handling python 2 vs 3 about binder HOT 5 OPEN

I'd suggest noting that you will install python 2 dependencies by default.

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Thanks for reporting this! The current system by default should try to install all requirements for both Python 2 and Python 3. The build succeeds if either one succeeds, so currently if the pip install errors for either 2 or 3 (but not both), it will happen silently.

We're planning to expose this as an option in the UI when selecting requirements.txt, e.g. you can select either Py2 or Py3 or both (the default) as the target for requirements.txt, which should hopefully make it more transparent.

And we're adding a whole new live log interface, to help debug this kind of thing.

For now, are you sure the same requirements install successfully in Python 3? Maybe point us to the repo so we can debug it further on our end?

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Our repo is here https://github.com/blaze/dask-examples

The notebook in question is https://github.com/blaze/dask-examples/blob/master/github-data.ipynb

The dependency that fails to install is dask.

However this notebook can easily be switched to python 2

from binder.

Hello. I'm just starting to use binder for An Introduction to Applied Bioinformatics (IAB). It looks incredibly useful. IAB is Py3 only, so I wanted to check whether there was an update on how a default kernel could be specified (so I don't have to have users change their kernel on loading up each notebook - currently that step is a little clunky, see the note that I have on it here).

One note on my setup - because I generated the IAB notebooks dynamically from markdown files, they're not included in the main repo. So, the repo that I point binder to is http://github.com/gregcaporaso/built-iab.

Thanks for the project, I'm really excited to use this!

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Also having this issue. Sadly my tutorial uses Py3 only as well: https://github.com/zbyte64/python_datagov_notebooks

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