diff --git a/.github/actions/lint/action.yml b/.github/actions/lint/action.yml
index 9478550c107b..1efa6aab79a5 100644
--- a/.github/actions/lint/action.yml
+++ b/.github/actions/lint/action.yml
@@ -47,3 +47,10 @@ runs:
         python -m black . --check
       working-directory: pythonFiles
       shell: bash
+
+    - name: Run Ruff
+      run: |
+        python -m pip install -U ruff
+        python -m ruff check .
+      working-directory: pythonFiles
+      shell: bash
diff --git a/pythonFiles/installed_check.py b/pythonFiles/installed_check.py
index f0e1c268d270..df5d3cb9d082 100644
--- a/pythonFiles/installed_check.py
+++ b/pythonFiles/installed_check.py
@@ -36,7 +36,7 @@ def parse_requirements(line: str) -> Optional[Requirement]:
             return req
         elif req.marker.evaluate():
             return req
-    except:
+    except Exception:
         return None
 
 
@@ -51,7 +51,7 @@ def process_requirements(req_file: pathlib.Path) -> List[Dict[str, Union[str, in
             try:
                 # Check if package is installed
                 metadata(req.name)
-            except:
+            except Exception:
                 diagnostics.append(
                     {
                         "line": n,
@@ -79,7 +79,7 @@ def process_pyproject(req_file: pathlib.Path) -> List[Dict[str, Union[str, int]]
     try:
         raw_text = req_file.read_text(encoding="utf-8")
         pyproject = tomli.loads(raw_text)
-    except:
+    except Exception:
         return diagnostics
 
     lines = raw_text.splitlines()
@@ -91,7 +91,7 @@ def process_pyproject(req_file: pathlib.Path) -> List[Dict[str, Union[str, int]]
             try:
                 # Check if package is installed
                 metadata(req.name)
-            except:
+            except Exception:
                 diagnostics.append(
                     {
                         "line": n,
diff --git a/pythonFiles/normalizeSelection.py b/pythonFiles/normalizeSelection.py
index 35bc42d6e6fe..0363702717ab 100644
--- a/pythonFiles/normalizeSelection.py
+++ b/pythonFiles/normalizeSelection.py
@@ -118,7 +118,7 @@ def normalize_lines(selection):
 
         # Insert a newline between each top-level statement, and append a newline to the selection.
         source = "\n".join(statements) + "\n"
-    except:
+    except Exception:
         # If there's a problem when parsing statements,
         # append a blank line to end the block and send it as-is.
         source = selection + "\n\n"
diff --git a/pythonFiles/pyproject.toml b/pythonFiles/pyproject.toml
index 56237999e603..d865e27418e0 100644
--- a/pythonFiles/pyproject.toml
+++ b/pythonFiles/pyproject.toml
@@ -34,3 +34,34 @@ ignore = [
     'tests/testing_tools/adapter/pytest/test_cli.py',
     'tests/testing_tools/adapter/pytest/test_discovery.py',
 ]
+
+[tool.ruff]
+line-length = 140
+ignore = ["E402"]
+exclude = [
+    # Ignore testing_tools files same as Pyright way
+    'get-pip.py',
+    'install_debugpy.py',
+    'tensorboard_launcher.py',
+    'testlauncher.py',
+    'visualstudio_py_testlauncher.py',
+    'testing_tools/unittest_discovery.py',
+    'testing_tools/adapter/util.py',
+    'testing_tools/adapter/pytest/_discovery.py',
+    'testing_tools/adapter/pytest/_pytest_item.py',
+    'tests/debug_adapter/test_install_debugpy.py',
+    'tests/testing_tools/adapter/.data',
+    'tests/testing_tools/adapter/test___main__.py',
+    'tests/testing_tools/adapter/test_discovery.py',
+    'tests/testing_tools/adapter/test_functional.py',
+    'tests/testing_tools/adapter/test_report.py',
+    'tests/testing_tools/adapter/test_util.py',
+    'tests/testing_tools/adapter/pytest/test_cli.py',
+    'tests/testing_tools/adapter/pytest/test_discovery.py',
+    'pythonFiles/testing_tools/*',
+    'pythonFiles/testing_tools/adapter/pytest/__init__.py',
+    'pythonFiles/tests/pytestadapter/expected_execution_test_output.py',
+    'pythonFiles/tests/unittestadapter/.data/discovery_error/file_one.py',
+    'pythonFiles/tests/unittestadapter/test_utils.py',
+
+]
diff --git a/pythonFiles/shell_exec.py b/pythonFiles/shell_exec.py
index c521586ca31b..4987399a53ea 100644
--- a/pythonFiles/shell_exec.py
+++ b/pythonFiles/shell_exec.py
@@ -1,9 +1,8 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
-import os
-import sys
 import subprocess
+import sys
 
