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Python Flask Basics Welcome to Flask First Steps

Posted by Vitalis Onyango
Vitalis Onyango
Courses Plus Student 3,115 Points

What am I doing wrong in the first step?

this is my code

from flask import Flask
from flask import render_template

app = Flask(__name__)

@app.route("/")
def index():
    return render_template("index.html")

app.run(debug=True, host="0.0.0.0", port=8000)

When I run it at first and launched it in the browser it was ok, I could view my bear... but now when I'm redoing it again, when I run it I get this error all the time!!

werkzeug.routing.BuildError
werkzeug.routing.BuildError: ('save', {}, None)

???? What is this??

1 Answer

Andreas cormack
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Andreas cormack
Python Web Development Techdegree Graduate 33,011 Points
Andreas cormack
.a{fill-rule:evenodd;}techdegree seal-36
Andreas cormack
Python Web Development Techdegree Graduate 33,011 Points

Cannot see anything wrong with your code it works fine on my machine. Have you got any other views apart from index?

Vitalis Onyango
Vitalis Onyango
Courses Plus Student 3,115 Points

Thanks Andreas I figured out what was wrong. My "index.html" had a problem causing the whole app not to run