CODEWITHSUNDEEP
pythonsqlite
iliaden
iliaden

Reputation: 3889

python sqlite string insertion

I'm trying to insert a string that was received as an argument into a sqlite db using python:

    def addUser(self, name):

            cursor=self.conn.cursor()
            t = (name)
            cursor.execute("INSERT INTO users ( unique_key, name, is_online, translate) VALUES (NULL, ?, 1, 0);", t)
            self.conn.commit()

I don's want to use string concatenation because http://docs.python.org/library/sqlite3.html advises against it.

However, when I run the code, I get the exception 

cursor.execute("INSERT INTO users ( unique_key, name, is_online, translate) VALUES (NULL, ?, 1, 0);", t)
pysqlite2.dbapi2.ProgrammingError: Incorrect number of bindings supplied. The current statement uses 1, and there are 7 supplied

Why is Python splitting the string by characters, and is there a way to prevent it from doing so?

EDIT:

changing to t = (name,) gives the following exception

print "INSERT INTO users ( unique_key, name, is_online, translate) VALUES (NULL, ?, 1, 0)" + t
exceptions.TypeError: cannot concatenate 'str' and 'tuple' objects

Upvotes: 6

Views: 4009

Answers (2)

mdeous
mdeous

Reputation: 18029

Your t variable isn't a tuple, i think it is a 7-length string. To make a tuple, don't forget to put a trailing coma:

t = (name,)

Upvotes: 1

RichieHindle
RichieHindle

Reputation: 281495

You need this:

t = (name,)

to make a single-element tuple.

Remember, it's commas that make a tuple, not brackets!

Upvotes: 8

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