 # This is a simple solution to waiting for completion of commands sent to terminal.
 # 1. Intercept commands send to a terminal
diff --git a/pythonFiles/testing_tools/adapter/pytest/__init__.py b/pythonFiles/testing_tools/adapter/pytest/__init__.py
index e894f7bcdb8e..89b7c066a459 100644
--- a/pythonFiles/testing_tools/adapter/pytest/__init__.py
+++ b/pythonFiles/testing_tools/adapter/pytest/__init__.py
@@ -3,5 +3,5 @@
 
 from __future__ import absolute_import
 
-from ._cli import add_subparser as add_cli_subparser
-from ._discovery import discover
+from ._cli import add_subparser as add_cli_subparser  # noqa: F401
+from ._discovery import discover  # noqa: F401
diff --git a/pythonFiles/tests/pytestadapter/expected_execution_test_output.py b/pythonFiles/tests/pytestadapter/expected_execution_test_output.py
index fe1d40a55b43..dd8f458d792e 100644
--- a/pythonFiles/tests/pytestadapter/expected_execution_test_output.py
+++ b/pythonFiles/tests/pytestadapter/expected_execution_test_output.py
@@ -5,7 +5,9 @@
 TEST_ADD_FUNCTION = "unittest_folder/test_add.py::TestAddFunction::"
 SUCCESS = "success"
 FAILURE = "failure"
-TEST_SUBTRACT_FUNCTION_NEGATIVE_NUMBERS_ERROR = "self = <test_subtract.TestSubtractFunction testMethod=test_subtract_negative_numbers>\n\n    def test_subtract_negative_numbers(  # test_marker--test_subtract_negative_numbers\n        self,\n    ):\n        result = subtract(-2, -3)\n>       self.assertEqual(result, 100000)\nE       AssertionError: 1 != 100000\n\nunittest_folder/test_subtract.py:25: AssertionError"
+
+TEST_SUBTRACT_FUNCTION_NEGATIVE_NUMBERS_ERROR = "self = <test_subtract.TestSubtractFunction testMethod=test_subtract_negative_numbers>\n\n    def test_subtract_negative_numbers(  # test_marker--test_subtract_negative_numbers\n        self,\n    ):\n        result = subtract(-2, -3)\n>       self.assertEqual(result, 100000)\nE       AssertionError: 1 != 100000\n\nunittest_folder/test_subtract.py:25: AssertionError"  # noqa: E501
+
 
 # This is the expected output for the unittest_folder execute tests
 # └── unittest_folder
diff --git a/pythonFiles/tests/pytestadapter/helpers.py b/pythonFiles/tests/pytestadapter/helpers.py
index c3e01d52170a..47b4f75d6d60 100644
--- a/pythonFiles/tests/pytestadapter/helpers.py
+++ b/pythonFiles/tests/pytestadapter/helpers.py
@@ -10,7 +10,7 @@
 import sys
 import threading
 import uuid
-from typing import Any, Dict, List, Optional, Tuple, Union
+from typing import Any, Dict, List, Optional, Tuple
 
