diff --git a/python/src/trezorlib/cli/trezorctl.py b/python/src/trezorlib/cli/trezorctl.py
index b3a885e4c8..b94ee5af72 100755
--- a/python/src/trezorlib/cli/trezorctl.py
+++ b/python/src/trezorlib/cli/trezorctl.py
@@ -226,7 +226,6 @@ def cli_main(
         except ValueError:
             raise click.ClickException(f"Not a valid session id: {session_id}")
 
-    # ctx.obj = TrezorConnection(path, bytes_session_id, passphrase_on_host, script)
     ctx.obj = TrezorConnection(path, bytes_session_id, passphrase_on_host, script)
 
     # Optionally record the screen into a specified directory.
@@ -299,7 +298,7 @@ def list_devices(no_resolve: bool) -> Optional[Iterable["Transport"]]:
     """List connected Trezor devices."""
     if no_resolve:
         for d in enumerate_devices():
-            print(d.get_path())
+            click.echo(d.get_path())
         return
 
     from . import get_client
@@ -358,7 +357,6 @@ def get_session(
     obj.session_id = None
 
     with obj.client_context() as client:
-
         if client.features.model == "1" and client.version < (1, 9, 0):
             raise click.ClickException(
                 "Upgrade your firmware to enable session support."
diff --git a/python/src/trezorlib/debuglink.py b/python/src/trezorlib/debuglink.py
index db4531885b..3b99ac94b5 100644
--- a/python/src/trezorlib/debuglink.py
+++ b/python/src/trezorlib/debuglink.py
@@ -1,6 +1,6 @@
 # This file is part of the Trezor project.
 #
-# Copyright (C) 2012-2024 SatoshiLabs and contributors
+# Copyright (C) 2012-2022 SatoshiLabs and contributors
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License version 3
@@ -111,9 +111,7 @@ class UnstructuredJSONReader:
     def top_level_value(self, key: str) -> t.Any:
         return self.dict.get(key)
 
-    def find_objects_with_key_and_value(
-        self, key: str, value: t.Any
-    ) -> list["AnyDict"]:
+    def find_objects_with_key_and_value(self, key: str, value: t.Any) -> list[AnyDict]:
         def recursively_find(data: t.Any) -> t.Iterator[t.Any]:
             if isinstance(data, dict):
                 if data.get(key) == value:
@@ -430,7 +428,6 @@ def _make_input_func(
 
 
 class DebugLink:
-
     def __init__(self, transport: "Transport", auto_interact: bool = True) -> None:
         self.transport = transport
         self.allow_interactions = auto_interact
@@ -536,10 +533,7 @@ class DebugLink:
         self._write(msg)
         return self._read()
 
-    def state(
-        self,
-        wait_type: DebugWaitType | None = None,
-    ) -> messages.DebugLinkState:
+    def state(self, wait_type: DebugWaitType | None = None) -> messages.DebugLinkState:
         if wait_type is None:
             wait_type = (
                 DebugWaitType.CURRENT_LAYOUT
@@ -1040,7 +1034,6 @@ class MessageFilter:
 
 
 class MessageFilterGenerator:
-
     def __getattr__(self, key: str) -> t.Callable[..., "MessageFilter"]:
         message_type = getattr(messages, key)
         return MessageFilter(message_type).update_fields
@@ -1320,6 +1313,7 @@ class TrezorClientDebugLink(TrezorClient):
 
         self.reset_debug_features(new_management_session=True)
         self.sync_responses()
+
         # So that we can choose right screenshotting logic (T1 vs TT)
         # and know the supported debug capabilities
         self.debug.model = self.model
@@ -1340,7 +1334,6 @@ class TrezorClientDebugLink(TrezorClient):
         Clears all debugging state that might have been modified by a testcase.
         """
         self.ui: DebugUI = DebugUI(self.debug)
-        # self.pin_callback = self.ui.debug_callback_button
         self.in_with_statement = False
         self.expected_responses: list[MessageFilter] | None = None
         self.actual_responses: list[protobuf.MessageType] | None = None
diff --git a/python/src/trezorlib/tools.py b/python/src/trezorlib/tools.py
index 260a61aed2..f753e68a33 100644
--- a/python/src/trezorlib/tools.py
+++ b/python/src/trezorlib/tools.py
@@ -389,23 +389,6 @@ def _return_success(msg: "Success") -> str | None:
     return _deprecation_retval_helper(msg.message, stacklevel=1)
 
