How to Send HTML Form Data to a Flask Python Script?

Sending Data from HTML Form to Python Script in Flask

When developing web applications with Flask, it's often necessary to receive and process data from HTML forms. This enables users to interact with your application and provide input.

Passing User Input from HTML Form

To pass user input from an HTML form to a Python script in Flask:

1. Configure the HTML Form:

   • Assign a name attribute to the input field(s) from which you want to retrieve the data.
   • Set the action attribute of the form tag to point to the endpoint in your Python script that will handle the data.
   • Set the method attribute of the form to POST.
   • Include enctype="multipart/form-data" in the form tag if the form contains file inputs.

2. Create a View in Your Python Script:

   • Define a view decorated with app.route in your Python script. This view will receive the submitted data.
   • In the view, use request.form to access the submitted data.
   • Process the user input as needed.

Example Code

Consider the HTML form provided:

<form>
  <input type="text">

To capture the user input from this form, follow these steps:

1. Set the form's action to the endpoint:

   <form action="{{ url_for('handle_data') }}" method="POST" enctype="multipart/form-data">

2. Create the view in your Python script:

   @app.route('/handle_data', methods=['POST'])
   def handle_data():
       projectpath = request.form['projectFilepath']
       # Process the user input here

By following these steps, you can successfully pass user input from an HTML form to a Python script in Flask.

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