This is a dependency test folder.

The script t1.py has its dependency index file which describes the reload directive and one dependency on t2.py:

/reload import importlib;import $basename$;importlib.reload($basename$)
t2.py

OTOH, t2.py has a relative dependency on t3.py (in the same folder) and on subdir/t4.py in a sub-folder:

t3.py
subdir/t4.py

The script t4.py has a single relative dependency in its index file:

t5.py

If you activate t1.py from QScripts in IDA, then changing any of the files or their dependency files, then the changed dependencies will be reloaded (using the reload syntax) and the active script is executed again.