Now we are ready to start developing our REST API. Hello World The first endpoint code: ### First Steps: Your Hello World Flask API Here’s how to build your first minimal Flask REST API: ```python from flask import Flask app = Flask(__name__) @app.route('/') def hel...
In the preceding code block, you first import theFlaskobject from theflaskpackage. You then use it to create your Flask application instance with the nameapp. You pass the special variable__name__that holds the name of the current Python module. It’s used to tell the instanc...
python-c"import flask; print(flask.__version__)" Copy You use thepythoncommand line interfacewith the option-cto execute Python code. Next you import theflaskpackage withimport flask;then print the Flask version, which is provided via theflask.__version__variable. The output will be a ve...
In Python, there are three primary methods to import files: the import statement, the importlib module, and the from clause. Each of these methods has its unique use cases and advantages. ADVERTISEMENT In this article, we will explore these methods in detail, providing clear examples and ...
Next is to create a sample flask application python file: sudo nano app.py Insert the following lines of code: from flask import Flask app = Flask(__name__) @app.route('/') def index(): return 'Hello World' Save the file, close it and set up the FLASK_APP environment variable. ...
Unimport a Module in Python We use theimportcommand to load a specific module to memory in Python. We cannot unimport a module since Python stores it in the cache memory, but we can use a few commands and try to dereference these modules so that we are unable to access it during the...
Installation of the Flask migrate module in Python environment: Syntax: pip install flask-migrate Output: Example #2 Initializing the migrate instance: Syntax: from flask_migrate import Migrate from flask import Flask appFlask = Flask(__name__) ...
Python provides us with an “os” module which has some in-built methods that would help us in performing the file operations such as renaming and deleting the file. In order to use this module, first of all, we need to import the “os” module in our program and then call the relate...
sudo apt install python3-venvCopy Once the module is installed we are ready to create a virtual environment for our Flask application. 2. Creating a Virtual Environment Start by navigating to the directory where you would like to store your Python 3 virtual environments. It can be your home...
2. Calling the module of socketio in python. from flask_socketio import SocketIO 3. Instantiating the socketio using the application instance. socketInstance = SocketIO(< Flask application instance >) < Flask application instance > needs to be replaced with the instance of the Flask application...