"anton muhin" wrote:Or dict((key, row[key]) for key in cols).
I'm on Py 2.3.3, and neither of these appear to work.
You're probably getting the error shown. Try the change in the line following it instead.
Python 2.3.4 (#53, May 25 2004, 21:17:02) [MSC v.1200 32 bit (Intel)]
>>> row = {'fname': 'Frank', 'lname': 'Jones', 'city': 'Hoboken', 'state': 'Alaska'}
>>> cols = ['city', 'state']
>>> dict((key, row[key]) for key in cols)
File "<stdin>", line 1
dict((key, row[key]) for key in cols)
^
SyntaxError: invalid syntax
>>> dict([(key, row[key]) for key in cols])
{'city': 'Hoboken', 'state': 'Alaska'}
I can't see anything in the 2.4 release notes that point to where this would have changed.
See http://www.python.org/2.4/highlights.html and search for "generator expressions".
-Peter -- http://mail.python.org/mailman/listinfo/python-list
