why is empty ListCtrl so big?

I’ve added a few ListCtrl objects with no items added to them… so why aren’t they as thin as a single-line TextCtrl or something like that?

import wx

class panel1(wx.Panel):

def init(self, parent):

wx.Panel.init(self, parent)

row = wx.wx.StaticBoxSizer(wx.StaticBox(self,label=“wx.HORIZONTAL - proportion=1”),wx.HORIZONTAL)

row.Add(wx.StaticText(self,label=“proportion=0”,style=wx.BORDER_DOUBLE),0, wx.ALL,10)

row.Add(wx.StaticText(self,label=“proportion=1”,style=wx.BORDER_DOUBLE),1, wx.ALL,10)

row.Add(wx.ListCtrl(self,style=wx.LC_SMALL_ICON|wx.SUNKEN_BORDER),1,wx.EXPAND)

self.SetSizerAndFit(row)

class panel2(wx.Panel):

def init(self, parent):

wx.Panel.init(self, parent)

row = wx.StaticBoxSizer(wx.StaticBox(self,label=“wx.HORIZONTAL - proportion=1”),wx.HORIZONTAL)

row.Add(wx.StaticText(self,label=“proportion=1”,style=wx.BORDER_DOUBLE),1, wx.ALL,10)

row.Add(wx.StaticText(self,label=“proportion=2, wx.EXPAND”,style=wx.BORDER_DOUBLE),2, wx.EXPAND|wx.ALL,10)

list1 =wx.ListCtrl(self,style=wx.LC_SMALL_ICON|wx.SUNKEN_BORDER)

#list1.InsertColumn(0, ‘RMA’, width=-1)

row.Add(list1,1,wx.EXPAND)

self.SetSizerAndFit(row)

class Frame(wx.Frame):

def init(self):

wx.Frame.init(self, None, title=‘BoxSizer demo (resize the frame)’)

mainPanel = wx.Panel(self)

mainSizer = wx.BoxSizer(wx.VERTICAL)

mainPanel.SetBackgroundColour(wx.WHITE)

#layout = wx.StaticBoxSizer(wx.StaticBox(mainPanel,label=“wx.VERTICAL”),wx.VERTICAL)

row 1

row = panel1(mainPanel)

mainSizer.Add(row,1) # add row 1 without arguments

row 2

row = panel2(mainPanel)

mainSizer.Add(row,1) # add row 2 with proportion = 1

row 3

row = wx.StaticBoxSizer(wx.StaticBox(mainPanel,label=“wx.HORIZONTAL - proportion=1, wx.EXPAND”),wx.HORIZONTAL)

row.Add(wx.StaticText(mainPanel,label=“proportion=0”,style=wx.BORDER_DOUBLE),0, wx.ALL,10)

row.Add(wx.StaticText(mainPanel,label=“proportion=1”,style=wx.BORDER_DOUBLE),1, wx.ALL,10)

mainSizer.Add(row,1,wx.EXPAND) # add row 3 with proportion = 0 and wx.EXPAND

mainPanel.SetSizerAndFit(mainSizer)

sizer = wx.BoxSizer(wx.VERTICAL)

sizer.AddF(mainPanel, wx.SizerFlags(1).Expand())

self.SetSizerAndFit(sizer)

app = wx.App(False)

Frame().Show()

app.MainLoop()