vault backup: 2024-04-13 17:32:12

Python-virtual-environment.md.md

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+To create a virtual environment, go to your project’s directory and run the following command. This will create a new virtual environment in a local folder named .venv:
+```bash
+python3 -m venv .venv
+```
+The second argument is the location to create the virtual environment. Generally, you can just create this in your project and call it .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 a virtual environment
+Before you can start installing or using packages in your virtual environment you’ll need to activate it. Activating a virtual environment will put the virtual environment-specific python and pip executables into your shell’s PATH.
+```bash
+source .venv/bin/activate
+```
+To confirm the virtual environment is activated, check the location of your Python interpreter:
+```bash
+which python
+```
+While the virtual environment is active, the above command will output a filepath that includes the .venv directory, by ending with the following:
+
+'.venv/bin/python'
+
+While a virtual environment is activated, pip will install packages into that specific environment. This enables you to import and use packages in your Python application.
+
+Deactivate a virtual environment
+If you want to switch projects or leave your virtual environment, deactivate the environment:
+```bash
+deactivate
+```