Update README, changelog and setup.py

Author: j4321

README.rst

@@ -24,7 +24,7 @@ Requirements
 ------------
 
 - Linux
-- Python 2.7 or 3.x with tkinter + ttk and python-psutil
+- Python 2.7 or 3.x with tkinter + ttk, python-psutil and python-babel
 
 
 Installation
@@ -115,9 +115,12 @@ Documentation
 Changelog
 ---------
 
-- tkfilebrowser 2.2.1
+- tkfilebrowser 2.2.2
     * Fix ValueError in after_cancel with Python 3.6.5
 
+- tkfilebrowser 2.2.1
+    * Fix __main__.py for python 2
+
 - tkfilebrowser 2.2.0
     * Use babel instead of locale in order not to change the locale globally
     * Speed up (a little) folder content display

changelog

@@ -6,9 +6,12 @@ Copyright 2017 Juliette Monsel <j_4321@protonmail.com>
 Changelog
 ---------
 
-- tkfilebrowser 2.2.1
+- tkfilebrowser 2.2.2
     * Fix ValueError in after_cancel with Python 3.6.5
 
+- tkfilebrowser 2.2.1
+    * Fix __main__.py for python 2
+
 - tkfilebrowser 2.2.0
     * Use babel instead of locale in order not to change the locale globally
     * Speed up (a little) folder content display

setup.py

@@ -12,7 +12,7 @@
     long_description = f.read()
 
 setup(name='tkfilebrowser',
-      version='2.2.1',
+      version='2.2.2',
       description='File browser for Tkinter, alternative to tkinter.filedialog in linux with GTK bookmarks support.',
       long_description=long_description,
       url='https://github.com/j4321/tkFileBrowser',

tkfilebrowser/__main__.py

@@ -20,9 +20,15 @@
 Example
 """
 
-from tkfilebrowser.constants import tk, ttk
 from tkfilebrowser import askopendirname, askopenfilenames, asksaveasfilename
-from tkinter import filedialog
+try:
+    import tkinter as tk
+    from tkinter import ttk
+    from tkinter import filedialog
+except ImportError:
+    import Tkinter as tk
+    import ttk
+    import tkFileDialog as filedialog
 
 root = tk.Tk()