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When I run my code I get a 404 error.
I tried to add
app.config['SERVER_NAME'] = '127.0.0.1:500-'
but it didn't help.
This is such a basic Flask app, I don't understand what the problem could be.
I have another flask project that works perfect, but for some reason,
the routes aren't working.
Anyone have an idea what could possibly be going wrong?
Here's my code.
from flask import Flask
app = Flask(__name__)
app.route('/')
def index():
return ""
if __name__ == '__main__':
app.run(debug=True)
You forgot to use # for the decorator. Below should work
from flask import Flask
app = Flask(__name__)
#app.route('/')
def index():
return ""
if __name__ == '__main__':
app.run(debug=True)
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So basically, im trying to make a website using flask, however, when i type: from flask import SQLAlchemy, it gives me this error message:
File "C:\Users\PycharmProjects\pythonProject4\website_init_.py",
line 2, in
from flask import sqlalchemy ImportError: cannot import name 'SQLAlchemy' from 'flask'
(C:\Users\PycharmProjects\pythonProject4\venv\Lib\site-packages\flask_init_.py)
Anyone know how to solve it?
The correct way to import SQLAlchemy is
from flask_sqlalchemy import SQLAlchemy
source
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How to fix this error :
cannot import name 'reder_template' from 'flask' (/usr/local/lib/python3.9/site-packages/flask/init.py)
from flask import Flask, request, reder_template, redirect
import os
import sqlite3
currentlocation = os.path.dirname(os.path.abspath(__file__))
myapp = Flask(__name__)
#myapp.route("/")
def homepage():
return render_template("homepage.html")
The problem is a typo, you have imported reder_template instead of render_template from flask.
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Im watching this tutorial on YouTube , how to make a POS software using python and kivy . After running this code
import kivy.app import app
from kivy.uix.boxlayout import boxlayout
class SinginWindow(BoxLayout):
pass
class SigninApp(App):
def build(self):
return signinWindow()
if __name__=="__main__":
sa = SigninApp()
sa.run()
I get the following error
import kivy.app import app
^
SyntaxError: invalid syntax
you are typing import twice, it should be from kivy.app import app
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Closed 6 years ago.
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I am new to Flask and am trying to turn on debug so when I type in "http://127.0.0.1:5000/welcome" into my URL it will provide debugging information.
Instead I am given a 404 URL is not found. Which does make sense as I did not create the welcome.html file yet. What is troubling though is it does not provide debugging information. My question is how can I make debug=True work? Even when I do not have the welcome function declared it does not work.
Currently I have Flask 0.10.1, jinja2 2.8, and Werkzeug 0.11.4.
The terminal prints out:
* Restarting with stat
* Debugger is active!
* Debugger pin code: 281-296-874"
The following is my code:
__author__ = 'Robert'
from flask import Flask, render_template
app = Flask(__name__)
#app.route("/")
def hello():
return "Hello BBck!"
#app.route("/welcome")
def welcome():
return render_template("welcome.html")
if __name__ == "__main__":
app.run(debug=True)
I think that your second "#app.route" statement is missing the URL reference
it should read
#app.route("/welcome")
def welcome():
return render_template("welcome.html")
Then you might still get a 404 error but that should be because you haven't created the welcome.html file in your templates folder
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I'm using EVE for couple of days to create my own REST API but I want to have custom Flask Controller integrated with EVE is there any possibility to do this? Thanks.
Ok I will answer my own question. After reading more about Eve, you can use any of Flask's methods because Eve is simply inheriting from the Flask class. For example, you can do this:
from eve import Eve
app = Eve()
#app.route("/x")
def hello():
return "Hello World!"
if __name__ == '__main__':
app.run(debug=True)
There's more info at the Flask documentation site here: Flask