Flask/Python - handling dropdown to open different HTML pages -

i'm learning flask , python along html , css. i've got flask template render dropdown.

what need this: when select value dropdown opens new html page corresponding value chosen(different page different options chosen).

i tried searching web couldn't resources. when submit dropdown option submit button page gives error message saying:

method not allowed

the method not allowed requested url.

please guide me best possible solution.

below code.

pro.html

    <form name="startpage" method="post" action="">     <div class="form-group">         <div class="input-group">             <select name = "method_cipher" id = "method_cipher">                  <option value="encrypt">encrypt</option>                 <option value="decrypt">decrypt</option>             </select>             <select name = "cipher_type" id = "cipher_type">                  <option value="caesar">caesar</option>                 <option value="transposition">transposition</option>                 <option value="reverse">reverse</option>             </select>         </div>         <button type="submit" name="submit" value="success" class="btn btn-default">submit</button>     </div>     </form>  

test.py

    import flask     app = flask.flask(__name__)     @app.route('/')     def index():         return flask.render_template('pro.html')     @app.route("/test" , methods=['get', 'post'])     def test():         if flask.request.method == 'post':             select = flask.request.form.get('method_cipher')             if(select == 'encrypt'):                 return flask.render_template('lastpage.html')     if __name__ == '__main__':         app.debug=true         app.run() 

edit - want open different web pages(html page) different dropdown option chosen user when user chose "encrypt" , submit want open "lastpage.html" if chose "decrypt" other page , on different options. not happening so.

your form in pro.html sends data url specified action attribute. if leave out or set empty string did requests goes same page /.

but set form handling in different view function. want post one.

so change form post correct url

<form ... action="/test" ...> 

that work not idea hardcode target url in template. assume using jinja can let insert url you

<form ... action="{{ url_for("test") }}" ...> 

take @ url_for function if haven't already.