Hi,
How can I check if the element has an id attribute? or any attribute ?

I am trying to write an extension. 

i progress finding id attribute of element. For example group elements

But some group elements haven't got any id or etc attribute.

So i'm taking errors

to fix it example code i tried

try:

   for myObject in Objects

       if (myObject.attrib['id'] !=None)

                 do it

except:

    errormsg(" i kill you.! You are a dead man ")

but it doesn't work and i keep getting the same message i kill you.!  You are a dead man, I kill you.! You are a dead man

really not funny 

please, can you save me from this message ?

i think i solve this problem

my computer anymore don'T kill me

if you encounter the same problem

you can try below code

if "id" not in myObjectList.attrib:
      do it..

Thanks...

For checking attributes exist - generally would just use:

https://docs.python.org/3/library/functions.html#hasattr

or you can use try / except

then if exists - get_id() 

or set_id() if does not

To get an id in general it would be my_object.get_id()

Inkscape gui will always assign an id when opening a file from the menu or passing a file to the extension system.

If you create an object without an id in the extension system - get_id() will usually assign a random id - but I would always assign it manually having checked with hasattr

I see thank you inklinea.

I will use the information you provided to prepare new extensions.