Environment variable PYSIDE_DESIGNER_PLUGINS is not set, bailing out

shepard127

I created a small * .ui file in 'pyside6-designer' then run it through QUiLoader (Loading it directly).
I ran the sample code from the site (https://doc-snapshots.qt.io/qtforpython-dev/tutorials/basictutorial/uifiles.html).

After running the main.py file, I get messages to the console:

qt.pysideplugin: Environment variable PYSIDE_DESIGNER_PLUGINS is not set, bailing out.
qt.pysideplugin: No instance of QPyDesignerCustomWidgetCollection was found.

And after that my code works fine, but I don't know how to disable these messages?

I read this post:
https://stackoverflow.com/questions/68528717/environment-variable-pyside-designer-plugins-is-not-set-bailing-out

And this one:
https://doc-snapshots.qt.io/qtforpython-dev/tutorials/basictutorial/uifiles.html#custom-widgets-in-qt-designer

And this:
https://www.qt.io/blog/qt-for-python-6.1

I still can't understand. Please help me

My code 'main.py' file:

import sys
from PySide6.QtUiTools import QUiLoader
from PySide6.QtWidgets import QApplication
from PySide6.QtCore import QFile, QIODevice

if __name__ == "__main__":
    app = QApplication(sys.argv)

    ui_file_name = "qtable.ui"
    ui_file = QFile(ui_file_name)
    if not ui_file.open(QIODevice.ReadOnly):
        print(f"Cannot open {ui_file_name}: {ui_file.errorString()}")
        sys.exit(-1)
    loader = QUiLoader()
    window = loader.load(ui_file)
    ui_file.close()
    
    if not window:
        print(loader.errorString())
        sys.exit(-1)
    window.show()

    sys.exit(app.exec())

My 'qtable.ui' file:

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>658</width>
    <height>476</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QTableWidget" name="tableWidget">
    <property name="geometry">
     <rect>
      <x>30</x>
      <y>40</y>
      <width>611</width>
      <height>192</height>
     </rect>
    </property>
   </widget>
   <widget class="QPushButton" name="pushButton">
    <property name="geometry">
     <rect>
      <x>60</x>
      <y>260</y>
      <width>75</width>
      <height>24</height>
     </rect>
    </property>
    <property name="text">
     <string>PushButton</string>
    </property>
   </widget>
   <widget class="QPushButton" name="pushButton_2">
    <property name="geometry">
     <rect>
      <x>190</x>
      <y>260</y>
      <width>75</width>
      <height>24</height>
     </rect>
    </property>
    <property name="text">
     <string>PushButton</string>
    </property>
   </widget>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>658</width>
     <height>22</height>
    </rect>
   </property>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
 </widget>
 <resources/>
 <connections/>
</ui>

I also looked at your example from this link: https://code.qt.io/cgit/pyside/pyside-setup.git/tree/examples/widgetbinding

I didn't find *.ui file here. Only some xml code in the 'registerwigglywidget.py' file. I don't understand. I need to create *.ui file, then copy the xml content to registerX.py every time (if changed)?

abir

@shepard127 setting variable 'PYSIDE_DESIGNER_PLUGINS' can resolve this message.

For example, you can set "." for the current folder.

os.environ['PYSIDE_DESIGNER_PLUGINS'] = "."

friedemannkleint

We made a change to silence the warning; it is only relevant for Qt Designer ( https://codereview.qt-project.org/c/pyside/pyside-setup/+/494171 ).