dataclasses: Initial switch

See #6023

1 files changed, 8 insertions, 7 deletions

diff --git a/qutebrowser/mainwindow/tabbedbrowser.py b/qutebrowser/mainwindow/tabbedbrowser.py
index 78eb864a6..33b5708d9 100644
--- a/qutebrowser/mainwindow/tabbedbrowser.py
+++ b/qutebrowser/mainwindow/tabbedbrowser.py
@@ -26,7 +26,7 @@ import datetime
 from typing import (
     Any, Deque, List, Mapping, MutableMapping, MutableSequence, Optional, Tuple)
 
-import attr
+import dataclasses
 from PyQt5.QtWidgets import QSizePolicy, QWidget, QApplication
 from PyQt5.QtCore import pyqtSignal, pyqtSlot, QTimer, QUrl
 
@@ -39,16 +39,17 @@ from qutebrowser.utils import (log, usertypes, utils, qtutils, objreg,
 from qutebrowser.misc import quitter
 
 
-@attr.s
+@dataclasses.dataclass
 class _UndoEntry:
 
     """Information needed for :undo."""
 
-    url = attr.ib()
-    history = attr.ib()
-    index = attr.ib()
-    pinned = attr.ib()
-    created_at = attr.ib(attr.Factory(datetime.datetime.now))
+    url: QUrl
+    history: bytes  # FIXME
+    index: int
+    pinned: bool
+    created_at: datetime.datetime = dataclasses.field(
+        default_factory=datetime.datetime.now)
 
 
 class TabDeque: