Plugin PyQt5 and PyQt6 compatible & CenRa_Copie bug fix

CenRa_POSTGIS/CenRa_Postgis.py

@@ -28,7 +28,10 @@ from .postgis_creator import Postgis_Creator
 from .postgis_rename import Postgis_Rename
 from .about_form import AboutDialog
 
-from PyQt5.QtCore import *
+try:
+    from PyQt5.QtCore import *
+except:
+    from PyQt6.QtCore import *
 
 IPAddr=socket.gethostbyname(socket.gethostname())
 
@@ -119,7 +122,7 @@ class PgPostgis:
         About dialog
         """
         dialog = AboutDialog(iface)
-        dialog.exec_()
+        dialog.exec()
     def open_help():
         """ Open the online help. """
         QDesktopServices.openUrl(QUrl('https://plateformesig.cenra-outils.org/'))