title: wxPython/TextCtrl replacing a character within the first x lines of a string
body: <p>I've scanned the questions here as well as the web and haven't found my answer, this is my first question and I'm a noobie to (wx)Python so go easy on me.</p>
  
  <hr>
  
  <p>Using <code>TextCtrl</code> I'm trying to remove a single character within a string, this string will always start with the same set of characters but the rest of the string is freely editable by the user.</p>
  
  <p>e.g</p>
  
  <pre><code>self.text=wx.TextCtrl(panel,-1"hello world,, today we're asking a question on stackoverflow, what would you ask?")
  </code></pre>
  
  <p>poor example but how would I find and remove the 11th(',') character so the sentence is more formatted without affecting the rest of the string?</p>
  
  <p>I've tried standard python indexing but I get an error for that, I can successfully remove chunks of the string from the start outwards of the end inwards but I need only a single character removed.</p>
  
  <p>Again, sorry for the poor terminology, as I said I'm fairly new to python so some of my terms may be a bit iffy.</p>