Do not touch the environment variable.

PyMca5/PyMcaGui/PyMcaQt.py

@@ -103,9 +103,10 @@
                     raise ImportError(
                     'No Qt wrapper found. Install PyQt5, PySide6 or PyQt6.')
 
-_logger.info("BINDING set to %s" % BINDING)
+    _logger.info("BINDING set to %s" % BINDING)
 
 if BINDING.lower() == "pyqt5":
+    BINDING = "PyQt5"
     from PyQt5.QtCore import *
     from PyQt5.QtGui import *
     from PyQt5.QtWidgets import *
@@ -127,7 +128,7 @@
     Slot = pyqtSlot
 
 elif BINDING.lower() == "pyside2":
-    # try PySide2 (experimental)
+    BINDING = "PySide2"
     from PySide2.QtCore import *
     from PySide2.QtGui import *
     from PySide2.QtWidgets import *
@@ -195,6 +196,7 @@ class QThread(_ExecMixIn, QThread): pass
                              _platform_plugin_path)
 elif BINDING.lower() == 'pyside6':
     _logger.debug('Using PySide6 bindings')
+    BINDING = "PySide6"
     import PySide6
 
     from PySide6.QtCore import *  # noqa
@@ -236,6 +238,7 @@ def width(self):
 
 elif BINDING.lower() == 'pyqt6':
     _logger.debug('Using PyQt6 bindings')
+    BINDING = "PyQt6"
     import enum
     from PyQt6 import QtCore
     if QtCore.PYQT_VERSION < int("0x60300", 16):
@@ -421,6 +424,8 @@ class QObject(QObject, _Foo): pass
 else:
     raise ImportError('No Qt wrapper found. Install one of PyQt5, PySide6, PyQt6')
 
+_logger.info("PyMcaQt.BINDING set to %s" % BINDING)
+
 # provide a exception handler but not implement it by default
 def exceptionHandler(type_, value, trace):
     _logger.error("%s %s %s", type_, value, ''.join(traceback.format_tb(trace)))

PyMca5/PyMcaGui/misc/QIPythonWidget.py

@@ -32,7 +32,7 @@
 __contact__ = "sole@esrf.fr"
 __license__ = "MIT"
 __copyright__ = "European Synchrotron Radiation Facility, Grenoble, France"
-# Set the QT API
+
 import os
 import sys