Prompting "ImportError: No module named py27_urlquote" when running dev_appserver.py on Google Cloud SDK

Question

When I run dev_appserver.py on google-cloud-sdk, I get ImportError: No module named py27_urlquote.

Traceback (most recent call last):
  File "/Users/user/Downloads/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 109, in <module>
    _run_file(__file__, globals())
  File "/Users/user/Downloads/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 103, in _run_file
    _execfile(_PATHS.script_file(script_name), globals_)
  File "/Users/user/Downloads/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 83, in _execfile
    execfile(fn, scope)
  File "/Users/user/Downloads/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 44, in <module>
    from google.appengine.tools.devappserver2 import dispatcher
  File "/Users/user/Downloads/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/dispatcher.py", line 43, in <module>
    from google.appengine.tools.devappserver2 import module
  File "/Users/user/Downloads/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py", line 39, in <module>
    import py27_urlquote
ImportError: No module named py27_urlquote

I have tried the following:

1. Reinstall Cloud SDK
2. Find out about the py27_urlquote module (I couldn't find any such information ...)
3. Change the version of CLOUDSDK_PYTHON to 2.7 or 3.8 and execute

Beeler

Answer 1

Right now this is a public issue and is currently being addressed by our Google Engineering Team. A workaround was provided for you to run your local development server:

1. Install pip for Python 2

sudo apt update
sudo apt install python-pip

2. Install urlquote instead of py27_urlquote

pip install urlquote

3. Modify module.py located on your local directory from the error message

/Users/user/Downloads/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/module.py

4. Replace py27_urlquote to urlquote. There are 3 lines of code that uses py27_urlquote. Specifically lines 39, 833, and 836.

You can check this public tracker similar to your issue for more information and updates.

Pasahow

It seems that the equivalent call in urlquote is not urlquote but quote: pypi.org/project/urlquote . To make it work I've replaced the import with from urlquote import quote and the other two lines from py27_urlquote.urlquote(... to quote(... – Ambie

Step 2 may need to be pip2 install urlquote – Ranunculus

Answer 2

I just encountered this problem too on the SDK version 359.0.0

Instead of updating the SDK files manually, I opted for downgrading to a previous version.

I found that version 357.0.0 works fine.

To downgrade, run the following command:

gcloud components update --version 357.0.0

Sing