Flask - Language Detector App

Flask - Language Detector App

Creating a simple Flask-based web application for language detection requires integrating Flask with a language detection library. One popular library for this purpose is langdetect.

Here's a step-by-step guide to creating such an app:

  1. Setup and Installation

    Before starting, you'll need to install the necessary libraries. You can do this using pip:

    pip install Flask langdetect 
  2. Creating the Flask App

    Here's a basic implementation:

    from flask import Flask, render_template, request from langdetect import detect app = Flask(__name__) @app.route('/', methods=['GET', 'POST']) def index(): language = None text = "" if request.method == 'POST': text = request.form['text'] try: language = detect(text) except: language = "Error: Language could not be detected." return render_template('index.html', language=language, text=text) if __name__ == "__main__": app.run(debug=True) 
  3. Creating the HTML Template

    In the same directory as your Flask app, create a folder named templates. Inside this folder, create a file named index.html:

    <!DOCTYPE html> <html> <head> <title>Language Detector</title> </head> <body> <h2>Language Detector</h2> <form method="post"> <textarea name="text" rows="10" cols="30">{{ text }}</textarea><br><br> <input type="submit" value="Detect Language"> </form> {% if language %} <h3>Detected Language: {{ language }}</h3> {% endif %} </body> </html> 
  4. Run the App

    With the Flask app and HTML template in place, you can now run the application:

    python your_flask_app_filename.py 

    Then, navigate to http://127.0.0.1:5000/ in your browser, and you should see the Language Detector app.

This is a basic implementation. You can further enhance this application with CSS for styling, better error handling, or additional features like supporting the detection of multiple languages within a single text.


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