In that case I guess your "row" list only has 1 element. Try putting "print(i, row)" before the "title = row[0]" line.
On Thu, Jun 13, 2019 at 2:21 PM Cravan <cravan...@gmail.com> wrote: > > Hi, > I got the same error even after adding that. > ######################### > Traceback (most recent call last): > File "import.py", line 30, in <module> > main() > File "import.py", line 22, in main > year = int(row[1]) > IndexError: list index out of range > Thanks, > Cravan > On 13/6/19, 8:53 PM, "Simon King" <sqlalchemy@googlegroups.com on behalf of > si...@simonking.org.uk> wrote: > > You have an empty row in your CSV file (maybe a blank line at the end?). > > Try adding this at the beginning of your loop: > > if not row: > continue > > On Thu, Jun 13, 2019 at 1:26 PM Cravan <cravan...@gmail.com> wrote: > > > > Thanks Simon, I got a new error this time: > > ##################### > > Traceback (most recent call last): > > File "import.py", line 28, in <module> > > main() > > File "import.py", line 20, in main > > year = int(row[1]) > > IndexError: list index out of range > > > > Thanks, > > Cravan > > > > On 13/6/19, 8:19 PM, "Simon King" <sqlalchemy@googlegroups.com on > behalf of si...@simonking.org.uk> wrote: > > > > It's worth pointing out that your first and last errors are database > > errors from postgresql, whereas the middle syntax error was a Python > > error. > > > > In Python, single and double-quotes are interchangeable, and you can > > use whichever is more convenient for you. This is not true for > > postgresql. In PG, single quotes are used for strings, and > > double-quotes are used for identifiers that you want to be treated > > literally (eg. because they contain characters that aren't normally > > allowed in identifiers, or because you want them to be > > case-sensitive). > > > > So in this case, you need imdbID and imdbRating to be surrounded by > > double-quotes because you want them to be handled as case-sensitive. > > The easiest thing to do is to change the quotes around the whole SQL > > statement to be single quotes. > > > > ie. > > > > sqlalchemy.text('INSERT INTO movies(title, year, runtime, "imdbID", > > "imdbRating") VALUES(...)') > > > > Simon > > > > On Thu, Jun 13, 2019 at 12:40 PM Cravan <cravan...@gmail.com> wrote: > > > > > > Alright, thanks because I created my sql column names with > imdbID, which contains caps. > > > However, after changing it to single-quotes, I got a syntax error. > > > ################################### > > > 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_conte > > > xt > > > 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.SyntaxError: syntax error at or near "'imdbID'" > > > LINE 1: INSERT INTO movies(title, year, runtime, 'imdbID', > 'imdbRati... > > > ^ > > > > > > > > > The above exception was the direct cause of the following > exception: > > > Traceback (most recent call last): > > > File "import.py", line 28, in <module> > > > main() > > > File "import.py", line 25, in main > > > engine.execute(insert_statement, title=title, year=year, > runtime=ru > > > ntime, imdbID=imdbID, imdbRating=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 988, in execute > > > return meth(self, multiparams, params) > > > File > "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7 > > > /site-packages/sqlalchemy/sql/elements.py", line 287, in > _execute_on_co > > > nnection > > > return connection._execute_clauseelement(self, multiparams, > params) > > > File > "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7 > > > /site-packages/sqlalchemy/engine/base.py", line 1107, in > _execute_claus > > > eelement > > > distilled_params, > > > File > "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7 > > > /site-packages/sqlalchemy/engine/base.py", line 1248, in > _execute_conte > > > xt > > > 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_caus > > > e > > > 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_conte > > > xt > > > 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.SyntaxError) > syntax e > > > rror at or near "'imdbID'" > > > LINE 1: INSERT INTO movies(title, year, runtime, 'imdbID', > 'imdbRati... > > > [SQL: INSERT INTO movies(title, year, runtime, 'imdbID', > 'imdbRating') > > > VALUES (%(title)s, %(year)s, %(runtime)s, %(imdbID)s, > %(imdbRating)s)] > > > [parameters: {'title': 'The Lego Movie', 'year': 2014, 'runtime': > 100, > > > 'imdbID': 'tt1490017', 'imdbRating': 7.8}] > > > (Background on this error at: http://sqlalche.me/e/f405) > > > Thanks, > > > Cravan > > > > > > > > > > > > On 13/6/19, 7:36 PM, "Simon King" <sqlalchemy@googlegroups.com > on behalf of si...@simonking.org.uk> wrote: > > > > > > You've got double-quotes around "imdbID" and "imdbRating" on > that > > > line, and double-quotes around the SQL statement, which is a > syntax > > > error. I think you should be able to just remove the quotes > around the > > > column names, but if you really need them for some reason, > replace the > > > outer double-quotes with single-quotes. > > > > > > Simon > > > > > > On Thu, Jun 13, 2019 at 12:20 PM Cravan <cravan...