python list in python expression

[vbk!!!]

Hello,

 

I have a node parameter with  a little expression to allow me to get a list of strings.

Now, in another node, I would like to write a new expression returning a specific component of the previously created list.

But I can't get it to work.

ch('myNodePath') : return the list

len(ch('myNodePath')) : return the lengthof the list
ch('myNodePath')[0] : return a bracket instead of the first component

 

Thanks for your help
 

 

[fathom]

my guess is that your list is actually a string that looks like a list.  try putting eval() around it prior to trying to pull the first index.

[fsimerey]

my guess is that your list is actually a string that looks like a list.  try putting eval() around it prior to trying to pull the first index.

My guess too.

 

Are you shure this expresion :

len(ch('myNodePath'))

is returning the correct length of items and not the length of string ?

[vbk!!!]

of course !

your certainly right !

 

Thx