ModuleNotFoundError: No module named 'packaging'

[jmctune]

Thanks for stopping by to let us know something could be better!

PLEASE READ: If you have a support contract with Google, please create an issue in the support console instead of filing on GitHub. This will ensure a timely response.

Please run down the following list and make sure you've tried the usual "quick fixes":

• Search the issues already opened: https://github.com/googleapis/python-api-core/issues
• Search StackOverflow: https://stackoverflow.com/questions/tagged/google-cloud-platform+python

If you are still having issues, please be sure to include as much information as possible:

Environment details

• OS type and version: Windows 11
• Python version: python --version Python 3.11.3
• pip version: pip --version pip 22.3.1
• google-api-core version: pip show google-api-core 2.28.0

Steps to reproduce

The google-api-python-client library requires this library to function. There was a new tag a few hours ago that introduced some changes to the way versioning is being done: d36e896. It doesn't look like the packaging library is being installed as I am getting an error when trying to use the google-api-python-client library.

Stack trace

  File "---\app\common\translators\googletranslate.py", line 2, in <module>
    from googleapiclient.discovery import build
  File "---\app\venv\Lib\site-packages\googleapiclient\discovery.py", line 42, in <module>
    import google.api_core.client_options
  File "---\app\venv\Lib\site-packages\google\api_core\__init__.py", line 20, in <module>
    from google.api_core import _python_package_support
  File "---\app\venv\Lib\site-packages\google\api_core\_python_package_support.py", line 28, in <module>
    from packaging.version import parse as parse_version
ModuleNotFoundError: No module named 'packaging'

Making sure to follow these steps will guarantee the quickest resolution possible.

Thanks!

[hayeshaus]

We are also experiencing the same issue:

File "/usr/local/lib/python3.10/site-packages/simple_gcp_object_downloader/download_gcp_object.py", line 2, in <module> from google.cloud import storage 
File "/usr/local/lib/python3.10/site-packages/google/cloud/storage/__init__.py", line 35, in <module> from google.cloud.storage.batch import Batch 
File "/usr/local/lib/python3.10/site-packages/google/cloud/storage/batch.py", line 43, in <module> from google.cloud import exceptions 
File "/usr/local/lib/python3.10/site-packages/google/cloud/exceptions/__init__.py", line 24, in <module> from google.api_core import exceptions 
File "/usr/local/lib/python3.10/site-packages/google/api_core/__init__.py", line 20, in <module> from google.api_core import _python_package_support 
File "/usr/local/lib/python3.10/site-packages/google/api_core/_python_package_support.py", line 28, in <module> from packaging.version import parse as parse_version 
ModuleNotFoundError: No module named 'packaging' 

[jmctune]

As a workaround, you can pin to the previous version of this library until this is fixed:

google-api-core==2.27.0

[aaron-tillekeratne]

same issue, used @jmctune's workaround for now

[noahbuttner]

Same issue:

  File "/builds/nuseds/nuseds-tools/calendar_sync/main.py", line 15, in <module>
    from googleapiclient.discovery import build
  File "/usr/local/lib/python3.14/site-packages/googleapiclient/discovery.py", line 42, in <module>
    import google.api_core.client_options
  File "/usr/local/lib/python3.14/site-packages/google/api_core/__init__.py", line 20, in <module>
    from google.api_core import _python_package_support
  File "/usr/local/lib/python3.14/site-packages/google/api_core/_python_package_support.py", line 28, in <module>
    from packaging.version import parse as parse_version
ModuleNotFoundError: No module named 'packaging'

[pierrotsmnrd]

This can also be fixed by installing packaging==25.0

Environment details:

• OS type and version: MacOS 15.5
• Python version: 3.12.12
• pip version: 25.2
• google-api-core version: 2.28.0

[thanasis457]

Same here. Version 2.28 does not install packaging which means you either have to revert to version 2.27 or install the packaging module.