Live script section breaks removes import

7 views (last 30 days)
In a live script notebook, i f i import a package and add a section break, the import is removed. Is it intended to work that way?
Example:
import casadi.*
***add a section break here ***
x = SX.sym('x');
if i run the first section and then the second one, the first time it works without any issues; but if i try to add to the second section:
x = SX.sym('x');
y = SX.sym('y');
it prduces the error "Unable to solve the name SX.sym" and if i type "import" in the command window it shows the casadi package has been somehow removed, focing me to always rerun the import section

Accepted Answer

Arthi Sathyamurthi
Arthi Sathyamurthi on 25 Oct 2021
Edited: Arthi Sathyamurthi on 25 Oct 2021
The import function adds package, class, or functions to the current import list. The import list scope for a script is the entire script body. The imports in a script are available only in the script body and are not available in the scopes which call the script. Hence executing a script/live script with a particular set of code/sections, allows only that code/sections to have access to that import list scope. And any new modifications/ addition of new sections is not available in the scopes which call the script and gives an error.
You can know more about the scopes of the import function in the link here.
  1 Comment
Eugenio Grabovic
Eugenio Grabovic on 25 Oct 2021
Thank you for the answer, however this feels counterintuitive: if all variables are accessible by any sections of the script, the imports should be as well (imho).

Sign in to comment.

More Answers (0)

Categories

Find more on Live Scripts and Functions in Help Center and File Exchange

Products


Release

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!