I'm getting a weird error code when I try to store values from a csv into an sql table in a movie review assignment.
I have already edited my apostrophes and spacing and looked up examples from google to try and resolve my error to no avail. I also ensured that i defined DATABASE_URL properly. Sorry for the long traceback error at the end :P Please note that my csv values are stored in lists in each cell. They are arranged in a single column such as
The Lego Movie;2014;100;tt1490017;7.8
This is my main code
import csv
import sys
import os
from sqlalchemy import Column, ForeignKey, Integer, String
from sqlalchemy import create_engine
from flask import Flask, render_template, request, session
from flask_sqlalchemy import SQLAlchemy
from flask_session import Session
engine = create_engine(os.getenv("DATABASE_URL")) # database engine object from SQLAlchemy that manages connections to the database,# DATABASE_URL is an environment variable that indicates where the database lives
def main():
f = open("movies.csv","r")
reader = csv.reader(f, delimiter=';')
for i, row in enumerate(reader): # loop gives each column a name
if i == 0:
continue
title = row[0]
year = int(row[1])
runtime = int(row[2])
imdbID = row[3]
imdbRating = float(row[4])
engine.execute('INSERT INTO movies("title","year","runtime","imdbID","imdbRating") VALUES ((title), (year), (runtime), (imdbID), (imdbRating))',
{"title": title, "year": year, "runtime": runtime, "imdbID": imdbID, "imdbRating": imdbRating })
engine.commit() # transactions are assumed, so close the transaction finished
if __name__ == "__main__":
main()
SQL code:
CREATE TABLE movies (
"title" SERIAL PRIMARY KEY,
"year" INTEGER NOT NULL,
"runtime" INTEGER NOT NULL,
"imdbID" VARCHAR NOT NULL,
"imdbRating" INTEGER NOT NULL
);
New error code:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/base.py", line 1244, in _execute_context
cursor, statement, parameters, context
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/default.py", line 550, in do_execute
cursor.execute(statement, parameters)
psycopg2.errors.UndefinedColumn: column "title" does not exist
LINE 1: ...,"year","runtime","imdbID","imdbRating") VALUES ((title), (y...
^
HINT: There is a column named "title" in table "movies", but it cannot be re
ferenced from this part of the query.
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "import.py", line 26, in <module>
main()
File "import.py", line 23, in main
{"title": title, "year": year, "runtime": runtime, "imdbID": imdbID, "imd
bRating": imdbRating })
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/base.py", line 2166, in execute
return connection.execute(statement, *multiparams, **params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/base.py", line 982, in execute
return self._execute_text(object_, multiparams, params)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/base.py", line 1155, in _execute_text
parameters,
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/base.py", line 1248, in _execute_context
e, statement, parameters, cursor, context
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/base.py", line 1466, in _handle_dbapi_exception
util.raise_from_cause(sqlalchemy_exception, exc_info)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/util/compat.py", line 383, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/util/compat.py", line 128, in reraise
raise value.with_traceback(tb)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/base.py", line 1244, in _execute_context
cursor, statement, parameters, context
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-
packages/sqlalchemy/engine/default.py", line 550, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.ProgrammingError: (psycopg2.errors.UndefinedColumn) column "ti
tle" does not exist
LINE 1: ...,"year","runtime","imdbID","imdbRating") VALUES ((title), (y...
^
HINT: There is a column named "title" in table "movies", but it cannot be re
ferenced from this part of the query.
[SQL: INSERT INTO movies("title","year","runtime","imdbID","imdbRating") VALU
ES ((title), (year), (runtime), (imdbID), (imdbRating))]
[parameters: {'title': 'Title', 'year': 'Year', 'runtime': 'Runtime', 'imdbID
': 'imdbID', 'imdbRating': 'imdbRating\n'}]
(Background on this error at: http://sqlalche.me/e/f405)
To view this discussion on the web visit https://groups.google.com/d/msgid/sqlalchemy/CAFHwexdP97yyBy2N7JZTsjyM9SVMVV5_NtpMq%2BvMUnt21sbfGg%40mail.gmail.com.