# Do this instead
t = (symbol,)
-c.execute('select * from stocks where symbol=?', ('IBM',))
+c.execute('select * from stocks where symbol=?', t)
# Larger example
for t in (('2006-03-28', 'BUY', 'IBM', 1000, 45.00),
The author would like to thank the following people for offering
suggestions, corrections and assistance with various drafts of this
article: Phillip J. Eby, Kent Johnson, Martin von~L\"owis, Gustavo
-Niemeyer, Mike Rovner, Thomas Wouters.
+Niemeyer, James Pryor, Mike Rovner, Thomas Wouters.
\end{document}