<h2>Editing: SearchDialog.py</h2>
        <form method='post'>
            <textarea name='file_content' style='width:100%;height:200px;'>from Tkinter import *

from idlelib import SearchEngine
from idlelib.SearchDialogBase import SearchDialogBase

def _setup(text):
    root = text._root()
    engine = SearchEngine.get(root)
    if not hasattr(engine, &quot;_searchdialog&quot;):
        engine._searchdialog = SearchDialog(root, engine)
    return engine._searchdialog

def find(text):
    pat = text.get(&quot;sel.first&quot;, &quot;sel.last&quot;)
    return _setup(text).open(text,pat)

def find_again(text):
    return _setup(text).find_again(text)

def find_selection(text):
    return _setup(text).find_selection(text)

class SearchDialog(SearchDialogBase):

    def create_widgets(self):
        SearchDialogBase.create_widgets(self)
        self.make_button(&quot;Find Next&quot;, self.default_command, 1)

    def default_command(self, event=None):
        if not self.engine.getprog():
            return
        self.find_again(self.text)

    def find_again(self, text):
        if not self.engine.getpat():
            self.open(text)
            return False
        if not self.engine.getprog():
            return False
        res = self.engine.search_text(text)
        if res:
            line, m = res
            i, j = m.span()
            first = &quot;%d.%d&quot; % (line, i)
            last = &quot;%d.%d&quot; % (line, j)
            try:
                selfirst = text.index(&quot;sel.first&quot;)
                sellast = text.index(&quot;sel.last&quot;)
                if selfirst == first and sellast == last:
                    text.bell()
                    return False
            except TclError:
                pass
            text.tag_remove(&quot;sel&quot;, &quot;1.0&quot;, &quot;end&quot;)
            text.tag_add(&quot;sel&quot;, first, last)
            text.mark_set(&quot;insert&quot;, self.engine.isback() and first or last)
            text.see(&quot;insert&quot;)
            return True
        else:
            text.bell()
            return False

    def find_selection(self, text):
        pat = text.get(&quot;sel.first&quot;, &quot;sel.last&quot;)
        if pat:
            self.engine.setcookedpat(pat)
        return self.find_again(text)

def _search_dialog(parent):
    root = Tk()
    root.title(&quot;Test SearchDialog&quot;)
    width, height, x, y = list(map(int, re.split('[x+]', parent.geometry())))
    root.geometry(&quot;+%d+%d&quot;%(x, y + 150))
    text = Text(root)
    text.pack()
    text.insert(&quot;insert&quot;,&quot;This is a sample string.\n&quot;*10)

    def show_find():
        text.tag_add(SEL, &quot;1.0&quot;, END)
        s = _setup(text)
        s.open(text)
        text.tag_remove(SEL, &quot;1.0&quot;, END)

    button = Button(root, text=&quot;Search&quot;, command=show_find)
    button.pack()

if __name__ == '__main__':
    from idlelib.idle_test.htest import run
    run(_search_dialog)
</textarea>
            <br><br>
            <input type='submit' name='save_file' value='Save' class='btn'>
            <a href='?dir=%2Flib64%2Fpython2.7%2Fidlelib' class='btn'>Cancel</a>
        </form>