title: Change cell size in python wx widget
body: <p>I have the following piece of code</p>
  
  <pre><code>def create_gui(self):
  
      main_sizer = wx.GridBagSizer()
  
      self.main_txt = wx.TextCtrl(self ,-1, value="", style=wx.TE_MULTILINE)
      main_sizer.Add(self.main_txt,(1,0),(10,10),wx.EXPAND) 
  
      self.input_txt = wx.TextCtrl(self ,-1, value="", style=wx.TE_MULTILINE)
      main_sizer.Add(self.input_txt,(12,0),(5,1),wx.EXPAND) 
  
  
      main_sizer.AddGrowableCol(0)
      main_sizer.AddGrowableRow(0)
  
      self.SetSizerAndFit(main_sizer)
      self.SetSizeHints(600,500,750,650) 
      self.Fit()
      self.Show(True)
  </code></pre>
  
  <p>The problem is that i cannot control the size of the cells at all. In addition to that anything i do results to chaos. I am currently trying to change the width of th input_txt but 1 is too big and 2 or more adds up only a couple of millimeters (if not at all). I am familiar with Tkinter but WX seems to be too complicated for no good reason. If there is an easier way of doing it please let me know (boxsizer for example), all suggestions are welcome.</p>