version 0.16.0 made grpcio a hard requirement even without the grpc extra, breaking Python3 use

[Taywee]

You can see this in the Requires Distributions on Pypi

grpcio still does not work in python3, making python3 projects unable to use the latest gcloud-python module.

You can see this is caused by https://github.com/GoogleCloudPlatform/gcloud-python/blob/0.16.0/setup.py#L29 where it is done if it is built in python2.7, even though it may be installed in python3

[daspecster]

/cc @tseaver

[tseaver]

@Taywee Thanks for the report! Per setup.py, grpcio is only a hard requirement for Python 2.7. However, we have not updated setup.cfg to turn off universal = 1 for wheel building.

Our first response should be to delete the broken none-any wheel distribution for 0.16.0. After that, we can look at building the wheel file both for Python 2.7 and for Python 3.4+. @dhermes do you have the keys to be able to delete that file manually?

[daspecster]

This may also be affecting 0.15.0 as well.

[tseaver]

@daspecster Note that in 0.15.0 those were "extra" dependencies: in 0.16.0 they show up as unconditonal.

[daspecster]

I'm probably missing something very obvious here, but it looks the same to me except for the version number?

0.16.0

[tseaver]

@daspecster See the ; extra == 'grpc' at the end?

AFAICT, the current grpcio release is actually OK for Python 3.4+, as long as one installs it first. There are a couple of issues in the GAX pubsub layer and our tests, though.

[daspecster]

@tseaver, yeah, isn't that in both 0.15.0 and 0.16.0?

0.16.0

0.15.0

[dhermes]

@tseaver RE:

@dhermes do you have the keys to be able to delete that file manually?

Sent you an email with the necessary PyPI info.

[Taywee]

@daspecster You've missed that in 0.16.0 grpcio shows up in the list twice.

[daspecster]

@Taywee Ah yes! That's it. Sorry for the noise!

[daspecster]

@tseaver, did you have any luck with pypi?

[tseaver]

@dhermes sent me the credentials, but I've dropped the ball so far.