Get an unhandled exception message if I use pynapl to call Dyalog from python in cmd.exe

[dyavc]

using python 3.13 with Dyalog 19.0.52087 64-bit Unicode on Windows 10

in cmd.exe
set PYTHONPATH=d:\git\pynapl

python try1.py
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
[100, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
Exception ignored in: <function Connection.APL.del at 0x000001C93EC9CA40>
Traceback (most recent call last):
File "d:\git\pynapl\pynapl\APLPyConnect.py", line 247, in del
File "d:\git\pynapl\pynapl\APLPyConnect.py", line 234, in stop
OSError: [WinError 6] The handle is invalid

try1.py text:
from pynapl import APL

apl = APL.APL(dyalog=r"C:\Program Files\Dyalog\Dyalog APL-64 19.0 Unicode\dyalog.exe")

apl.eval("a ← ⍳3 3")
print(apl.eval("a ← ⍳16"))
apl.eval("b←100,a")
print(apl.eval("b"))

Please note that I do not see this exception message if I run the python code in Idle or in cygwin with python 3.9.