On Aug 22, 8:50 pm, maestro <[EMAIL PROTECTED]> wrote:
> Why are these functions there? Is it somehow more idiomatic to use
> than to do obj.field ?
> Is there something you can with them that you can't by obj.field
> reference?
You can generate them dynamically from strings. In some cases you
don't know until runtime what attributes you want to pull:
def show_insides(obj):
for attr in dir(obj):
print "Attribute %r: %r" % (attr, getattr(obj, attr))
class hello(object):
a = 1
b = 2
class goodbye(object):
c = 1
d = 500
print show_insides(hello)
(...15 builtins...)
Attribute 'a': 1
Attribute 'b': 2
print show_insides(goodbye)
(...15 builtins...)
Attribute 'c': 1
Attribute 'd': 500
In this case, you can see that we pull the attributes of an object
using dir(), which yields a list of strings, then pull each attribute
we discover.
--
http://mail.python.org/mailman/listinfo/python-list