 TEST_DATA_PATH = pathlib.Path(__file__).parent / ".data"
 from typing_extensions import TypedDict
diff --git a/pythonFiles/tests/pytestadapter/test_execution.py b/pythonFiles/tests/pytestadapter/test_execution.py
index ffc84955bf54..e3b00386882d 100644
--- a/pythonFiles/tests/pytestadapter/test_execution.py
+++ b/pythonFiles/tests/pytestadapter/test_execution.py
@@ -4,6 +4,7 @@
 import shutil
 
 import pytest
+
 from tests.pytestadapter import expected_execution_test_output
 
 from .helpers import TEST_DATA_PATH, runner
@@ -161,7 +162,7 @@ def test_pytest_execution(test_ids, expected_const):
     Keyword arguments:
     test_ids -- an array of test_ids to run.
     expected_const -- a dictionary of the expected output from running pytest discovery on the files.
-    """
+    """  # noqa: E501
     args = test_ids
     actual = runner(args)
     assert actual
@@ -179,6 +180,6 @@ def test_pytest_execution(test_ids, expected_const):
             or actual_result_dict[key]["outcome"] == "error"
         ):
             actual_result_dict[key]["message"] = "ERROR MESSAGE"
-        if actual_result_dict[key]["traceback"] != None:
+        if actual_result_dict[key]["traceback"] is not None:
             actual_result_dict[key]["traceback"] = "TRACEBACK"
     assert actual_result_dict == expected_const
diff --git a/pythonFiles/tests/test_create_microvenv.py b/pythonFiles/tests/test_create_microvenv.py
index f123052c491c..e5d4e68802e9 100644
--- a/pythonFiles/tests/test_create_microvenv.py
+++ b/pythonFiles/tests/test_create_microvenv.py
@@ -6,7 +6,6 @@
 import sys
 
 import create_microvenv
-import pytest
 
 
 def test_create_microvenv():
@@ -26,4 +25,4 @@ def run_process(args, error_message):
     create_microvenv.run_process = run_process
 
     create_microvenv.main()
-    assert run_process_called == True
+    assert run_process_called is True
diff --git a/pythonFiles/tests/test_create_venv.py b/pythonFiles/tests/test_create_venv.py
index bebe304c13c3..ae3f18be6f3c 100644
--- a/pythonFiles/tests/test_create_venv.py
+++ b/pythonFiles/tests/test_create_venv.py
@@ -5,9 +5,10 @@
 import os
 import sys
 
-import create_venv
 import pytest
 
+import create_venv
+
 
 @pytest.mark.skipif(
     sys.platform == "win32", reason="Windows does not have micro venv fallback."
@@ -35,7 +36,7 @@ def run_process(args, error_message):
     create_venv.main(["--name", ".test_venv"])
 
     # run_process is called when the venv does not exist
-    assert run_process_called == True
+    assert run_process_called is True
 
 
 @pytest.mark.skipif(
diff --git a/pythonFiles/tests/unittestadapter/.data/discovery_error/file_one.py b/pythonFiles/tests/unittestadapter/.data/discovery_error/file_one.py
index 42f84f046760..031b6f6c9d68 100644
--- a/pythonFiles/tests/unittestadapter/.data/discovery_error/file_one.py
+++ b/pythonFiles/tests/unittestadapter/.data/discovery_error/file_one.py
@@ -3,7 +3,7 @@
 
 import unittest
 
-import something_else  # type: ignore
+import something_else  # type: ignore # noqa: F401
 
 
 class DiscoveryErrorOne(unittest.TestCase):
diff --git a/pythonFiles/tests/unittestadapter/test_utils.py b/pythonFiles/tests/unittestadapter/test_utils.py
index a3bc1dd7693c..e262f877d52c 100644
--- a/pythonFiles/tests/unittestadapter/test_utils.py
+++ b/pythonFiles/tests/unittestadapter/test_utils.py
@@ -6,6 +6,7 @@
 import unittest
 
 import pytest
+
 from unittestadapter.utils import (
     TestNode,
     TestNodeTypeEnum,
@@ -284,7 +285,8 @@ def test_build_decorated_tree() -> None:
 
 
 def test_build_empty_tree() -> None:
-    """The build_test_tree function should return None if there are no discovered test suites, and an empty list of errors if there are none in the discovered data."""
+    """The build_test_tree function should return None if there are no discovered test suites,
+    and an empty list of errors if there are none in the discovered data."""
 
