PyQT4 App

[Mitko]

@JonB

I try to upgrade from PyQT4 to 5, but now i have other types of errors, that i don't understand.
Can someone help me ?

[JonB]

@Mitko
I don't think this is actually anything to do with PyQt, or Qt. If you had copied and pasted the text instead of screenshot I could have quoted from it. But I see a Python3.8 json library loader complaining about some character in its JSON input.

[Mitko]

@JonB

The error was, because part one of the files (the json), containing the xbee commands, has Russian in it, so the problem was with UTF-8 encoding, but i fix it.
But now i have the following problem:

File "C:/xbee-gui-master/MainForm.py", line 18, in <module>
    class Block(QtGui.QMainWindow, QtGui.QTreeView):
NameError: name 'QtGui' is not defined

How to solve it ?

[JonB]

@Mitko
Qt5 moved widget code from QtGui to QtWidgets, change to that. You will have to do the same for any other widget stuff. I gave you reference to https://wiki.qt.io/Transition_from_Qt_4.x_to_Qt5 for this --- it's the very first item there --- and told you that's what I used to do the porting work.

[Mitko]

@JonB
I began to solve this problem, but now i have this error:

 C:\xbee-gui-master\PyQT\Scripts\python.exe C:/xbee-gui-master/MainForm.py
Traceback (most recent call last):
  File "C:/xbee-gui-master/MainForm.py", line 360, in <module>
    main()
  File "C:/xbee-gui-master/MainForm.py", line 355, in main
    bl = Block()
  File "C:/xbee-gui-master/MainForm.py", line 26, in __init__
    self.setWindowIcon(QtWidgets.QIcon("zigbee.png"))
AttributeError: module 'PyQt5.QtWidgets' has no attribute 'QIcon'

[jsulm]

@Mitko said in PyQT4 App:

QIcon

This one is in gui module.
I guess in PyQt it is PyQt5.QtGui

[Mitko]

@jsulm

I change it, but now i have this:

 C:\xbee-gui-master\PyQT\Scripts\python.exe C:/xbee-gui-master/MainForm.py
Traceback (most recent call last):
  File "C:/xbee-gui-master/MainForm.py", line 360, in <module>
    main()
  File "C:/xbee-gui-master/MainForm.py", line 355, in main
    bl = Block()
  File "C:/xbee-gui-master/MainForm.py", line 26, in __init__
    self.setWindowIcon(QtWidgets.QGui("zigbee.png"))
AttributeError: module 'PyQt5.QtWidgets' has no attribute 'QGui'

[jsulm]

@Mitko said in PyQT4 App:

PyQt5.QtWidgets' has no attribute 'QGui'

I did not suggest to write QtWidgets.QGui but PyQt5.QtGui

[Mitko]

@jsulm

 C:\xbee-gui-master\PyQT\Scripts\python.exe C:/xbee-gui-master/MainForm.py
Traceback (most recent call last):
  File "C:/xbee-gui-master/MainForm.py", line 360, in <module>
    main()
  File "C:/xbee-gui-master/MainForm.py", line 355, in main
    bl = Block()
  File "C:/xbee-gui-master/MainForm.py", line 26, in __init__
    self.setWindowIcon(PyQt5.QGui("zigbee.png"))
NameError: name 'PyQt5' is not defined 

[jsulm]

@Mitko said in PyQT4 App:

PyQt5.QGui("zigbee.png")

What is this?! You want to use QIcon, right?
It should be I guess

QtGui.QIcon("zigbee.png")

It is also shown in the documentation which you should consult: https://doc.qt.io/qtforpython-5/PySide2/QtGui/QIcon.html

[Mitko]

@jsulm

 C:\xbee-gui-master\PyQT\Scripts\python.exe C:/xbee-gui-master/MainForm.py
Traceback (most recent call last):
  File "C:/xbee-gui-master/MainForm.py", line 360, in <module>
    main()
  File "C:/xbee-gui-master/MainForm.py", line 355, in main
    bl = Block()
  File "C:/xbee-gui-master/MainForm.py", line 26, in __init__
    self.setWindowIcon(QtGui.QIcon("zigbee.png"))
NameError: name 'QtGui' is not defined 

[jsulm]

@Mitko said in PyQT4 App:

name 'QtGui' is not defined

You of course have to import this module like any other module

[Mitko]

@jsulm
Via Interpreter ? I've try, it seems to installed, but i've got same error

[jsulm]

@Mitko said in PyQT4 App:

Via Interpreter ?

Don't know what you mean.

from PyQt5 import QtGui

[Mitko]

@jsulm
Thank you, i fix this

But now i have this:

 Traceback (most recent call last):
  File "C:/xbee-gui-master/MainForm.py", line 360, in <module>
    main()
  File "C:/xbee-gui-master/MainForm.py", line 355, in main
    bl = Block()
  File "C:/xbee-gui-master/MainForm.py", line 28, in __init__
    self.centralWidgetLayout = QtGui.QVBoxLayout(self.centralWidget)
AttributeError: module 'PyQt5.QtGui' has no attribute 'QVBoxLayout'

[jsulm]

@Mitko said in PyQT4 App:

QVBoxLayout

Please do also some research on your own!
If you google for QVBoxLayout you will find https://doc.qt.io/qt-5/qvboxlayout.html and there it is clearly stated that it is in widgets module (qmake: QT += widgets).

[Mitko]

@jsulm
I'm new and don't understand everything

[Mitko]

@jsulm

I've try this but i have same error

from PyQt5.QtWidgets import (QApplication, QWidget, QVBoxLayout, QHBoxLayout,
                             QPushButton, QLabel, QLineEdit, QTabBar,
                             QFrame, QStackedLayout)

[JonB]

@Mitko
You should only get the same error if you left the code with QtGui.QVBoxLayout(self.centralWidget). After the import it should work with plain QVBoxLayout(self.centralWidget). Otherwise please don't say " same error" when so many errors are flying around, please show the actual line of any error and paste the error message.

[Mitko]

@JonB

When i use:

from PyQt5 import QtWidgets, QtCore, QtGui, QVBoxLayout

I have this:

File "C:/xbee-gui-master/MainForm.py", line 3, in <module>
 from PyQt5 import QtWidgets, QtCore, QtGui, QVBoxLayout
ImportError: cannot import name 'QVBoxLayout' from 'PyQt5' (C:\xbee-gui-master\PyQT\lib\site-packages\PyQt5\__init__.py)

When i use:

from PyQt5 import QtWidgets, QtCore, QtGui

from PyQt5.QtWidgets import (QApplication, QWidget, QVBoxLayout, QHBoxLayout,
                             QPushButton, QLabel, QLineEdit, QTabBar,
                             QFrame, QStackedLayout)

I have this:

File "C:/xbee-gui-master/MainForm.py", line 35, in __init__
   self.centralWidgetLayout = QtGui.QVBoxLayout(self.centralWidget)
AttributeError: module 'PyQt5.QtGui' has no attribute 'QVBoxLayout'