"Project was not passed" error, even though ran

I attempted to follow the setup instructions and ran into an odd error. The instructions I was following are here: https://googlecloudplatform.github.io/gcloud-python/stable/gcloud-auth.html

Here is what I attempted:

1. virtualenv ~/venv
2. source ~/venv/bin/activate
3. pip install gcloud
4. gcloud auth login
5. python

>>> from gcloud import pubsub
>>> pubsub.Client()

Here’s the error I received when I ran pubsub.Client()

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File ".../venv/local/lib/python2.7/site-packages/gcloud/client.py", line 184, in __init__
    _ClientProjectMixin.__init__(self, project=project)
  File ".../venv/local/lib/python2.7/site-packages/gcloud/client.py", line 143, in __init__
    raise EnvironmentError('Project was not passed and could not be '
EnvironmentError: Project was not passed and could not be determined from the environment.

I do appear to have valid credentials. gcloud.credentials.get_credentials() happily provides me with a perfectly good GoogleCredentials object which works fine with httplib2 if I invoke it directly.

[tseaver]

Thanks for the report! In addition to credentials, we need to know what project to use: a given set of credentials can have access to multiple projects. On GCE / GAE, we can determine the project from the host setup. On your own machine, you need to set an environment variable. E.g.:

$ export GCLOUD_PROJECT=flaky-piecrust-227

Or you can pass the project to the Client constructor:

>>> from gcloud import pubsub
>>> client = pubsub.Client('flaky-piecrust-227')

I think the “usage doc” sections should all link to a shared page explaining this requirement (similar to the Authentication page). @dhermes, @jgeewax WDYT?

[dhermes]

Not really. oauth2client is only concerned with auth.