[EMAIL PROTECTED] wrote: > John> I'm a little confused. Why doesn't s evaluate to True in the first > John> part, but it does in the second? Is the first statement something > John> different? > > >>> s = 'hello' > >>> s == True > False > >>> if s: > ... print 'hi' > hi > > s is not equal to the boolean object True, but it also doesn't evaluate to > the string class's "nil" value. Each of the builtin types has such an > "empty" or "nil" value: > > string "" > list [] > tuple () > dict {} > int 0 > float 0.0 > complex 0j > set set() > > Any other value besides the above will compare as "not false". >
And today's question for the novices is: which Python type did Skip miss from the above list? regards Steve -- Steve Holden +44 150 684 7255 +1 800 494 3119 Holden Web LLC/Ltd http://www.holdenweb.com Skype: holdenweb http://holdenweb.blogspot.com Recent Ramblings http://del.icio.us/steve.holden -- http://mail.python.org/mailman/listinfo/python-list