     start_dir = os.fsdecode(TEST_DATA_PATH)
     pattern = "does_not_exist*"
diff --git a/pythonFiles/unittestadapter/execution.py b/pythonFiles/unittestadapter/execution.py
index dfb6928a2074..f239f81c2d87 100644
--- a/pythonFiles/unittestadapter/execution.py
+++ b/pythonFiles/unittestadapter/execution.py
@@ -17,8 +17,9 @@
 sys.path.append(os.fspath(script_dir))
 sys.path.insert(0, os.fspath(script_dir / "lib" / "python"))
 
-from testing_tools import process_json_util, socket_manager
 from typing_extensions import NotRequired, TypeAlias, TypedDict
+
+from testing_tools import process_json_util, socket_manager
 from unittestadapter.utils import parse_unittest_args
 
 DEFAULT_PORT = "45454"
@@ -194,12 +195,12 @@ def run_tests(
         # Discover tests at path with the file name as a pattern (if any).
         loader = unittest.TestLoader()
 
-        args = {
+        args = {  # noqa: F841
             "start_dir": start_dir,
             "pattern": pattern,
             "top_level_dir": top_level_dir,
         }
-        suite = loader.discover(start_dir, pattern, top_level_dir)
+        suite = loader.discover(start_dir, pattern, top_level_dir)  # noqa: F841
 
         # Run tests.
         runner = unittest.TextTestRunner(resultclass=UnittestTestResult)
diff --git a/pythonFiles/unittestadapter/utils.py b/pythonFiles/unittestadapter/utils.py
index 78000e2a945f..64f08217f38f 100644
--- a/pythonFiles/unittestadapter/utils.py
+++ b/pythonFiles/unittestadapter/utils.py
@@ -60,11 +60,11 @@ def get_source_line(obj) -> str:
     """Get the line number of a test case start line."""
     try:
         sourcelines, lineno = inspect.getsourcelines(obj)
-    except:
+    except Exception:
         try:
             # tornado-specific, see https://github.com/microsoft/vscode-python/issues/17285.
             sourcelines, lineno = inspect.getsourcelines(obj.orig_method)
-        except:
+        except Exception:
             return "*"
 
     # Return the line number of the first line of the test case definition.
@@ -226,7 +226,8 @@ def parse_unittest_args(args: List[str]) -> Tuple[str, str, Union[str, None]]:
     The returned tuple contains the following items
     - start_directory: The directory where to start discovery, defaults to .
     - pattern: The pattern to match test files, defaults to test*.py
-    - top_level_directory: The top-level directory of the project, defaults to None, and unittest will use start_directory behind the scenes.
+    - top_level_directory: The top-level directory of the project, defaults to None,
+      and unittest will use start_directory behind the scenes.
     """
 
     arg_parser = argparse.ArgumentParser()
diff --git a/pythonFiles/vscode_datascience_helpers/tests/logParser.py b/pythonFiles/vscode_datascience_helpers/tests/logParser.py
index 767f837c5136..e021853fee7a 100644
--- a/pythonFiles/vscode_datascience_helpers/tests/logParser.py
+++ b/pythonFiles/vscode_datascience_helpers/tests/logParser.py
@@ -1,11 +1,10 @@
-from io import TextIOWrapper
-import sys
 import argparse
 import os
+from io import TextIOWrapper
 
 os.system("color")
-from pathlib import Path
 import re
+from pathlib import Path
 
 parser = argparse.ArgumentParser(description="Parse a test log into its parts")
 parser.add_argument("testlog", type=str, nargs=1, help="Log to parse")
@@ -63,14 +62,14 @@ def splitByPid(testlog):
                     pid = int(match.group(1))
 
                     # See if we've created a log for this pid or not
-                    if not pid in pids:
+                    if pid not in pids:
                         pids.add(pid)
                         logFile = "{}_{}.log".format(baseFile, pid)
                         print("Writing to new log: " + logFile)
                         logs[pid] = Path(logFile).open(mode="w")
 
                 # Add this line to the log
-                if pid != None:
+                if pid is not None:
                     logs[pid].write(line)
     # Close all of the open logs
     for key in logs: