Werkzeug.routing.builderror With Flask Python

**difference to the suggested repeat, my error stemmed from the following line being missing in the original code session['message']=request.form['message'] wherease in the suggest

Solution 1:

You are getting that error because you don't have a route called message and yet you are redirecting to it.

@app.route('/signup', methods=['POST'])defsignup():
session['username'] = request.form['username']
# Create a message route firstreturn redirect(url_for('message'))

Here's a sample route called message

@app.route("/message")defmessage():
    return render_template("message.html")