diff --git a/freqtrade/rpc/telegram.py b/freqtrade/rpc/telegram.py
index 8121c4be6..5c5a65e22 100644
--- a/freqtrade/rpc/telegram.py
+++ b/freqtrade/rpc/telegram.py
@@ -1549,7 +1549,7 @@ class Telegram(RPCHandler):
 
     async def send_blacklist_msg(self, blacklist: Dict):
         errmsgs = []
-        for pair, error in blacklist['errors'].items():
+        for _, error in blacklist['errors'].items():
             errmsgs.append(f"Error: {error['error_msg']}")
         if errmsgs:
             await self._send_msg('\n'.join(errmsgs))
diff --git a/freqtrade/strategy/informative_decorator.py b/freqtrade/strategy/informative_decorator.py
index e83d9433d..6e44a7e20 100644
--- a/freqtrade/strategy/informative_decorator.py
+++ b/freqtrade/strategy/informative_decorator.py
@@ -64,7 +64,7 @@ def informative(timeframe: str, asset: str = '',
     def decorator(fn: PopulateIndicators):
         informative_pairs = getattr(fn, '_ft_informative', [])
         informative_pairs.append(InformativeData(_asset, _timeframe, _fmt, _ffill, _candle_type))
-        setattr(fn, '_ft_informative', informative_pairs)
+        setattr(fn, '_ft_informative', informative_pairs)  # noqa: B010
         return fn
     return decorator
 
diff --git a/ft_client/freqtrade_client/ft_client.py b/ft_client/freqtrade_client/ft_client.py
index 96a7510ff..14bb47bc5 100644
--- a/ft_client/freqtrade_client/ft_client.py
+++ b/ft_client/freqtrade_client/ft_client.py
@@ -67,7 +67,7 @@ def print_commands():
     # Print dynamic help for the different commands using the commands doc-strings
     client = FtRestClient(None)
     print("Possible commands:\n")
-    for x, y in inspect.getmembers(client):
+    for x, _ in inspect.getmembers(client):
         if not x.startswith('_'):
             doc = re.sub(':return:.*', '', getattr(client, x).__doc__, flags=re.MULTILINE).rstrip()
             print(f"{x}\n\t{doc}\n")
diff --git a/scripts/ws_client.py b/scripts/ws_client.py
index cf0d0c016..818426da2 100755
--- a/scripts/ws_client.py
+++ b/scripts/ws_client.py
@@ -201,7 +201,7 @@ async def create_client(
         token,
         scheme='ws',
         name='default',
-        protocol=ClientProtocol(),
+        protocol=None,
         sleep_time=10,
         ping_timeout=10,
         wait_timeout=30,
@@ -216,6 +216,8 @@ async def create_client(
     :param name: The name of the producer
     :param **kwargs: Any extra kwargs passed to websockets.connect
     """
+    if not protocol:
+        protocol = ClientProtocol()
 
     while 1:
         try: