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

Sending Data from HTML Form to Python Script in Flask

In Flask, sending data from an HTML form to a Python script involves implementing an HTML form with appropriate attributes and a Python view to handle the data on the server side. Here's how you can accomplish this:

HTML Form Setup

The HTML form needs to specify the following attributes:

• action: Sets the URL for submitting the form data. Use url_for to generate the URL for the handling view in your script.
• method="post": Indicates that the data will be submitted using the POST method.
• enctype="multipart/form-data": Required if the form contains file inputs.

Additionally, each input element that you want to pass data from must have a name attribute.

Python View for Handling Data

Create a Python view to handle the submitted data. This view will access the data using request.form under the name key of the corresponding input. File inputs will be accessible in request.files.

@app.route('/handle_data', methods=['POST'])
def handle_data():
    projectpath = request.form['projectFilepath']
    # Your code to process the data and return a response

Example HTML Form

With these attributes set, your HTML form might look something like this:

<form action="{{ url_for('handle_data') }}" method="post">
    <input type="text" name="projectFilepath">
    <input type="submit">
</form>

Conclusion

By following these steps, you can successfully send data from an HTML form to a Python script using Flask. This powerful feature enables interactive user input and data processing in web applications.

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