A non-empty string is truthy, making the the for-loop useless, as the first item in inspect.stack() is always the for-loop itself, which then lead to the function returning immediately.
This commit
* fixes this typo
* changes the loop to ignore the first element of instpect.stack() (which is the loop itself)
* ignores django-internal code
This should create something similar to what I suspect the code was intended to do originally.