 
-# def session(
-#     f: "Callable[Concatenate[TrezorClient, P], R]",
-# ) -> "Callable[Concatenate[TrezorClient, P], R]":
-#     # Decorator wraps a BaseClient method
-#     # with session activation / deactivation
-#     @functools.wraps(f)
-#     def wrapped_f(client: "TrezorClient", *args: "P.args", **kwargs: "P.kwargs") -> "R":
-#         __tracebackhide__ = True  # for pytest # pylint: disable=W0612
-#         client.open()
-#         try:
-#             return f(client, *args, **kwargs)
-#         finally:
-#             client.close()
-
-#     return wrapped_f
-
-
 # de-camelcasifier
 # https://stackoverflow.com/a/1176023/222189
 
diff --git a/python/src/trezorlib/transport/__init__.py b/python/src/trezorlib/transport/__init__.py
index 45d05150c2..2c208be36d 100644
--- a/python/src/trezorlib/transport/__init__.py
+++ b/python/src/trezorlib/transport/__init__.py
@@ -1,6 +1,6 @@
 # This file is part of the Trezor project.
 #
-# Copyright (C) 2012-2024 SatoshiLabs and contributors
+# Copyright (C) 2012-2022 SatoshiLabs and contributors
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License version 3
diff --git a/python/src/trezorlib/transport/bridge.py b/python/src/trezorlib/transport/bridge.py
index 8d69e5b253..7f136608b0 100644
--- a/python/src/trezorlib/transport/bridge.py
+++ b/python/src/trezorlib/transport/bridge.py
@@ -1,6 +1,6 @@
 # This file is part of the Trezor project.
 #
-# Copyright (C) 2012-2024 SatoshiLabs and contributors
+# Copyright (C) 2012-2022 SatoshiLabs and contributors
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License version 3
diff --git a/python/src/trezorlib/transport/hid.py b/python/src/trezorlib/transport/hid.py
index 995fd6960c..65e2cddf7d 100644
--- a/python/src/trezorlib/transport/hid.py
+++ b/python/src/trezorlib/transport/hid.py
@@ -1,6 +1,6 @@
 # This file is part of the Trezor project.
 #
-# Copyright (C) 2012-2024 SatoshiLabs and contributors
+# Copyright (C) 2012-2022 SatoshiLabs and contributors
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License version 3
diff --git a/python/src/trezorlib/transport/thp/protocol_v2.py b/python/src/trezorlib/transport/thp/protocol_v2.py
index 17f463d49b..a2a930d07f 100644
--- a/python/src/trezorlib/transport/thp/protocol_v2.py
+++ b/python/src/trezorlib/transport/thp/protocol_v2.py
@@ -6,7 +6,6 @@ import logging
 import os
 import typing as t
 from binascii import hexlify
-from enum import IntEnum
 
 import click
 from cryptography.hazmat.primitives.ciphers.aead import AESGCM
@@ -468,10 +467,3 @@ class ProtocolV2(ProtocolAndChannel):
             )
             return False
         return True
-
-    class ControlByteType(IntEnum):
-        CHANNEL_ALLOCATION_RES = 1
-        HANDSHAKE_INIT_RES = 2
-        HANDSHAKE_COMP_RES = 3
-        ACK = 4
-        ENCRYPTED_TRANSPORT = 5
diff --git a/python/src/trezorlib/transport/udp.py b/python/src/trezorlib/transport/udp.py
index 2960df8994..e17d6f4500 100644
--- a/python/src/trezorlib/transport/udp.py
+++ b/python/src/trezorlib/transport/udp.py
@@ -1,6 +1,6 @@
 # This file is part of the Trezor project.
 #
-# Copyright (C) 2012-2024 SatoshiLabs and contributors
+# Copyright (C) 2012-2022 SatoshiLabs and contributors
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License version 3
diff --git a/python/src/trezorlib/transport/webusb.py b/python/src/trezorlib/transport/webusb.py
index 023ed5f245..872d961960 100644
--- a/python/src/trezorlib/transport/webusb.py
+++ b/python/src/trezorlib/transport/webusb.py
@@ -1,6 +1,6 @@
 # This file is part of the Trezor project.
 #
-# Copyright (C) 2012-2024 SatoshiLabs and contributors
+# Copyright (C) 2012-2022 SatoshiLabs and contributors
 #
 # This library is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License version 3
diff --git a/python/tools/helloworld.py b/python/tools/helloworld.py
index b8711dbb00..2403bb4bc2 100755
--- a/python/tools/helloworld.py
+++ b/python/tools/helloworld.py
@@ -24,14 +24,14 @@ from trezorlib.tools import parse_path
 def main() -> None:
     # Use first connected device
     client = get_default_client()
-    session = client.get_session(derive_cardano=True)
+    session = client.get_session()
 
     # Print out Trezor's features and settings
     print(session.features)
 
     # Get the first address of first BIP44 account
     bip32_path = parse_path("44h/0h/0h/0/0")
-    address = btc.get_address(session, "Bitcoin", bip32_path, False)
+    address = btc.get_address(session, "Bitcoin", bip32_path, True)
     print("Bitcoin address:", address)
 
 
diff --git a/tests/translations.py b/tests/translations.py
index 34f79888ba..ad5747d320 100644
--- a/tests/translations.py
+++ b/tests/translations.py
@@ -71,7 +71,7 @@ def set_language(session: Session, lang: str):
         language_data = build_and_sign_blob(lang, session)
     with session:
         device.change_language(session, language_data)  # type: ignore
-
+    _CURRENT_TRANSLATION.TR = TRANSLATIONS[lang]
 
 def get_lang_json(lang: str) -> translations.JsonDef:
     assert lang in LANGUAGES