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".
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