How to show all UI from another python file in current file when button is clicked.

sdf1444

Hi

Here is some code to display widgets in pyqt5. But how do I allow the code so that it displays the imported widget from another file in the same python file/window without creating a new window for the new widget.

pyqt.py

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from pyqt2 import *
class App(QWidget):
def init(self):
QMainWindow.init(self)
    pybutton = QPushButton('Click me', self)
    pybutton.resize(200,70)
    pybutton.move(400, 50)
    self.show()
if name == "main":
app = QApplication(sys.argv)
mainWin = App()
mainWin2 = App2()
sys.exit(app.exec_())

Here is also the code for the imported python file:

pyqt2.py

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *

class App2(QWidget):
def init(self):
QMainWindow.init(self)
    pybutton = QPushButton('hi', self)
    pybutton.resize(200,70)
    pybutton.move(900, 50)
    self.show()

mrjj

Hi
Widgets that do not get a parent assigned, will become windows.
So normally you would insert the imported widgets into a
layout on the mainwindow.

sdf1444

@mrjj

Hi

How do I do this? What is the code for this because I really don't understand how to do it.

Thanks very much much appreciated with also your help.

mrjj

@sdf1444
well something like
layout = QHBoxLayout()
layout.addWidget(button1) // button1 would be your imported widget instance

window.setLayout(layout)
window.show()

window most like being mainwindow

its a good idea to read about layouts
https://doc.qt.io/qtforpython/overviews/layout.html
so you know what you are using :)

sdf1444

@mrjj

But the imported widget is defined in a class so how do I use the class in the layout of the main window?

sdf1444

@mrjj

And how would this work for code I already have?

mrjj

Hi
but a widget is a class. ?
so you import, you create an instance and insert into layout.

It should not be an issue to integrate it with the code you have.
Maybe you already have a layout. else now would be a good time to use one :)

sdf1444

@mrjj

Can I have an example please?

sdf1444

@mrjj

So how would I create instances of the classes which have multiple widgets and then insert into the layout?

Thanks

mrjj

@sdf1444
Hi
what you say, classes, you mean normal python classes that use widgets or what do you mean?
I can't answer that as it would be either you create the master class (composite) then (if its a widget) or
you would create each widget by itself if the "class" if not a widget and you don't want to show it.
However, it really depends on what you import.

sdf1444

@mrjj

Basically this is an widget created inside a class. So I am importing widgets which are inside a master class. How do I instantiate this, and then insert into a layout?

class App2(QWidget):
def init(self):
QMainWindow.init(self)
    pybutton = QPushButton('hi', self)
    pybutton.resize(200,70)
    pybutton.move(900, 50)
    self.show()

mrjj

Well normally one would use App2 as that is the
composite widget.
So often that makes the most sense to use as it will then init the
widget it uses in a proper way.

sdf1444

@mrjj

So I how do I show this in the main window. What is the overall code?

mrjj

@sdf1444
something like
(import it )

layout = QHBoxLayout()
layout.addWidget(App2)
yourwindow.setLayout(layout)
yourwindow.show()

sdf1444

@mrjj

Hi

I am getting this error when I add the layout code into pyqt.py: TypeError: addWidget(self, QWidget, stretch: int = 0, alignment: Union[Qt.Alignment, Qt.AlignmentFlag] = Qt.Alignment()): argument 1 has unexpected type 'sip.wrappertype'

import sys
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from pyqt2 import *

class App(QWidget):
def init(self):
QMainWindow.init(self)

    layout = QHBoxLayout()
    layout.addWidget(App2)
    yourwindow.setLayout(layout)
    yourwindow.show()

    pybutton = QPushButton('Click me', self)
    pybutton.resize(200,70)
    pybutton.move(400, 50)
    self.show()

if name == "main":
app = QApplication(sys.argv)
mainWin = App()
sys.exit(app.exec_())

mrjj

Hi
So
app2 is NOT a QWidget ?
i have no idea what "sip.wrappertype" is :)

sdf1444

@mrjj

"app2" is a widget created from inside class.

mrjj

@sdf1444
it has to inherit QWidget or be a QWidget to be used in a layout.
Else its plain impossible and you must create the inner Widgets yourself. :)

sdf1444

@mrjj

Hi "app2" is a QWidget.

sdf1444

@mrjj

Because it is a QWidget it should be able to be shown but why do I get an error and is there another way to write this code because of an error.