summaryrefslogtreecommitdiff
path: root/sphinx/util/osutil.py
diff options
context:
space:
mode:
Diffstat (limited to 'sphinx/util/osutil.py')
-rw-r--r--sphinx/util/osutil.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/sphinx/util/osutil.py b/sphinx/util/osutil.py
index af41df48b..248abd0e7 100644
--- a/sphinx/util/osutil.py
+++ b/sphinx/util/osutil.py
@@ -18,7 +18,7 @@ import sys
import warnings
from io import StringIO
from os import path
-from typing import Any, Generator, Iterator, List, Tuple
+from typing import Any, Generator, Iterator, List, Optional, Tuple
from sphinx.deprecation import RemovedInSphinx40Warning
@@ -206,7 +206,7 @@ class FileAvoidWrite:
"""
def __init__(self, path: str) -> None:
self._path = path
- self._io = None # type: StringIO
+ self._io = None # type: Optional[StringIO]
def write(self, data: str) -> None:
if not self._io: