Make KeyInfo hashable

This way, we can store the real KeyInfo objects in BindingTrie instead of
having to use .to_int().

1 files changed, 9 insertions, 1 deletions

diff --git a/qutebrowser/keyinput/keyutils.py b/qutebrowser/keyinput/keyutils.py
index 97159706f..f4759fb74 100644
--- a/qutebrowser/keyinput/keyutils.py
+++ b/qutebrowser/keyinput/keyutils.py
@@ -347,7 +347,7 @@ def _parse_single_key(keystr):
     return 'Shift+' + keystr if keystr.isupper() else keystr
 
 
-@attr.s
+@attr.s(frozen=True, hash=False)
 class KeyInfo:
 
     """A key with optional modifiers.
@@ -364,6 +364,14 @@ class KeyInfo:
     def from_event(cls, e):
         return cls(_remap_unicode(e.key(), e.text()), e.modifiers())
 
+    def __hash__(self):
+        """Convert KeyInfo to int before hashing.
+
+        This is needed as a WORKAROUND because enum members aren't hashable
+        with PyQt 5.7.
+        """
+        return hash(self.to_int())
+
     def __str__(self):
         """Convert this KeyInfo to a meaningful name.