pip install flask app

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Sure, I'd be happy to provide a tutorial on installing Flask using pip along with a simple code example. Flask is a lightweight web application framework for Python, and it's commonly used for building web applications and APIs.
Before you can install Flask, you need to have Python installed on your system. You can download Python from the official website: Python Downloads.
Open a terminal or command prompt on your computer. The steps for doing this vary depending on your operating system.
It's a good practice to use virtual environments to isolate your project dependencies. To create a virtual environment, run the following command:
This will create a virtual environment named myenv. Activate the virtual environment:
Now that you have a virtual environment set up (or if you chose not to use one), you can install Flask using pip. Run the following command:
This command will download and install Flask and its dependencies.
Now, let's create a simple Flask application. Create a new file named app.py and open it in a text editor. Add the following code:
Save the app.py file and go back to your terminal or command prompt. Make sure you're in the same directory as the app.py file. Run the following command to start the Flask development server:
You should see output indicating that the server is running. Open your web browser and go to http://127.0.0.1:5000/. You should see the message "Hello, Flask!" displayed in your browser.
Congratulations! You've successfully installed Flask and created a simple Flask app. You can now build upon this foundation to create more complex web applications or APIs using Flask.
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