Question

def dispcar ( self, reg ):
                print ("The car information for '%s' is: "), (reg)
                numrows = int(self.dbc.rowcount) #get the count of total rows
                self.dbc.execute("select * from car where reg='%s'") %(reg)
                for x in range(0, numrows):
                    car_info = self.dbc.fetchone()
                    print row[0], "-->", row[1]

the above code gives this error:

self.dbc.execute("select * from car where reg='%s' " %(reg)
TypeError: unsupported operand type(s) for %: 'long' and 'str'

can anyone please help me understand why am i getting this error?

FYI: reg is a raw_input var i input from user in the function getitem and pass the reg var as an argument to this function.

Answer 1

I think this line simply has the parens in the wrong place:

self.dbc.execute("select * from car where reg='%s'") %(reg)

You are using % on the result of execute(), and reg.

Change it to:

self.dbc.execute("select * from car where reg='%s'" % reg)

or

self.dbc.execute("select * from car where reg='%s'", reg)

depending on whether it will do the param substitution for you.