On Mon, 17 Nov 2008 18:35:04 -0800, Craig Allen wrote: >> >> * Do all objects have values? (Ignore the Python >> >> docs if necessary.) >> >> > If one allows null values, I am current thinking yes. >> >> I don't see a difference between a "null value" and not having a value. >> >> > I think the difference is concrete... an uninitialized variable in C has > no value, I'd say, because the value it will have is indeterminate, it > will be whatever happens to be sitting at that location in memory, > inconsistent. If that variable is initialized to some value > representing "none", like NULL, then it has a consistent value of > "none". There is no way to have an uninitialized variable in python, so > they are always consistently set, so they always have values. > > ?
Well said. I'd even go so far as to say that an uninitialized variable in C has a random value, unless the compiler prevents you from accessing it. If the compiler lets you (accidentally, I assume!) do something with an uninitialized variable, then you're accessing whatever random value it happens to get. -- Steven -- http://mail.python.org/mailman/listinfo/python-list