fix Tkinter vs tkinter import

src/animate.py

@@ -12,7 +12,10 @@
 
 from __future__ import absolute_import
 import sys, os, subprocess, re, glob
-from tkinter import *
+try:
+  from Tkinter import *
+except ImportError:
+  from tkinter import *
 
 oneline = "Animate a series of image files"
 

src/image.py

@@ -13,7 +13,10 @@
 from __future__ import absolute_import
 import sys, os, subprocess, re, glob
 from math import *
-from tkinter import *
+try:
+  from Tkinter import *
+except ImportError:
+  from tkinter import *
 import Pmw
 from PIL import Image
 

src/plotview.py

@@ -12,7 +12,10 @@
 
 from __future__ import absolute_import
 import sys, re, glob, time
-from tkinter import *
+try:
+  from Tkinter import *
+except ImportError:
+  from tkinter import *
 
 oneline = "Plot multiple vectors from a data set"
 

src/vcr.py

@@ -11,7 +11,10 @@
 # Imports and external programs
 
 from __future__ import absolute_import
-from tkinter import *
+try:
+  from Tkinter import *
+except ImportError:
+  from tkinter import *
 import types
 
 oneline = "VCR-style GUI for 3d interactive OpenGL visualization"