From 186ff6b409fdca4ef4080b7bed8e3580ed2f9ac9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Parodi=2C=20Eugenio=20=F0=9F=8C=B6?=
 <ceccopierangiolieugenio@googlemail.com>
Date: Thu, 30 Oct 2025 15:42:51 +0000
Subject: [PATCH] chore: use TextIOBase for the stderr handler

---
 libs/pyTermTk/TermTk/TTkCore/ttk.py           |  6 ++-
 tests/t.generic/test.generic.010.daemon.01.py | 10 +++--
 tests/t.ui/test.ui.035.error.handling.py      | 38 ++++++++++++++-----
 3 files changed, 39 insertions(+), 15 deletions(-)

diff --git a/libs/pyTermTk/TermTk/TTkCore/ttk.py b/libs/pyTermTk/TermTk/TTkCore/ttk.py
index 5d450d25..8aaee1f3 100644
--- a/libs/pyTermTk/TermTk/TTkCore/ttk.py
+++ b/libs/pyTermTk/TermTk/TTkCore/ttk.py
@@ -23,13 +23,15 @@
 __all__ = ['TTk']
 
 import os
+import io
 import signal
 import time
+import queue
 import threading
 import platform
 import contextlib
 
-from typing import Optional, Callable, TextIO, List
+from typing import Optional, Callable, List
 
 from TermTk.TTkCore.drivers import TTkSignalDriver
 from TermTk.TTkCore.TTkTerm.input import TTkInput
@@ -49,7 +51,7 @@ from TermTk.TTkWidgets.widget import TTkWidget
 from TermTk.TTkWidgets.container import TTkContainer
 
 
-class _TTkStderrHandler(TextIO):
+class _TTkStderrHandler(io.TextIOBase):
     def write(self, text):
         TTkLog.error(text)
         return len(text)
diff --git a/tests/t.generic/test.generic.010.daemon.01.py b/tests/t.generic/test.generic.010.daemon.01.py
index 928a50b8..5b28dc0a 100755
--- a/tests/t.generic/test.generic.010.daemon.01.py
+++ b/tests/t.generic/test.generic.010.daemon.01.py
@@ -31,12 +31,14 @@ def task():
         print(f"{i=}",flush=True)
         time.sleep(0.1)
 
-process = multiprocessing.Process(target=task, daemon=True)
-process.start()
 
-time.sleep(10)
+if __name__ == '__main__':
+    process = multiprocessing.Process(target=task, daemon=True)
+    process.start()
 
-print(f"Main Process exit...")
+    time.sleep(10)
+
+    print(f"Main Process exit...")
 
 
 
diff --git a/tests/t.ui/test.ui.035.error.handling.py b/tests/t.ui/test.ui.035.error.handling.py
index adea5a23..ac97f7f1 100755
--- a/tests/t.ui/test.ui.035.error.handling.py
+++ b/tests/t.ui/test.ui.035.error.handling.py
@@ -23,6 +23,8 @@
 
 import sys, os
 import threading
+import multiprocessing
+import time
 
 sys.path.append(os.path.join(sys.path[0],'../../libs/pyTermTk'))
 import TermTk as ttk
@@ -43,28 +45,46 @@ class Fail(ttk.TTkWidget):
         if Fail.fail_state:
             raise Exception('Fail FAIL!!!')
         canvas.fill(color=ttk.TTkColor.BG_RED)
-        canvas.drawText(text='X', pos=(2,1))
+        canvas.drawText(text='💀 Draw', pos=(2,1))
+
+def _multiprocess_task():
+    process = multiprocessing.current_process()
+    print(f"Task: {process.daemon=}", file=sys.stderr)
+    for i in range(100):
+        ttk.TTkLog.warn(f"{i=}")
+        print(f"{i=}",flush=True, file=sys.stderr)
+        time.sleep(0.3)
 
 timer = ttk.TTkTimer()
 timer.timeout.connect(_raise)
 
+context = multiprocessing.get_context(method="spawn")
+ctx = context.Process(target=_multiprocess_task, daemon=True)
+
 root = ttk.TTk()
 
 # simulate error
 
 # Fail in the main Thread
-ttk.TTkButton(parent=root,text=' X ',border=True).clicked.connect(_raise)
+ttk.TTkButton(parent=root,pos=(0,0),text='💀 Main',border=True).clicked.connect(_raise)
 # Fail in the draw Thread
-Fail(parent=root,pos=(0,3), size=(5,3))
+Fail(parent=root,pos=(9,0), size=(10,3))
 # Generic Failure on a generic thread
-ttk.TTkButton(parent=root,pos=(0,6),text=' X ',border=True).clicked.connect(lambda:threading.Thread(target=_raise).start())
+ttk.TTkButton(parent=root,pos=(19,0),text='💀 a Thread',border=True).clicked.connect(lambda:threading.Thread(target=_raise).start())
 # Generic Failure on a TTkTimer
-ttk.TTkButton(parent=root,pos=(0,9),text=' X ',border=True).clicked.connect(lambda:timer.start())
+ttk.TTkButton(parent=root,pos=(32,0),text='💀 a TTkTimer',border=True).clicked.connect(lambda:timer.start())
 
 # Generic Quit
-ttk.TTkButton(parent=root,pos=(0,13),text=' X ',border=True).clicked.connect(root.quit)
-ttk.TTkButton(parent=root,pos=(0,16),text=' X ',border=True).clicked.connect(ttk.TTkHelper.quit)
+ttk.TTkButton(parent=root,pos=(50,0),text='root.Quit',border=True).clicked.connect(root.quit)
+ttk.TTkButton(parent=root,pos=(61,0),text='helper.Quit',border=True).clicked.connect(ttk.TTkHelper.quit)
 
-win=ttk.TTkWindow(parent=root, pos=(5,0), size=(100,30), border=True, layout=ttk.TTkGridLayout())
+# Test Multiprocessing
+ttk.TTkButton(parent=root,pos=(75,0),text='multiprocess',border=True).clicked.connect(ctx.start)
+
+win=ttk.TTkWindow(parent=root, pos=(0,3), size=(100,30), border=True, layout=ttk.TTkGridLayout())
 ttk.TTkLogViewer(parent=win)
-root.mainloop()
\ No newline at end of file
+
+if __name__ == '__main__':
+    root.mainloop()
+    if ctx.is_alive():
+        ctx.join()