To install/develop Duffy:

1. Clone the repository and navigate into the project directory.

   ```

   git clone https://github.com/CentOS/duffy.git

   cd duffy

   ```

2. Set up and activate a virtual environment.

   * Using native virtual environment

     ```

     python3 -m venv duffyenv

     source duffyenv/bin/activate

     ```

   Or

   * Using virtualenv wrapper

     ```

     virtualenv duffyenv

     source duffyenv/bin/activate

     ```

   Or

   * Using Poetry virtual environment shell

     ```

     poetry shell

     ```

3. Install using Poetry

   The following command would install all the dependencies for the project including the ones required for the development and testing of the project.

   ```

   poetry install

   ```

   Execute the following command if you wish to installing only the dependencies which are required to run the project but not those required for its development and testing.

   ```

   poetry install --no-dev

   ```

4. Add changes and then test those by running Tox

   ```

   tox

   ```

5. Please be descriptive about the changes introduced in your pull request while making one.