Installing PyCue and PyOutline

PyCue is the OpenCue Python API. OpenCue client-side Python tools, such as CueGUI and CueAdmin, all use PyCue for communication with your OpenCue deployment.

PyOutline is a Python library. It provides a Python interface to the job specification XML, allowing you to construct complex jobs with Python code instead of working directly with XML. PyOutline is used by CueSubmit to construct its job submissions.

Install the PyCue and PyOutline libraries on the systems of all users that want to use them. Make sure you also install PyCue and PyOutline on all systems that run tools such as CueGUI and CueSubmit, which depend on the libraries.

Before you begin

PyCue requires a Cuebot deployment to communicate with. Ask the admin of your OpenCue deployment what your Cuebot hostname is. If you’re the admin, you can follow Deploying Cuebot to create your Cuebot instance.

You also need the Python pip and virtualenv tools. Use of a virtual environment isn’t strictly necessary but is recommended to avoid conflicts with other installed Python libraries.

Installing PyCue and PyOutline

To install PyCue and PyOutline, you can either download a published release or install the library directly from source.

Option 1: Installing a published release

To install a published release, visit the OpenCue releases page and download the pycue and pyoutline tarballs from the list of assets for the latest release.

Install PyCue:

export PYCUE_TAR="<path to pycue tar.gz>"
export PYCUE_DIR=$(basename "$PYCUE_TAR" .tar.gz)
virtualenv venv # If you previously created a virtualenv, skip this step.
source venv/bin/activate
tar xvzf "$PYCUE_TAR"
cd "$PYCUE_DIR"
pip install -r requirements.txt
python setup.py install
cd ..
rm -rf "$PYCUE_DIR"

Then follow the same steps to install PyOutline:

export PYOUTLINE_TAR="<path to pyoutline tar.gz>"
export PYOUTLINE_DIR=$(basename "$PYOUTLINE_TAR" .tar.gz)
tar xvzf "$PYOUTLINE_TAR"
cd "$PYOUTLINE_DIR"
pip install -r requirements.txt
python setup.py install
cd ..
rm -rf "$PYOUTLINE_DIR"

Option 2: Installing from source

Make sure you’ve checked out the source code and your current directory is the root of the checked out source.

Install PyCue:

virtualenv venv  # If you previously created a virtualenv, skip this step.
source venv/bin/activate
pip install -r requirements.txt
cd proto
python -m grpc_tools.protoc -I=. --python_out=../pycue/opencue/compiled_proto --grpc_python_out=../pycue/opencue/compiled_proto ./*.proto
cd ../pycue/opencue/compiled_proto
2to3 -w -n *
cd ../..
python setup.py install

Then install PyOutline:

cd ../pyoutline
python setup.py install

Configuring and verifying the install

If you installed PyCue into a virtual environment, make sure you’ve activated that environment.

Run the following commands to set the CUEBOT_HOSTS environment variable and verify the installation:

CUEBOT_HOSTS="localhost" python
import opencue
import outline
[show.name() for show in opencue.api.getShows()]

The expected output of show.name() is a list of the shows present in your OpenCue database:

[u'testing']

What’s next?

• Installing CueGUI

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