I think I know now where my problems come from. I spare you boring
implementation code.
The case look like this: I parse xml file something a like
<X id="0">
<a>1 <\a>
<a> 2 <\a>
<X id="1">
<a>3 <\a>
<b> 4<\b>
<\X>
</X>
<X id="2">
<a> <\a>
<a> <\a>
<X id="3">
<a> <\a>
<b> <\b>
<\X>
</X>
I succesfully constructlop-level X objects - I see all components when i
print X0, X1 out with _repr_.
I store my X's in memory. I had some problems with this. I googled, red
newsgoup ad foud a solution that seemd to be perfect for me (...till now).
In the parser- Y class a have a dictionary
def __init__
self.mem={}
I googled a way how to add elements to dict, I have read the code not the
description below
##copied from http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/66516
def addItem(self,word,pagenumber):
self.mem.setdefault(word,[]).append(pagenumber)
^^^^^^^^
So my dict looks like{
(id of top-level X) 0 : (the X itself) X0,
2 : X2,
4..........
}
I wrote it some time and I was tired I haven't pay attention to the
breackets at he beginning of outprint
TOP LEVEL X WITH ID=0
[<class X> <----
<a>1<\a>
<a>2<\a>
<class X>
<a >3<\a>
<a> 4<\a>
<\class X>
<\class X>]
One can clearly see it's a list :( Shame on me.
I did a trick. If my X object is stored in a list and it's the only element
of the list I can simply use it like:
print v[0]
print" isinstance(x,X)"
print isinstance(v[0],X)
print "type(x) is X"
print type(v[0]) is X
print v[0].__class__
print v[0].__class__.__name__
and results
<class X> <----no [!!!!
<a>1<\a>
<a>2<\a>
<class X>
<a >3<\a>
<a> 4<\a>
<\class X>
<\class X>
isinstance(x,X)
True :-)
type(x) is X
False :( ??
__main__.X
X
temporarily it solves my probblems I'm just curious why type can't handle
the test.
Thank you for help, and making me think :-)
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