Converting GUI-application into .exe-file with cx_Freeze: no plugin found for toolkit qt4

问题

My program contains mayavi, traits and pyqt5 elements in order to visualize something in 3D. I tried to convert my GUI-Application with cx_Freeze and it created the exe-file ,but running it I got the error:

no traitsui.toolkits plugin found for toolkit qt4

After some google and stackoverflow research I figured out that it might has something to do with my environment: see creating standalone exe using pyinstaller with mayavi import

According to the suggestions in further google research I added these lines to the top of my code:

import imp
try:
    imp.find_module('pyside') # test if PySide if available
except ImportError:
    os.environ['QT_API'] = 'pyqt' # signal to pyface that PyQt4 should be used

Following the discussing in the stackoverflow-thread I end up with downloading "Jannick"'s executable. Than I removed the line in my code which is responsible for adding the mayavi scene to the GUI (for testing purposes):

    self.ui = Visualization().edit_traits(parent=self,
                                           kind='subpanel').control

Visualization() is the class where I do the actual visualization with mayavi... Then I executed cx_Freeze, my setup.py is:

import sys
import os
os.environ['TCL_LIBRARY'] = "C:\\Users\\Albo\Anaconda3\\tcl\\tcl8.6"
os.environ['TK_LIBRARY'] = "C:\\Users\\Albo\Anaconda3\\tcl\\tk8.6"
from cx_Freeze import setup, Executable
import cx_Freeze.hooks

build_exe_options = {"packages": ['pygments.lexers', 'tvtk.pyface.ui.qt4','pkg_resources._vendor',
                    'mayavi', 'traits', 'traitsui', 'sip',
                    'traitlets','tvtk.vtk_module','traits.api','traitsui.api','os','gui','gui.gui_mayavi', 'tvtk.vtk_module',
                                  'pyface.qt','pyface.qt.QtGui','pyface.qt.QtCore','numpy'],
                     "includes":['gui','gui.gui_mayavi','mayavi','PyQt5'],
                    }


executables = [
    Executable('main.py', targetName='main.exe',base = 'Win32GUI',)
]

setup(name='main',
      version='1.0',
      description='',
      executables=executables,
      options={"build_exe":build_exe_options},
      )

Now I had a new error, which is:

RuntimeError: No pyface.toolkits plugin found for toolkit qt4

Now something strange happened... I copied from "Jannick"s project the pyface folder and replaced in in my build (which has been created from cx_Freeze). My exe-file was running without any problems! I was very happy and I thought okay I just add the line which is for the visualization again and then I copy again the pyface folder and it will run. But now I get an error again which I cannot understand at all:

  File "C:\Users\xxx\Desktop\xxx\xxx\xxx.py", line 300, in initUI
    rightlayout.addWidget(self.ui)
TypeError: addWidget(self, QWidget, stretch: int = 0, alignment: Union[Qt.Alignment, Qt.AlignmentFlag] = Qt.Alignment()): argument 1 has unexpected type 'PySide.QtGui.QWidget'

I also realized that I cannot run the script from console but from spyder it's no problem. I think it has still something to do with the environment because if I remove the lines at the top of the code, it works again...

来源：https://stackoverflow.com/questions/52775664/converting-gui-application-into-exe-file-with-cx-freeze-no-plugin-found-for-to

标签

python

traits

cx-freeze

mayavi