title: open multiple filenames in tkinter and add the filesnames to a list
body: <p>what I want to do is to select multiple files
  using the tkinter filedialog
  and then add those items to a list.
  After that I want to use the list to process
  each file one by one.</p>
  
  <pre><code>#replace.py
  import string
  def main():
          #import tkFileDialog
          #import re
          #ff = tkFileDialog.askopenfilenames()
          #filez = re.findall('{(.*?)}', ff)
          import Tkinter,tkFileDialog
          root = Tkinter.Tk()
          filez = tkFileDialog.askopenfilenames(parent=root,title='Choose a file')
  </code></pre>
  
  <p>Now, I am able to select multiple files,
  but I dont know how to add those filenames to the list.
  any ideas?</p>