Using profiles with Dependency Injection
This application illustrates Profiles (Modes) usage with Injector library. This technique can be handy to build few environments like: development, test, production (default).
This application supports two running profiles:
- default
- development
To run application execute one of the:
injector_example_main.py --Profile default
injector_example_main.py --Profile development
the profile name argument here will define classes implementations accordingly.
To create a virtual environment, go to your project’s directory and run venv.
python3 -m venv venv
Venv will create a virtual Python installation in the venv folder. Note You should exclude your virtual environment directory from your version control system using .gitignore or similar. Activate the venv
source venv/bin/activate
You can confirm you’re in the virtual environment by checking the location of your Python interpreter:
which python
If you want to switch projects or otherwise leave your virtual environment, simply run:
deactivate
Pip can export a list of all installed packages and their versions using the freeze command:
pip freeze > requirements.txt
Then you can tell pip to install all the packages in requrements.txt using the -r flag:
python3 -m pip install -r requirements.txt
See more at python.org