sqlite3.OperationalError: near "Transaction": syntax error

I have a projekt where i want to create an webapp. I want to make some calls to the sqllite db but run into the same error over and over.

This is the db code.

class Transaction(db.Model):
__tablename__ = 'Transaction'

transactionID   = db.Column(db.Integer, primary_key=True)
sellerID        = db.Column(db.Integer)
buyerID         = db.Column(db.Integer)
propertyID      = db.Column(db.Integer)
anzahlTokens    = db.Column(db.Integer)
preisToken      = db.Column(db.Float)
datum           = db.Column(db.DateTime)

class Besitz(db.Model): 
    __tablename__ = 'Besitz'
    besitzID        = db.Column(db.Integer, primary_key=True)
    userID          = db.Column(db.Integer)
    propertyID      = db.Column(db.Integer)
    anzahlToken     = db.Column(db.Integer)
    transactionID   = db.Column(db.Integer)

BASE_DIR = os.path.dirname(os.path.abspath(__file__))
        db_path = os.path.join(BASE_DIR, "chaindomain.db")
    con = sqlite3.connect(db_path)
    cursor=con.cursor()

    #besitz aus session hier eine form triggern
    offerID = 1 #aus get
    besitzID =1 #auch

    besitzID        = 1
    userID          = 1
    propertyID      = 1
    anzahlToken     = 1
    transactionID   = 1

#transaction

transactionID   = 1
sellerID        = 2
buyerID         = 1
propertyID      = 1
anzahlTokens    = 1
preisToken      = 1
datum           =   str(date.today())

sql = "INSERT INTO Besitz (userID,propertyID,anzahlToken,transactionID) VALUES (?,?,?,?)"

cursor.execute(sql,
            (userID,propertyID,anzahlToken,transactionID,))

con.commit  
con.close()   

BASE_DIR = os.path.dirname(os.path.abspath(__file__))
db_path = os.path.join(BASE_DIR, "chaindomain.db")
con = sqlite3.connect(db_path)
cursor=con.cursor()



sql_1 = "INSERT INTO Transaction(sellerID,buyerID,propertyID,anzahlToken,preisToken,datum) VALUES (?,?,?,?,?,?)"

cursor.execute(sql_1,
            (sellerID,buyerID,propertyID,anzahlToken,preisToken,datum))

con.commit   

this is the code i try to execute
i dont understand why i only run into an error in the second qeuery.

How can i change my code to make it work?
The program stops at transaction in sql_1

many thanks in advance.

>Solution :

Transaction is a SQLite reserved keyword and can not be used as a table name, unless you quote it :

sql_1 = 'INSERT INTO "Transaction"(sellerID,buyerID,propertyID,anzahlToken,preisToken,datum) VALUES (?,?,?,?,?,?)'