Improve handling of console window in windowed apps

Suppresses console window flicker for PyInstaller windowed applications by redirecting stdout and stderr in main.py. Updates logging setup to avoid console output in windowed mode and adds fallback error logging. Suppresses pkg_resources deprecation warnings to further reduce unwanted console output.

main.py

@@ -1,4 +1,14 @@
 import sys
+import os
+
+# Suppress console window for windowed applications (PyInstaller --windowed)
+if getattr(sys, 'frozen', False):
+    # Running as compiled executable
+    if sys.stdout is None or sys.stderr is None:
+        # Windowed mode - redirect stdout/stderr to prevent console window flicker
+        import io
+        sys.stdout = io.StringIO()
+        sys.stderr = io.StringIO()
 
 from PySide6.QtWidgets import QApplication, QMessageBox
 

src/core/ytsage_logging.py

@@ -94,9 +94,12 @@ def setup_logging():
 
     # Console handler - INFO and above, with colors
     # Check if stdout is available (it might be None in PyInstaller windowed apps)
+    # Also check if we're running in a windowed mode (likely PyInstaller --windowed)
     stdout_available = sys.stdout is not None
+    is_windowed_app = getattr(sys, 'frozen', False) and sys.stdout is None
     
-    if stdout_available:
+    # Skip console output if we're in a windowed application to prevent brief console window
+    if stdout_available and not is_windowed_app:
         try:
             logger.add(
                 sys.stdout,
@@ -117,13 +120,13 @@ def setup_logging():
             except Exception:
                 stdout_available = False
 
-    # If stdout is not available, try stderr or skip console logging entirely
+    # If stdout is not available or we're in windowed mode, try stderr for critical messages only
-    if not stdout_available:
+    if (not stdout_available or is_windowed_app) and not is_windowed_app:
         try:
             if sys.stderr is not None:
                 logger.add(
                     sys.stderr,
-                    level="WARNING",  # Only warnings and errors to stderr
+                    level="ERROR",  # Only errors to stderr to minimize console window appearance
                     format="{time:YYYY-MM-DD HH:mm:ss} | {level: <8} | {message}",
                     catch=True,
                 )
@@ -159,22 +162,21 @@ def setup_logging():
             # If file logging fails, just log to console
             logger.warning(f"Could not set up file logging: {e}")
 
-    # Log startup message if we have any handlers
+    # Log startup message 
-    if logger._core.handlers:
+    try:
         logger.info("YTSage logging system initialized")
         if log_dir and log_dir.exists():
             logger.debug(f"Log directory: {log_dir}")
         else:
             logger.warning("File logging disabled - could not create log directory")
+    except Exception:
+        # If logging fails, continue silently
+        pass
 
     # If no handlers were successfully added, add a null handler to prevent errors
-    if not logger._core.handlers:
-        # Add a minimal handler that just discards messages
-        # This prevents loguru from complaining about no handlers
-        import tempfile
-
     try:
-            # Try to add a temporary file handler as last resort
+        # Try to add a minimal fallback handler if needed
+        import tempfile
         temp_log = Path(tempfile.gettempdir()) / "ytsage_temp.log"
         logger.add(temp_log, level="ERROR", catch=True)
     except Exception:

src/core/ytsage_utils.py

@@ -4,8 +4,12 @@ import subprocess
 import sys
 import tempfile
 import time
+import warnings
 from pathlib import Path
 
+# Suppress the pkg_resources deprecation warning to prevent console window flicker
+warnings.filterwarnings("ignore", message=".*pkg_resources is deprecated.*", category=UserWarning)
+
 import pkg_resources
 import requests
 from packaging import version