fix type annotation for _MemoryFile.readinto

nwh · nwh · commit 59351607c21d · 2020-10-16T09:37:58.000-07:00
diff --git a/fs/memoryfs.py b/fs/memoryfs.py
@@ -146,7 +146,7 @@ def readable(self):
         return self._mode.reading
 
     def readinto(self, b):
-        # type (bytes) -> Optional[int]
+        # type (bytearray) -> Optional[int]
         if not self._mode.reading:
             raise IOError("File not open for reading")
         with self._seek_lock():
