Newer, better text editor with WxPython

# -*- coding: utf-8 -*-
"""
Created on Wed Jul 31 11:18:25 2013

@author: lstoss
"""

import wx # imports the wx module

class Notespad(wx.Frame): # creates a class, inherits from the frame class

    UNTITLED = 'Untitled'
    WILDCARD = 'Text Documents (*.txt)|*.txt|Python Documents (*.py)|*.py'

    def __init__(self, *args, **kwargs):
        # Attributes
        self.file_directory = None
        self.file_name = self.UNTITLED
        self.title_string = '{}{} - NotesPad'

        # Frame Setup
        super(Notespad, self).__init__(*args, **kwargs)
        self.CreateStatusBar()

        # Frame Menu
        menubar = wx.MenuBar()
        self.SetMenuBar(menubar)

        file_menu = wx.Menu()
        menu_open = file_menu.Append(wx.ID_OPEN, "&Open", "Open an existing file")
        menu_new = file_menu.Append(wx.ID_NEW, '&New', 'Creates a new document')
        menu_save = file_menu.Append(wx.ID_SAVE, '&Save', 'Saves the active document')
        menu_saveas = file_menu.Append(wx.ID_SAVEAS, 'Save &As', 'Saves the active document with a new name')

        file_menu.AppendSeparator()
        menu_exit = file_menu.Append(-1, "Exit", "Exit the Application")
        menubar.Append(file_menu, "&File")

        # Panel and Controls
        panel = wx.Panel(self)
        txt_ctrl = wx.TextCtrl(panel, style=wx.TE_MULTILINE)

        # Sizer Creation
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(panel, 1, wx.EXPAND)

        p_sizer = wx.BoxSizer(wx.VERTICAL)
        p_sizer.Add(txt_ctrl, 1, wx.EXPAND)

        # Setting Sizers
        panel.SetSizer(p_sizer)
        self.SetSizer(sizer)
        self.Layout()

        # Event Binds
        self.Bind(wx.EVT_MENU, self.on_menu_open, menu_open)
        self.Bind(wx.EVT_MENU, self.on_menu_exit, menu_exit)
        self.Bind(wx.EVT_MENU, self.on_menu_new, menu_new)
        self.Bind(wx.EVT_MENU, self.on_menu_save, menu_save)
        self.Bind(wx.EVT_MENU, self.on_menu_saveas, menu_saveas)

        # Initial State
        self.SetTitle()

    # Event Handlers
    def on_menu_open(self, event):
        self.file_open()
        event.Skip()

    def on_menu_exit(self, event):
        self.Close()
        event.Skip()

    def on_menu_new(self, event):
        self.file_new()
        event.Skip()

    def on_menu_save(self, event):
        self.file_save()
        event.Skip()

    def on_menu_saveas(self, event):
        self.file_saveas()
        event.Skip()

    # Actions
    def file_open(self):
        with wx.FileDialog(self, message='Open', wildcard=self.WILDCARD, style=wx.OPEN) as dlg:
            if dlg.ShowModal() == wx.ID_OK:
                self.file_directory = dlg.GetDirectory()
                self.file_name = dlg.GetFilename()
                self.file_load()

    def file_load(self):
        full_path = '/'.join((self.file_directory, self.file_name))
        self.txt_ctrl.LoadFile(full_path)
        self.set_title()

    def file_new(self):
        self.file_directory = None
        self.file_name = self.UNTITLED
        self.txt_ctrl.Clear()
        self.set_title()

    def file_saveas(self):
        with wx.FileDialog(self, message='Save as', wildcard=self.WILDCARD, style=wx.SAVE) as dlg:
            if dlg.ShowModal() == wx.ID_OK:
                self.file_directory = dlg.GetDirectory()
                self.file_name = dlg.GetFilename()
                self.file_save()

    def file_save(self):
        if self.file_name == self.UNTITLED:
            self.file_saveas()
        else:
            full_path = '/'.join((self.file_directory, self.fifile_name))
            self.txt_ctrl.SaveFile(full_path)
            self.set_title()

    def set_title(self):
        is_modified = '*' if self.txt_ctrl.IsModified() else ''
        self.SetTitle(self.title_string.format(is_modified, self.file_name))


if __name__ == '__main__':
    wx_app = wx.App(False)
    wx_app.MainLoop()