Do not convert StoredDict keys to str.

Instead, convert json keys to int when storage is read.

electrum/json_db.py

@@ -78,16 +78,8 @@ class StoredDict(dict):
         for k, v in list(data.items()):
             self.__setitem__(k, v)
 
-    def convert_key(self, key):
-        """Convert int keys to str keys, as only those are allowed in json."""
-        # NOTE: this is evil. really hard to keep in mind and reason about. :(
-        #       e.g.: imagine setting int keys everywhere, and then iterating over the dict:
-        #             suddenly the keys are str...
-        return str(int(key)) if isinstance(key, int) else key
-
     @locked
     def __setitem__(self, key, v):
-        key = self.convert_key(key)
         is_new = key not in self
         # early return to prevent unnecessary disk writes
         if not is_new and self[key] == v:
@@ -119,24 +111,12 @@ class StoredDict(dict):
 
     @locked
     def __delitem__(self, key):
-        key = self.convert_key(key)
         dict.__delitem__(self, key)
         if self.db:
             self.db.set_modified(True)
 
-    @locked
-    def __getitem__(self, key):
-        key = self.convert_key(key)
-        return dict.__getitem__(self, key)
-
-    @locked
-    def __contains__(self, key):
-        key = self.convert_key(key)
-        return dict.__contains__(self, key)
-
     @locked
     def pop(self, key, v=_RaiseKeyError):
-        key = self.convert_key(key)
         if v is _RaiseKeyError:
             r = dict.pop(self, key)
         else:
@@ -145,11 +125,6 @@ class StoredDict(dict):
             self.db.set_modified(True)
         return r
 
-    @locked
-    def get(self, key, default=None):
-        key = self.convert_key(key)
-        return dict.get(self, key, default)
-
 
 
 

electrum/wallet_db.py

@@ -1357,6 +1357,14 @@ class WalletDB(JsonDB):
             v = dict((k, ShachainElement(bfh(x[0]), int(x[1]))) for k, x in v.items())
         elif key == 'data_loss_protect_remote_pcp':
             v = dict((k, bfh(x)) for k, x in v.items())
+        # convert htlc_id keys to int
+        if key in ['adds', 'locked_in', 'settles', 'fails', 'fee_updates', 'buckets']:
+            v = dict((int(k), x) for k, x in v.items())
+        # convert keys to HTLCOwner
+        if key == 'log' or (path and path[-1] in ['locked_in', 'fails', 'settles']):
+            if "1" in v:
+                v[LOCAL] = v.pop("1")
+                v[REMOTE] = v.pop("-1")
         return v
 
     def _convert_value(self, path, key, v):