Python Is Throwing "syntax Error" While Using @app.route

Python is throwing 'Syntax Error' when I compile the code below. File 'app.py', line 11 @app.route('/') ^ SyntaxError: invalid syntax I'm not sure what it means. from fla

Solution 1:

You must define the function after the route decorator, i.e. after @app.route

Updated code

@app.route("/")deffunction_main():
    #all logics herereturn render_template('index.html', pewds_sub = subsp, tseries_sub = subt)

Solution 2:

Make sure to process your calculations inside function else try to pass those argument in defined function.

from flask import Flask, render_template
import urllib.request
import json
import time

app = Flask(__name__ ,template_folder='template')
namep = "PewDiePie"
namet = "TSeries"
key = "MY_API_KEY"@app.route("/")defmain():
    for x inrange(5):
        time.sleep(2)
        datat = urllib.request.urlopen("https://www.googleapis.com/youtube/v3/channels?part=statistics&forUsername="+namep+"&key="+key).read()
        datap = urllib.request.urlopen("https://www.googleapis.com/youtube/v3/channels?part=statistics&forUsername="+namet+"&key="+key).read()
        subt = json.loads(datat)["items"][0]["statistics"]["subscriberCount"]
        subsp = json.loads(datap)["items"][0]["statistics"]["subscriberCount"]
    return render_template('index.html', pewds_sub = subsp, tseries_sub = subt)

if __name__ == "__main__":
    app.run(debug=True, host="0.0.0.0", port=80)

Solution 3:

in my case,

I initiated a try block just above for the database connection and forget to put catch block, that's why I have encountered this error.

so I suggest anyone facing the same error,

should check the code above @app.route('/') because if you have import flask

properly this should work pretty fine syntax error in this statement usually indicates that you might have a problem above this line and not at that line.