@gmail.com> > wrote: > > > > > > > > I got a new error after using Simon's suggestion, would > someone help me? > > > > ###################################### > > > > File "import.py", line 24 > > > > insert_statement = sqlalchemy.text("INSERT INTO > movies(title, year, > > > > runtime, "imdbID", "imdbRating") VALUES (:title, :year, > :runtime, :imd > > > > bID, :imdbRating)") > > > > > > > > ^ > > > > SyntaxError: invalid syntax > > > > Thanks, > > > > Cravan > > > > On 13/6/19, 7:10 PM, "Simon King" > <sqlalchemy@googlegroups.com on behalf of si...@simonking.org.uk> wrote: > > > > > > > > Your "engine.execute" statement looks wrong to me: > > > > > > > > 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 }) > > > > > > > > In particular, the VALUES clause is wrong. That's not > the way that you > > > > specify parameters when executing a parametrized query, > so the > > > > database is interpreting "(title)" as a reference to a > column, rather > > > > than a reference to a parameter. > > > > > > > > You're probably best off using SQLAlchemy's text() > construct: > > > > > > > > > https://docs.sqlalchemy.org/en/13/core/tutorial.html#using-textual-sql > > > > > > > > You would put this outside the loop: > > > > > > > > insert_statement = sqlalchemy.text( > > > > "INSERT INTO movies(title, year, runtime, imdbID, > imdbRating) > > > > VALUES (:title, :year, :runtime, :imdbID, :imdbRating)" > > > > ) > > > > > > > > and then inside the loop you would use: > > > > > > > > engine.execute(insert_statement, title=title, year=year, > > > > runtime=runtime, imdbID=imdbID, imdbRating=imdbRating) > > > > > > > > Also, I suspect (but haven't verified) that > "engine.execute()" will > > > > check out a connection from the pool, run the > statement, and commit a > > > > transaction. If you want to import all the rows in a > single > > > > transaction, you should probably explicitly create a > connection at the > > > > beginning, use "connection.execute()" to run your SQL, > and commit it > > > > at the end. See > > > > > https://docs.sqlalchemy.org/en/13/core/connections.html#using-transactions > > > > for examples. > > > > > > > > Hope that helps, > > > > > > > > Simon > > > > > > > > > > > > On Thu, Jun 13, 2019 at 11:15 AM Cravan > <cravan...@gmail.com> wrote: > > > > > > > > > > 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) > > > > > > > > > > -- > > > > > SQLAlchemy - > > > > > The Python SQL Toolkit and Object Relational Mapper > > > > > > > > > > http://www.sqlalchemy.org/ > > > > > > > > > > To post example code, please provide an MCVE: > Minimal, Complete, and Verifiable Example. 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See http://stackoverflow.com/help/mcve for a full > description. > > --- > > You received this message because you are subscribed to the Google > Groups "sqlalchemy" group. > > To unsubscribe from this group and stop receiving emails from it, > send an email to sqlalchemy+unsubscr...@googlegroups.com. > > To post to this group, send email to sqlalchemy@googlegroups.com. > > Visit this group at https://groups.google.com/group/sqlalchemy. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/CAFHwexeK05VEPLk1cLH2iq0tSzpunWViNd2DRCDLZdQi_H85xA%40mail.gmail.com. > > For more options, visit https://groups.google.com/d/optout. > > > > > > -- > > SQLAlchemy - > > The Python SQL Toolkit and Object Relational Mapper > > > > http://www.sqlalchemy.org/ > > > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > > --- > > You received this message because you are subscribed to the Google > Groups "sqlalchemy" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to sqlalchemy+unsubscr...@googlegroups.com. > > To post to this group, send email to sqlalchemy@googlegroups.com. > > Visit this group at https://groups.google.com/group/sqlalchemy. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/ECE19F5A-993C-4063-957F-C198A1591A13%40gmail.com. > > For more options, visit https://groups.google.com/d/optout. > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at https://groups.google.com/group/sqlalchemy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/CAFHwexeAZ4SYJGD_zmh0NV97RtMER1Cq5Cr7FM%3D-5TeAAX1_vQ%40mail.gmail.com. > For more options, visit https://groups.google.com/d/optout. > > > -- > SQLAlchemy - > The Python SQL Toolkit and Object Relational Mapper > > http://www.sqlalchemy.org/ > > To post example code, please provide an MCVE: Minimal, Complete, and > Verifiable Example. See http://stackoverflow.com/help/mcve for a full > description. > --- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sqlalchemy+unsubscr...@googlegroups.com. > To post to this group, send email to sqlalchemy@googlegroups.com. > Visit this group at https://groups.google.com/group/sqlalchemy. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sqlalchemy/A8B78051-BE1B-4D1B-BEAB-01F595138DE3%40gmail.com. > For more options, visit https://groups.google.com/d/optout. -- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. 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