Fix some alerts founded the LGTM system

scripts/build/builders/mbed.py

@@ -12,12 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import logging
 import os
-import platform
-import glob
 import shlex
-import pathlib
 
 from enum import Enum, auto
 from .builder import Builder

scripts/tools/memory/memdf/df.py

@@ -32,7 +32,8 @@ def __init__(self, *args, **kwargs):
                 self[c] = pd.Series()
         types = {c: self.dtype[c] for c in self.columns if c in self.dtype}
         typed_columns = list(types.keys())
-        self[typed_columns] = self.astype(types, copy=False)[typed_columns]
+        self[typed_columns] = self.astype(types, copy=False)[
+            typed_columns]  # lgtm [py/hash-unhashable-value]
         self.attrs['name'] = self.name
 
 

scripts/tools/memory/report_summary.py

@@ -28,8 +28,6 @@
 
 import sys
 
-import numpy  # type: ignore
-
 import memdf.collect
 import memdf.report
 import memdf.select

src/controller/python/chip-repl.py

@@ -18,15 +18,7 @@
 #
 
 import IPython
-import chip
-import chip.logging
-import coloredlogs
-import logging
 from traitlets.config import Config
-from rich import print
-from rich import pretty
-from rich import inspect
-import builtins
 import argparse
 import sys
 

src/controller/python/chip/ChipDeviceCtrl.py

@@ -345,11 +345,11 @@ def DeviceAvailableCallback(device, err):
 
         # The callback might have been received synchronously (during self._ChipStack.Call()).
         # Check if the device is already set before waiting for the callback.
-        if returnDevice.value == None:
+        if returnDevice.value is None:
             with deviceAvailableCV:
                 deviceAvailableCV.wait()
 
-        if returnDevice.value == None:
+        if returnDevice.value is None:
             raise self._ChipStack.ErrorToException(CHIP_ERROR_INTERNAL)
         return returnDevice
 

src/controller/python/chip/ChipReplStartup.py

@@ -8,7 +8,6 @@
 import chip.clusters as Clusters
 import coloredlogs
 import chip.logging
-import argparse
 import builtins
 
 
@@ -41,7 +40,7 @@ def ReplInit():
 
 
 def matterhelp(classOrObj=None):
-    if (classOrObj == None):
+    if (classOrObj is None):
         inspect(builtins.devCtrl, methods=True, help=True, private=False)
     else:
         inspect(classOrObj, methods=True, help=True, private=False)

src/controller/python/chip/clusters/Attribute.py

@@ -18,8 +18,8 @@
 from asyncio.futures import Future
 import ctypes
 from dataclasses import dataclass
-from typing import Type, Union, List, Any
-from ctypes import CFUNCTYPE, c_char_p, c_size_t, c_void_p, c_uint32,  c_uint16, py_object
+from typing import Union, List, Any
+from ctypes import CFUNCTYPE, c_char_p, c_size_t, c_uint32,  c_uint16, py_object
 
 from .ClusterObjects import ClusterAttributeDescriptor
 import chip.exceptions

src/controller/python/chip/clusters/Command.py

@@ -74,7 +74,7 @@ def _handleResponse(self, path: CommandPath, status: Status, response: bytes):
             self._future.set_result(None)
         else:
             # If a type hasn't been assigned, let's auto-deduce it.
-            if (self._expect_type == None):
+            if (self._expect_type is None):
                 self._expect_type = FindCommandClusterObject(False, path)
 
             if self._expect_type:

src/controller/python/chip/interaction_model/__init__.py

@@ -26,7 +26,7 @@
 
 from chip.exceptions import ChipStackException
 
-__all__ = ["IMDelegate", "Status", "InteractionModelError"]
+__all__ = ["Status", "InteractionModelError"]
 
 
 class Status(enum.IntEnum):