How to use Element#setLength from python?

Question

This line of code fails in python: 

currentElement.setLength(1, LENGTH_UNIT_BYTES)

with error 

0x00 PYT 2000 ERROR Python: 'TypeError: in method 'Element_setLength', argument 2 of type 'char const *''

I've tried multiple variants (LENGTH_BYTES, enclosing in quotations, prefixing with synalysis. as done in Lua, etc). Cannot get past this error - any help? 

Answer 1

Figured it out. The manual reports the first parameter (the length) is supposed to be of type string. Odd, but easy enough to work around. This works fine: 

currentElement.setLength(str(length), LENGTH_UNIT_BYTES)

Comments

Yes, that appears odd :-) The simple reason for it is that you can pass there the same expression as in the GUI. The expression is automatically tested for variables and if there are none, only the result of the expression is stored.

The variables are resolved at parsing time with the values of the parsing results created so far. -- Searched backwards, you know ;)