diff --git a/electrum/coinchooser.py b/electrum/coinchooser.py
index 67137b693..e59e3e6d7 100644
--- a/electrum/coinchooser.py
+++ b/electrum/coinchooser.py
@@ -410,7 +410,11 @@ class CoinChooserRandom(CoinChooserBase):
 
         for bkts_choose_from in bucket_sets:
             try:
-                def sfunds(bkts, *, bucket_value_sum):
+                def sfunds(
+                    bkts, *, bucket_value_sum,
+                    already_selected_buckets_value_sum=already_selected_buckets_value_sum,
+                    already_selected_buckets=already_selected_buckets,
+                ):
                     bucket_value_sum += already_selected_buckets_value_sum
                     return sufficient_funds(already_selected_buckets + bkts,
                                             bucket_value_sum=bucket_value_sum)
diff --git a/electrum/daemon.py b/electrum/daemon.py
index 2a10b106a..674e143bc 100644
--- a/electrum/daemon.py
+++ b/electrum/daemon.py
@@ -110,6 +110,7 @@ def request(config: SimpleConfig, endpoint, args=(), timeout=60):
     lockfile = get_lockfile(config)
     while True:
         create_time = None
+        path = None
         try:
             with open(lockfile) as f:
                 socktype, address, create_time = ast.literal_eval(f.read())
@@ -127,7 +128,9 @@ def request(config: SimpleConfig, endpoint, args=(), timeout=60):
         server_url = 'http://%s:%d' % (host, port)
         auth = aiohttp.BasicAuth(login=rpc_user, password=rpc_password)
         loop = util.get_asyncio_loop()
-        async def request_coroutine():
+        async def request_coroutine(
+            *, socktype=socktype, path=path, auth=auth, server_url=server_url, endpoint=endpoint,
+        ):
             if socktype == 'unix':
                 connector = aiohttp.UnixConnector(path=path)
             elif socktype == 'tcp':
diff --git a/electrum/plugins/keepkey/qt.py b/electrum/plugins/keepkey/qt.py
index 00c893e91..7ea74b372 100644
--- a/electrum/plugins/keepkey/qt.py
+++ b/electrum/plugins/keepkey/qt.py
@@ -201,7 +201,7 @@ class QtPlugin(QtPluginBase):
             return
         for keystore in wallet.get_keystores():
             if type(keystore) == self.keystore_class:
-                def show_address():
+                def show_address(keystore=keystore):
                     keystore.thread.add(partial(self.show_address, wallet, addrs[0], keystore))
                 device_name = "{} ({})".format(self.device, keystore.label)
                 menu.addAction(_("Show on {}").format(device_name), show_address)
diff --git a/electrum/plugins/ledger/ledger.py b/electrum/plugins/ledger/ledger.py
index 1b1ba4232..0e4245f74 100644
--- a/electrum/plugins/ledger/ledger.py
+++ b/electrum/plugins/ledger/ledger.py
@@ -1171,7 +1171,7 @@ class Ledger_Client_New(Ledger_Client):
                             registered_hmac,
                         )
                 else:
-                    def process_origin(origin: KeyOriginInfo) -> None:
+                    def process_origin(origin: KeyOriginInfo, *, script_addrtype=script_addrtype) -> None:
                         if is_standard_path(origin.path, script_addrtype, get_chain()):
                             # these policies do not need to be registered
                             policy = self.get_singlesig_default_wallet_policy(script_addrtype, origin.path[2])