I keep getting a $"$ cur.execute$($classes$\_$table$)$

sqlite$3.$OperationalError: incomplete input"

my student table works when i run it without the classes table so i dont know what is wrong. $($pretty new to all this$)$

import sqlite$3$ as sql

Database$\_$Content $=[$

$\{$

$"$id$"$: $0,$

"currentlyEnrolled": False,

"age": $21,$

"firstName": "Veronica",

"lastName": "Potter",

"gender": "female",

"email": "veronicapotter@furnigeer.com",

"phone": $"+1(849)512-2231",$

"address": $"771$ Downing Street, Tyro, Nebraska, $6696",$

"registered": "Wed Feb $19202007$:$25$:$47",$

'classes': $"0,2,14,9"$

$\},$

$\{$

$"$id$"$: $1,$

"currentlyEnrolled": True,

"age": $25,$

"firstName": "Bray",

"lastName": "Summers",

"gender": "male",

"email": "braysummers@furnigeer.com",

"phone": $"+1(833)417-2236",$

"address": $"184$ Dekoven Court, Driftwood, Marshall Islands, $6520",$

"registered": "Mon Aug $06201804$:$13$:$31",$

"classes": $"1,9,4,14"$

$\}$

$]$

Classes $=[$

$\{$

$"$id$"$: $0,$

"code": "INFO $1003",$

"title": "Basic Programming",

"description": "Basic programming class using Python."

$\},$

$\{$

$"$id$"$: $1,$

"code": "INFO $1001",$

"title": "Intro to Programming",

"description": "Visual programming class"

$\},$

$\{$

$"$id$"$: $2,$

"code": "INFO $1002",$

"title": "Intro to Web Development",

"description": "Basics of HTML and CSS$"$

$\}$

$]$

conn $=$ sql$.$connect$(\text{'}$main$.$db$\text{'})$

cur $=$ conn.cursor$()$

student$\_$table $=(\text{'}$CREATE TABLE IF NOT EXISTS students $($id INTEGER not null primary key, $\text{'}$

$\text{'}$ currentlyEnrolled TEXT not null, age INTEGER not null, firstName VARCHAR$(30),\text{'}$

$\text{'}$ lastName VARCHAR$(30),$ gender VARCHAR$(7),$ email VARCHAR$(40),$ phone VARCHAR$(11),\text{'}$

$\text{'}$ address TEXT not null, registered VARCHAR, classes INTEGER$)\text{'})$

cur.execute$($student$\_$table$)$

for x in Database$\_$Content:

cur.execute$(\text{'}\text{'}\text{'}$INSERT INTO students $($id$,$ currentlyEnrolled, age, firstName, lastName,

gender, email, phone, address, registered, classes$)$ VALUES $(?,?,?,?,?,?,?,?,?,?,?)\text{'}\text{'}\text{'},$

$($x$[\text{'}$id$\text{'}],$ x$[\text{'}$currentlyEnrolled$\text{'}],$ x$[\text{'}$age$\text{'}],$ x$[\text{'}$firstName$\text{'}],$ x$[\text{'}$lastName$\text{'}],$

x$[\text{'}$gender$\text{'}],$ x$[\text{'}$email$\text{'}],$ x$[\text{'}$phone$\text{'}],$ x$[\text{'}$address$\text{'}],$ x$[\text{'}$registered$\text{'}],$ x$[\text{'}$classes$\text{'}]))$

classes$\_$table $=(\text{'}$CREATE TABLE IF NOT EXISTS classes $($id INTEGER not null primary key, $\text{'}$

'code VARCHAR$(30),$ title VARCHAR$(100),$ description VARCHAR$(100)\text{'})$

cur.execute$($classes$\_$table$)$

for i in Classes:

cur.execute$(\text{'}\text{'}\text{'}$INSERT INTO classes $($id$,$ code, title, description$)$ VALUES $(?,?,?,?)\text{'}\text{'}\text{'},$

$($i$[\text{'}$id$\text{'}],$ i$[\text{'}$code$\text{'}],$ i$[\text{'}$title$\text{'}],$ i$[\text{'}$description$\text{'}]))$

print$($cur$.$execute$(\text{'}$SELECT $*$ from students'$).$fetchall$())$

print$($cur$.$execute$(\text{'}$SELECT $*$ from classes'$).$fetchall$())$

conn.commit$()$

conn.close$()$