diff --git a/spytest/bin/lint.sh b/spytest/bin/lint.sh
index f76d4d7e8a0..0b57cda0998 100755
--- a/spytest/bin/lint.sh
+++ b/spytest/bin/lint.sh
@@ -122,20 +122,21 @@ IGNORE3="$IGNORE3 --disable=R1729" #use-a-generator
 
 IGNORE3="$IGNORE3 --disable=C3001" #unnecessary-lambda-assignment
 
-exclude="apis/gnmi/openconfig apis/gnmi unused/"
-exclude="$exclude apis/yang/autogen/bindings"
-exclude="$exclude apis/yang/codegen/bindings"
-exclude="$exclude apis/yang/codegen/test.py"
-exclude="$exclude apis/yang/codegen/gnoi_bindings"
-exclude="$exclude spytest/ddm/third-party"
-exclude="$exclude tests/dell/infra/bgpcfgd_test.py"
+EXCLUDE="$EXCLUDE apis/gnmi/openconfig"
+EXCLUDE="$EXCLUDE apis/gnmi unused/"
+EXCLUDE="$EXCLUDE apis/yang/autogen/bindings"
+EXCLUDE="$EXCLUDE apis/yang/codegen/bindings"
+EXCLUDE="$EXCLUDE apis/yang/codegen/test.py"
+EXCLUDE="$EXCLUDE apis/yang/codegen/gnoi_bindings"
+EXCLUDE="$EXCLUDE spytest/ddm/third-party"
+EXCLUDE="$EXCLUDE tests/dell/infra/bgpcfgd_test.py"
 
 if [ "$LINT_EXCLUDE_KNOWN_FAILS" == "1" ]; then
-  exclude="$exclude apis/yang/codegen"
-  exclude="$exclude tests/dell"
-  exclude="$exclude tests/ut/acl_fbs"
-  exclude="$exclude tests/infra_ut/data_driven"
-  exclude="$exclude tests/systb"
+  EXCLUDE="$EXCLUDE apis/yang/codegen"
+  EXCLUDE="$EXCLUDE tests/dell"
+  EXCLUDE="$EXCLUDE tests/ut/acl_fbs"
+  EXCLUDE="$EXCLUDE tests/infra_ut/data_driven"
+  EXCLUDE="$EXCLUDE tests/systb"
 fi
 
 LINT_PYVER=${LINT_PYVER:=3}
@@ -150,8 +151,8 @@ if [ "$LINT_MODIFIED" == "1" ]; then
   DBG_FILE=modified_lint_debug.log
   ERR_FILE=modified_lint_errors.log
   REP_FILE=modified_lint_report.log
-  #exclude=""
-  exclude="$exclude __init__.py"
+  #EXCLUDE=""
+  EXCLUDE="$EXCLUDE __init__.py"
 fi
 
 #IGNORE1="$IGNORE1 --disable=W0612" #unused-variable
@@ -173,7 +174,7 @@ RUFF_OPTS="$RUFF_OPTS --ignore E501" #line-too-long
 RUFF_OPTS="$RUFF_OPTS --ignore E701" #multiple-statements
 RUFF_OPTS="$RUFF_OPTS --ignore E702" #multiple-statements-on-one-line-semicolon
 RUFF_OPTS="$RUFF_OPTS --ignore E703" #useless-semicolon
-RUFF_OPTS="$RUFF_OPTS --ignore E713" #not-in-test
+#RUFF_OPTS="$RUFF_OPTS --ignore E713" #not-in-test
 RUFF_OPTS="$RUFF_OPTS --ignore E722" #bare-except
 RUFF_OPTS="$RUFF_OPTS --ignore E731" #lambda-assignment
 RUFF_OPTS="$RUFF_OPTS --ignore E741" #ambiguous-variable-name
@@ -186,6 +187,7 @@ RUFF_OPTS="$RUFF_OPTS --ignore W293" #Blank line contains whitespace
 RUFF_OPTS="$RUFF_OPTS --ignore PLW2901"
 RUFF_OPTS="$RUFF_OPTS --ignore PLW0603"
 RUFF_OPTS="$RUFF_OPTS --ignore PLC1901"
+RUFF_OPTS="$RUFF_OPTS --ignore PLE1300" #PLE1300 Unsupported format character '}'
 
 LINT_TOOL="${LINT_TOOL:-ruff}"
 if [ "$LINT_TOOL" = "pylint" ]; then
@@ -216,13 +218,13 @@ if [ "$LINT_TOOL" != "pyflakes" ]; then
 fi
 
 if [ $# -eq 0 ]; then
-  files1=$(find $ddir/spytest/ -name "*.py")
+  files1=$(find $ddir/spytest/ -name "*.py" | xargs)
   if [ -d $ddir/scheduler ]; then
-    files2=$(find $ddir/scheduler/ -name "*.py")
+    files2=$(find $ddir/scheduler/ -name "*.py" | xargs)
   fi
-  files3=$(find $ddir/apis/ -name "*.py")
-  files4=$(find $ddir/utilities/ -name "*.py")
-  files5=$(find $ddir/tests/ -name "*.py")
+  files3=$(find $ddir/apis/ -name "*.py" | xargs)
+  files4=$(find $ddir/utilities/ -name "*.py" | xargs)
+  files5=$(find $ddir/tests/ -name "*.py" | xargs)
   files="$files1 $files2 $files3 $files4 $files5"
 else
   files=""
@@ -230,23 +232,26 @@ else
     if [ -f $arg ]; then
       files="$files $arg"
     elif [ -d $arg ]; then
-      files="$files $(find $arg -name '*.py')"
+      files="$files $(find $arg -name '*.py' | xargs)"
     fi
   done
 fi
 
