How to Build a Python Flask Calculator in Just Minutes!

Are you looking for a quick and easy way to build a calculator using Python and the Flask framework? Look no further! In this tutorial, we will guide you through the steps to create your very own calculator in just minutes.

Step 1: Set up your Flask project

First, make sure you have Python and Flask installed on your computer. You can install Flask using pip by running the following command in your terminal:

pip install Flask

Next, create a new directory for your Flask project and navigate to it in your terminal.

Step 2: Create your Flask app

Create a new file called app.py and add the following code:

“`python
from flask import Flask, request

app = Flask(__name__)

@app.route(‘/’)
def calculator():
return ‘Calculator App’

if __name__ == ‘__main__’:
app.run()
“`

Run your Flask app by executing the following command in your terminal:

python app.py

You should see a message saying ‘Running on http://127.0.0.1:5000/’. This means your Flask app is up and running!

Step 3: Add a calculator function

Now, let’s add a simple calculator function to our Flask app. Modify your app.py file to include the following code:

“`python
from flask import Flask, request

app = Flask(__name__)

@app.route(‘/’)
def calculator():
num1 = request.args.get(‘num1’, type=int)
num2 = request.args.get(‘num2′, type=int)

if num1 and num2:
result = num1 + num2
return f’The result is: {result}’
else:
return ‘Please provide valid numbers’

if __name__ == ‘__main__’:
app.run()
“`

Now you can test your calculator by navigating to http://127.0.0.1:5000/?num1=5&num2=3 in your web browser. You should see the result ‘The result is: 8’. Feel free to try different numbers to see the calculator in action!

Step 4: Customize your calculator

Now that you have a basic calculator up and running, you can customize it further by adding more operations like subtraction, multiplication, and division. You can also add a simple HTML form to input the numbers and display the result on the webpage.

With just a few lines of code, you can build your very own Python Flask calculator in just minutes!