diff --git a/appengine/standard_python3/cloud_debugger/app.yaml b/appengine/standard_python3/cloud_debugger/app.yaml
deleted file mode 100644
index 0ac1ae69ea41..000000000000
--- a/appengine/standard_python3/cloud_debugger/app.yaml
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2021 Google Inc. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-runtime: python38
diff --git a/appengine/standard_python3/cloud_debugger/main.py b/appengine/standard_python3/cloud_debugger/main.py
deleted file mode 100644
index a17b617a19a5..000000000000
--- a/appengine/standard_python3/cloud_debugger/main.py
+++ /dev/null
@@ -1,92 +0,0 @@
-# Copyright 2019 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# [START gae_python38_app]
-# [START gae_python3_app]
-import logging
-
-from flask import Flask, render_template, request
-
-# Enable cloud debugger
-try:
- import googleclouddebugger
-
- googleclouddebugger.enable()
-except ImportError:
- pass
-
-# Adjust logging level to INFO
-logging.basicConfig(level=logging.INFO)
-
-# If `entrypoint` is not defined in app.yaml, App Engine will look for an app
-# called `app` in `main.py`.
-app = Flask(__name__)
-
-
-# There is a bug in the code.
-class StringProcessor:
- def __init__(self, string):
- self._string = string
-
- def Reverse(self):
- if self._string == "":
- return ""
-
- chars = [c for c in self._string]
- left = 0
- right = len(chars) - 1
- while True:
- tmp = chars[left]
- chars[left] = chars[right]
- chars[right] = tmp
- if left >= right:
- break
- left += 1
- right -= 1
-
- return "".join(chars)
-
-
-@app.route("/reverse_string", methods=["GET"])
-def ReverseString():
- try:
- s = str(request.args.get("string"))
- except Exception as e:
- print(e)
- return "Not a valid string!"
-
- current = StringProcessor(s).Reverse()
- expected = s[::-1]
- return render_template("index.html", current=current, expected=expected)
-
-
-@app.route("/")
-def Hello():
- """Return a friendly HTTP greeting."""
- return """
- Hello! Enter a string to reverse it.
- <form method="get" action="reverse_string">
- <p><input type=text name=string value="abcd">
- <p><input type=submit>
- </form>
- """
-
-
-if __name__ == "__main__":
- # This is used when running locally only. When deploying to Google App
- # Engine, a webserver process such as Gunicorn will serve the app. This
- # can be configured by adding an `entrypoint` to app.yaml.
- app.run(host="127.0.0.1", port=8080, debug=True)
-# [END gae_python3_app]
-# [END gae_python38_app]
diff --git a/appengine/standard_python3/cloud_debugger/noxfile_config.py b/appengine/standard_python3/cloud_debugger/noxfile_config.py
deleted file mode 100644
index 43a5796d1940..000000000000
--- a/appengine/standard_python3/cloud_debugger/noxfile_config.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright 2021 Google LLC
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Default TEST_CONFIG_OVERRIDE for python repos.
-
-# You can copy this file into your directory, then it will be imported from
-# the noxfile.py.
-
-# The source of truth:
-# https://github.com/GoogleCloudPlatform/python-docs-samples/blob/main/noxfile_config.py
-
-TEST_CONFIG_OVERRIDE = {
- # You can opt out from the test for specific Python versions.
- "ignored_versions": ["2.7", "3.6", "3.10", "3.11"],
- # Old samples are opted out of enforcing Python type hints
- # All new samples should feature them
- "enforce_type_hints": False,
- # An envvar key for determining the project id to use. Change it
- # to 'BUILD_SPECIFIC_GCLOUD_PROJECT' if you want to opt in using a
- # build specific Cloud project. You can also use your own string
- # to use your own Cloud project.
- "gcloud_project_env": "GOOGLE_CLOUD_PROJECT",
- # 'gcloud_project_env': 'BUILD_SPECIFIC_GCLOUD_PROJECT',
- # A dictionary you want to inject into your test. Don't put any
- # secrets here. These values will override predefined values.
- "envs": {},
-}
diff --git a/appengine/standard_python3/cloud_debugger/requirements-test.txt b/appengine/standard_python3/cloud_debugger/requirements-test.txt
deleted file mode 100644
index c2845bffbe89..000000000000
--- a/appengine/standard_python3/cloud_debugger/requirements-test.txt
+++ /dev/null
@@ -1 +0,0 @@
-pytest==7.0.1
diff --git a/appengine/standard_python3/cloud_debugger/requirements.txt b/appengine/standard_python3/cloud_debugger/requirements.txt
deleted file mode 100644
index b3b2bb77f1dd..000000000000
--- a/appengine/standard_python3/cloud_debugger/requirements.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-Flask==2.1.0
-google-python-cloud-debugger==3.5
diff --git a/appengine/standard_python3/cloud_debugger/templates/index.html b/appengine/standard_python3/cloud_debugger/templates/index.html
deleted file mode 100644
index 8d320223b899..000000000000
--- a/appengine/standard_python3/cloud_debugger/templates/index.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!DOCTYPE html>
-<!--
- Copyright 2022 Google LLC
-
- Licensed under the Apache License, Version 2.0 (the "License");
- you may not use this file except in compliance with the License.
- You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS,
- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- See the License for the specific language governing permissions and
- limitations under the License.
--->
-
-<html>
- <head>
- <title>Reverse a String</title>
- </head>
-
- <body>
- <table>
- <tr><th>Program Output:</th><th>{{ current }}</th></tr>
- <tr><th>Correct Output:</th><th>{{ expected }}</th><tr>
- </table>
- </body>
-</html>