-cmd="grep -q"
-for ex in $exclude; do
-  cmd="$cmd -e $ex"
-done
-files2=""
-for f in $files;do
-  if [ -z "$exclude" ]; then
-    files2="$files2 $f"
-  elif ! $cmd <<< $f; then
-    files2="$files2 $f"
-  fi
-done
+function exclude_files() {
+python - <<END
+retval = []
+for f in "$1".split():
+    skip = False
+    for e in "$2".split():
+        if e in f:
+            skip = True
+            break
+    if not skip:
+        retval.append(f)
+print(" ".join(retval))
+END
+}
+files2=$(exclude_files "$files" "$EXCLUDE")
 
 rm -f $DBG_FILE $ERR_FILE $REP_FILE $ERR_TEMP $REP_FILE.err
 line="\--------------------------------------------------------------------"
diff --git a/spytest/bin/tools_install.sh b/spytest/bin/tools_install.sh
index 00f9586f982..84165f93597 100755
--- a/spytest/bin/tools_install.sh
+++ b/spytest/bin/tools_install.sh
@@ -17,7 +17,7 @@ dir=$(dirname $0)
 dir=$(cd $dir;pwd -P)
 scid=$(cd $dir/..;pwd -P)
 
-# sourde environment
+# source environment
 . $dir/env
 
 if [ -f $dir/.tools_env ]; then
diff --git a/spytest/bin/upgrade_requirements.sh b/spytest/bin/upgrade_requirements.sh
index 6e132a9c0f3..0819f49273e 100755
--- a/spytest/bin/upgrade_requirements.sh
+++ b/spytest/bin/upgrade_requirements.sh
@@ -129,6 +129,7 @@ if [ $is_v3 -ne 0 ]; then
   else
     $SPYTEST_PYTHON -m pip install --upgrade git+https://github.com/ramakristipatibrcm/pytest-xdist.git@spytest#egg=pytest-xdist
   fi
+  $SPYTEST_PYTHON -m pip --no-cache-dir install $INSTALL_OPTS pre-commit autopep8 flake8===6.0.0
 fi
 
 read -rs -n1 -t30 -p "Press any key or wait to continue ..."
diff --git a/spytest/spytest/gnmi/__init__.py b/spytest/spytest/gnmi/__init__.py
index dba191555a8..06527474d36 100644
--- a/spytest/spytest/gnmi/__init__.py
+++ b/spytest/spytest/gnmi/__init__.py
@@ -38,7 +38,7 @@ def configure(self, ip=None, port=8080, targetName=None, username='admin',
         return self
 
     def reinit(self, ip, port=8080):
-        self.ip = ip.decode('utf-8') if type(ip) == bytes else str(ip)
+        self.ip = ip.decode('utf-8') if isinstance(ip, bytes) else str(ip)
         self.port = int(port)
         self.target_addr = "{}:{}".format(self.ip, self.port)
         return self
diff --git a/spytest/spytest/remote/spytest-helper.py b/spytest/spytest/remote/spytest-helper.py
index 84fc43e40aa..fa833ead084 100644
--- a/spytest/spytest/remote/spytest-helper.py
+++ b/spytest/spytest/remote/spytest-helper.py
@@ -435,9 +435,9 @@ def apply_file(filepath, method):
 
 def parse_and_apply_files(names, method):
     ensure_mac_address(config_file)
-    if type(names) is str:
+    if isinstance(names, str):
         apply_file(names, method)
-    elif type(names) is list:
+    elif isinstance(names, list):
         for filename in names:
             parse_and_apply_files(filename, method)
 
diff --git a/spytest/spytest/tgen/tg.py b/spytest/spytest/tgen/tg.py
index 199b4f9eb0c..f80d919a023 100644
--- a/spytest/spytest/tgen/tg.py
+++ b/spytest/spytest/tgen/tg.py
@@ -615,7 +615,7 @@ def trgen_pre_proc(self, fname, **kwargs):
                             tgen_wait(10)
                             self.tg_topology_test_control(action='apply_on_the_fly_changes', skip_wait=True)
                             logger.info('start the host.')
-                        temp = ret_ds['handle'] if type(ret_ds['handle']) != list else ret_ds['handle'][0]
+                        temp = ret_ds['handle'] if not isinstance(ret_ds['handle'], list) else ret_ds['handle'][0]
                         self.tg_topology_test_control(handle=temp, stack='deviceGroup', action='start_protocol')
                     self.manage_interface_config_handles(kwargs.get('mode'), kwargs_port_handle, ret_ds['handle'])
                 elif kwargs.get('mode') == 'modify':
@@ -1190,7 +1190,7 @@ def tg_interface_handle(self, ret_ds):
             temp = ret_ds['handles_pylist']
         elif "handles" in ret_ds:
             temp = ret_ds['handles']
-        if type(temp) == list:
+        if isinstance(temp, list):
             temp = temp[0] if len(temp) == 1 else temp
         ret_ds['handle'] = temp
         return ret_ds
diff --git a/spytest/spytest/tgen/tgen_utils.py b/spytest/spytest/tgen/tgen_utils.py
index 1ecfda7ce55..e033eeddc71 100644
--- a/spytest/spytest/tgen/tgen_utils.py
+++ b/spytest/spytest/tgen/tgen_utils.py
@@ -460,7 +460,7 @@ def _verify_analyzer_filter_stats(tr_details, **kwargs):
             tx_ph = txObj.get_port_handle(txPort)
             i = 1
             j = str(i)
-            if type(stream) == str:
+            if isinstance(stream, str):
                 st.log('only one stream is configured, form a list')
                 stream = [stream]
                 fparam = [fparam]