python - Second panel does not show up in wxpython application -

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i want place 2 panels side side (horizontally) on panel, second panel not show up:

import wx  szflags = wx.expand | wx.all min_height = 50 height_ratio = 4 pborder = 10 lborder = 5     class chartpanel(wx.panel):          def __init__(self, *args, **kwargs):             wx.panel.__init__(self, *args, **kwargs)             self.setbackgroundcolour(wx.colour(226,226,226))              self.st = wx.statictext(self, label='chart panel')             #self.chart = bar_line.canvaspanel(self, "320")              sizer = wx.boxsizer(wx.vertical)             sizer.add(self.st, 1 , szflags , lborder)             #sizer.add(self.chart, 1 , szflags)             self.setsizer(sizer)       class notebookpage(wx.panel):          def __init__(self, *args, **kwargs):             fleet = kwargs.pop('fleet_name', none)             wx.panel.__init__(self, *args, **kwargs)               self.mainpanel = notebookpage_mainpanel(self, name='notebook_page_mainpanel', fleet_name=fleet)             self.chartpanel = chartpanel(self, name='notebook_page_chartpanel')              sizer = wx.boxsizer(wx.horizontal)             sizer.add(self.mainpanel, 1, wx.expand|wx.all,border=10)             sizer.add(self.chartpanel, 1, wx.expand|wx.all,border=10)             self.setsizer(sizer)

here chartpanel doesn't show up. wrong above?

actually need create parent panel , add 2 of ur panels ..

create master panel contains 2 childs thats ur notebookpage , chart panel

    class notebookpage(wx.panel):      def __init__(self, *args, **kwargs):         fleet = kwargs.pop('fleet_name', none)         wx.panel.__init__(self, *args, **kwargs)          self.masterpanel=wx.panel(self,-1)         self.mainpanel = notebookpage_mainpanel(self.masterpanel, name='notebook_page_mainpanel', fleet_name=fleet)         self.chartpanel = chartpanel(self.masterpanel, name='notebook_page_chartpanel')          sizer = wx.boxsizer(wx.horizontal)         sizer.add(self.mainpanel, 1, wx.expand|wx.all,border=10)         sizer.add(self.chartpanel, 1, wx.expand|wx.all,border=10)         self.setsizer(sizer)

reference u can see link

second implemented same multiple panels link


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