Install Apache Airflow and Astronomer Cosmos

Teradata Developer Guides

ft:locale: en-US
ft:lastEdition: 2026-08-18

Create a new python environment to manage airflow and its dependencies. Activate the environment: !!! note This will install Apache Airflow as well.
```
python3 -m venv airflow_env
source airflow_env/bin/activate
pip install "astronomer-cosmos"
```

Install the Apache Airflow Teradata provider

pip install "apache-airflow-providers-teradata"

Set the AIRFLOW_HOME environment variable.
```
export AIRFLOW_HOME=~/airflow
```
Tip

Add this line to your shell profile (e.g. ~/.zshrc on macOS, ~/.bashrc on Linux/WSL) so it's set automatically in every new terminal session, instead of having to re-export it each time:
```
echo 'export AIRFLOW_HOME=~/airflow' >> ~/.zshrc
```