On Dec 11, 2008, at 10:52 PM, navneet khanna wrote:
I want to create a structure within a structure i.e. nested
structures in python.
I tried with everything but its not working.
my code is like this:
class L(Structure):
def __init__(self,Name='ND',Addr=0,ds_obj = D()):
Change the default value of ds_obj here to None. Otherwise, you will
certainly confuse yourself (there would be just one default object
shared among all instances).
self.Name = Name
self.Addr = Addr
self.ds_obj = ds_obj
class D(Structure):
def __init__(self,dataName='ND',index = 0,ele_obj=E()):
self.dataName = dataName
self.index = index
self.ele_obj = ele_obj
Same thing here with ele_obj -- have it default to None to save
yourself grief.
Otherwise, these look fine.
these are two structures. I want to refer D structure in L one and
use it. I want to access the value of D structure like L.D.index = 0.
But you didn't name it "D" -- if you have an L object, say "foo", then
you'd get to it's D object as foo.ds_obj (since that's what you named
it in L.__init__). If you then wanted to get to that thing's E
object, it'd be foo.ds_obj.ele_obj.
Best,
- Joe
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