Activate venv in current terminal

.devcontainer/devcontainer.json

@@ -9,11 +9,18 @@
 		"vscode": {
 			// Set *default* container specific settings.json values on container create.
 			"settings": {
-				"python.defaultInterpreterPath": "/workspaces/flask/.venv/bin/python",
+				// Settings for the python extension.
+				"python.defaultInterpreterPath": "${workspaceFolder}/.venv",
+				"python.terminal.activateEnvInCurrentTerminal": true,
 				"python.linting.enabled": true,
 				"python.linting.pylintEnabled": true
 
-			}
+			},
+			// Installs extensions on container create.
+			"extensions": [
+				"ms-python.python",
+				"ms-python.vscode-pylance"
+			]
 		}
 	},
 

CONTRIBUTING.rst

@@ -79,15 +79,16 @@ a `devcontainer`_ that installs required dependencies for you.
 -   Fork Flask to your GitHub account by clicking the `Fork`_ button.
 -   From your fork's repository page, click the green "Code" button and
     then "Create codespace on main".
--   Wait for the codespace to load and the "postCreateCommand" to
+-   Wait for the codespace to load and the ``postCreateCommand`` to
     finish running.
--   Open a new terminal or run ``. .venv/bin/activate`` to activate the
+-   Open a new terminal or run the following command to activate the
     python virtualenv.
--   Checkout a new branch and `start coding`_.
 
-Note that when you reconnect to an existing codespace, you may need to
-reactivate your python virtualenv by opening a new terminal or running
-the ``. .venv/bin/activate`` command.
+    .. code-block:: text
+
+        $ . .venv/bin/activate
+
+-   Checkout a new branch and `start coding`_.
 
 .. _GitHub Codespaces: https://docs.github.com/en/codespaces
 .. _devcontainer: https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/adding-a-dev-container-configuration/introduction-to-dev-containers