database questions ala newbie pythonist

[chris]

Hello,
          Just started with python and databases.
I am making a small script to update a local database.
Looked around and couldn't find to many links with info about python with
databases.
Any links or other resources anyone can recommend is appreciated.

My question is in the following small script:

##################################################################
import dbi
import odbc
myconn = odbc.odbc('testpy')
mycursor = myconn.cursor()
mycursor.execute('Update Categories Set DelStatus = 0 Where ProductID =
1190' )
mycursor.close()
myconn.close()
...
###################################################################

This works fine using the literals 0 (For Delstatus) and 1190 (for
ProductID)
But when I try to use a variable such as:

###################################################################
...
varA = '0'
varB = '1190'
mycursor.execute('Update Categories Set DelStatus = ' varA 'Where ProductID
= ' varB)
...
###################################################################

I get errors.  Please excuse my ignorance in what is probably obvious to
most others within this newsgroup.....
What I am trying to do is to update my database from a 2 field .CSV file
I figured I could load the CSV file into a dictionary and parse each row
running a query using the values from varA and VarB from the key value
pairs.
Right now I am just trying to get the database part to work that is why
there is no CSV code.
So I guess what I am asking is how do I pass values through the sql
statement:
###################################################################
...
mycursor.execute('Update Categories Set DelStatus = X1 Where ProductID =
X2' )    # Values replacing X1 and X2.
...
###################################################################
Any help is greatly appreciated.

Chris