Unable to build Python virtualenv

Posit Professional & Hosted Products Posit Connect
1

I have a developer trying to deploy first Jupyter Notebook to our RStudio Connect environment. He receives this error, and the deployment fails:

Building Jupyter notebook...
Bundle requested Python version 3.6.3; using /opt/rh/rh-python36/root/usr/bin/python3.6 which has version 3.6.3
2019/08/09 14:50:24.898609273 Running with python "3.6.3 (default, Apr 10 2019, 14:37:36) [GCC 4.8.5 20150623 (Red Hat 4.8.5-16)]" at /opt/rh/rh-python36/root/usr/bin/python3.6
2019/08/09 14:50:24.901802350 Running as user: rstudio-connect
2019/08/09 14:50:24.915012802 Skipped packages: pywinpty==0.5.5,wincertstore==0.2
2019/08/09 14:50:24.915060105 Unexpected error while building python environment: Unicode-objects must be encoded before hashing
Build error: exit status 255

The notebook is very simple ; n=1. Tried printing 'hello world' instead and got same result.

Connect config file contains:
[Python]
Enabled = true
Executable = /opt/rh/python27/root/bin/python2
Executable = /opt/rh/rh-python36/root/bin/python3

The Python install includes:
rh-python36-runtime-2.0-1.el7.x86_64
rh-python36-python-virtualenv-15.1.0-2.el7.noarch
rh-python36-python-3.6.3-7.el7.x86_64
rh-python36-python-devel-3.6.3-7.el7.x86_64
rh-python36-python-setuptools-36.5.0-1.el7.noarch
rh-python36-python-libs-3.6.3-7.el7.x86_64
rh-python36-2.0-1.el7.x86_64
rh-python36-python-pip-9.0.1-2.el7.noarch

Is something missing?

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2

Hi @Arnesond:

Thank you for your post, and for trying out the Jupyter publishing functionality in RStudio Connect!

Would you mind posting this bug report to the rsconnect-jupyter repository as a new issue? That way our developers can take a closer look and ask for more details there:

It would also be helpful if you can include information about how you installed Python, and provide the output of pip freeze from the same Python environment that you are publishing from. Perhaps that will give us more information about the particular package or field that is causing the error.

Kris

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