable[Iterable[int]], delim=''
+    input_lines: Sequence[str], column_specs: Iterable[Iterable[int]], delim=''
 ) -> Iterable[str]:
     """Helper to shuffle / parse columnar data and return the results as a
     list.  The column_specs argument is an iterable collection of
@@ -1368,7 +1368,7 @@ def shuffle_columns_into_list(
 
 
 def shuffle_columns_into_dict(
-    input_lines: Iterable[str],
+    input_lines: Sequence[str],
     column_specs: Iterable[Tuple[str, Iterable[int]]],
     delim='',
 ) -> Dict[str, str]:
@@ -1425,7 +1425,7 @@ def to_ascii(x: str):
     raise Exception('to_ascii works with strings and bytes')
 
 
-def to_base64(txt: str, *, encoding='utf-8', errors='surrogatepass') -> str:
+def to_base64(txt: str, *, encoding='utf-8', errors='surrogatepass') -> bytes:
     """Encode txt and then encode the bytes with a 64-character
     alphabet.  This is compatible with uudecode.
 
@@ -1458,7 +1458,7 @@ def is_base64(txt: str) -> bool:
     return True
 
 
-def from_base64(b64: str, encoding='utf-8', errors='surrogatepass') -> str:
+def from_base64(b64: bytes, encoding='utf-8', errors='surrogatepass') -> str:
     """Convert base64 encoded string back to normal strings.
 
     >>> from_base64(b'aGVsbG8/\\n')
@@ -1529,7 +1529,7 @@ def from_bitstring(bits: str, encoding='utf-8', errors='surrogatepass') -> str:
     return n.to_bytes((n.bit_length() + 7) // 8, 'big').decode(encoding, errors) or '\0'
 
 
-def ip_v4_sort_key(txt: str) -> Tuple[int]:
+def ip_v4_sort_key(txt: str) -> Optional[Tuple[int, ...]]:
     """Turn an IPv4 address into a tuple for sorting purposes.
 
     >>> ip_v4_sort_key('10.0.0.18')
@@ -1546,7 +1546,7 @@ def ip_v4_sort_key(txt: str) -> Tuple[int]:
     return tuple([int(x) for x in txt.split('.')])
 
 
-def path_ancestors_before_descendants_sort_key(volume: str) -> Tuple[str]:
+def path_ancestors_before_descendants_sort_key(volume: str) -> Tuple[str, ...]:
     """Chunk up a file path so that parent/ancestor paths sort before
     children/descendant paths.