python - PyQt5, click menu and open new window -


i have used qt designer create 2 different windows, input_window.ui , help_window.ui. here python scripts showing input window. in input window, there menu bar("about>>help"). how pop help_window when "help" clicked?

here init.py

import sys input_window import ui_mainwindow pyqt5.qtwidgets import qmainwindow, qapplication help_window import ui_help    class mainwindow(qmainwindow, ui_mainwindow):     def __init__(self, parent=none):         super(mainwindow, self).__init__(parent)         self.setupui(self)         self.pophelp.triggered.connect(self.ui_help)       def help_window(self):         self.window=ui_help()         self.window.show()  if __name__ == "__main__":     app = qapplication(sys.argv)     window = mainwindow()     window.show()     sys.exit(app.exec_())

here code of ui_help

from pyqt5 import qtcore, qtgui, qtwidgets  class ui_help(object):     def setupui(self, help):         help.setobjectname("help")         help.resize(251, 99)         icon = qtgui.qicon()         icon.addpixmap(qtgui.qpixmap("logo.png"), qtgui.qicon.normal, qtgui.qicon.off)         help.setwindowicon(icon)         self.gridlayoutwidget = qtwidgets.qwidget(help)         self.gridlayoutwidget.setgeometry(qtcore.qrect(9, 9, 231, 81))         self.gridlayoutwidget.setobjectname("gridlayoutwidget")         self.gridlayout = qtwidgets.qgridlayout(self.gridlayoutwidget)         self.gridlayout.setcontentsmargins(0, 0, 0, 0)         self.gridlayout.setobjectname("gridlayout")         self.plaintextedit = qtwidgets.qplaintextedit(self.gridlayoutwidget)         font = qtgui.qfont()         font.setfamily("times new roman")         font.setpointsize(10)         font.setbold(true)         font.setweight(75)         self.plaintextedit.setfont(font)         self.plaintextedit.setframeshape(qtwidgets.qframe.winpanel)         self.plaintextedit.setframeshadow(qtwidgets.qframe.sunken)         self.plaintextedit.setlinewidth(1)         self.plaintextedit.setsizeadjustpolicy(qtwidgets.qabstractscrollarea.adjustignored)         self.plaintextedit.setreadonly(true)         self.plaintextedit.setobjectname("plaintextedit")         self.gridlayout.addwidget(self.plaintextedit, 0, 0, 1, 1)          self.retranslateui(help)         qtcore.qmetaobject.connectslotsbyname(help)

qt designer serves implement view in simple way, , therefore class generates oriented view, , our job implement logic did ui_mainwindow , mainwindow, ui_help. in case recommend when have built help_window.ui have used dialog template, if chose widget template there no problem, both compatible.

a simple solution create qdialog , implement in ui_help view shown below:

class mainwindow(qmainwindow, ui_mainwindow):     def __init__(self, parent=none):         super(mainwindow, self).__init__(parent)         self.setupui(self)         self.pophelp.triggered.connect(self.help_window)      def help_window(self):         # if pass parent (self) block main window,         # , if not pass both independent,         # recommend try both cases.         widget = qdialog(self)         ui=ui_help()         ui.setupui(widget)         widget.exec_()

if in ui_help want implement logic recommend creating class similar mainwindow shown below:

class help(qdialog, ui_help):     def __init__(self, parent=none):         super(help, self).__init__(parent)         self.setupui(self)  class mainwindow(qmainwindow, ui_mainwindow):     def __init__(self, parent=none):         super(mainwindow, self).__init__(parent)         self.setupui(self)         self.pophelp.triggered.connect(self.help_window)      def help_window(self):         widget = help()         widget.exec_()

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