Tkinter.PhotoImage不支持png图像 [英] Tkinter.PhotoImage doesn't not support png image

问题描述

我正在使用Tkinter编写GUI，并想在Tkiner.Label中显示png文件. 所以我有一些这样的代码:

I am using Tkinter to write a GUI and want to display a png file in a Tkiner.Label. So I have some code like this:

self.vcode.img = PhotoImage(data=open('test.png').read(), format='png')
self.vcode.config(image=self.vcode.img)

此代码在我的Linux计算机上正确运行.但是，当我在Windows计算机上运行它时，它会失败.我还在其他几台计算机(包括Windows和Linux)上进行了测试，但始终失败.

This code runs correctly on my Linux machine. But when I run it on my windows machine, it fails. I also tested on several other machines (include windows and linux), it failed all the time.

回溯是:

Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1486, in __call__
    return self.func(*args)
  File "C:\Documents and Settings\St\client\GUI.py", line 150, in showrbox
    SignupBox(self, self.server)
  File "C:\Documents and Settings\St\client\GUI.py", line 197, in __init__
    self.refresh_vcode()
  File "C:\Documents and Settings\St\client\GUI.py", line 203, in refresh_vcode
    self.vcode.img = PhotoImage(data=open('test.png').read(), format='png')
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 3323, in __init__
    Image.__init__(self, 'photo', name, cnf, master, **kw)
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 3279, in __init__
   self.tk.call(('image', 'create', imgtype, name,) + options)
TclError: image format "png" is not supported

如果我在源代码中删除format='png'，则回溯将变为:

If I delete format='png' in the source code, the traceback will become:

Exception in Tkinter callback
Traceback (most recent call last):
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 1486, in __call__
    return self.func(*args)
  File "C:\Documents and Settings\St\client\GUI.py", line 150, in showrbox
    SignupBox(self, self.server)
  File "C:\Documents and Settings\St\client\GUI.py", line 197, in __init__
    self.refresh_vcode()
  File "C:\Documents and Settings\St\client\GUI.py", line 203, in refresh_vcode
    self.vcode.img = PhotoImage(data=open('test.png').read())
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 3323, in __init__
    Image.__init__(self, 'photo', name, cnf, master, **kw)
  File "C:\Python27\lib\lib-tk\Tkinter.py", line 3279, in __init__
    self.tk.call(('image', 'create', imgtype, name,) + options)
TclError: couldn't recognize image data

那么，我应该怎么做才能使其支持png文件?

So, what should I do to make it support png files?

推荐答案

tkinter仅支持3种文件格式，即GIF，PGM和PPM.您可能需要将文件转换为.GIF然后加载它们(很容易，但是正如jonrsharpe所说，如果不先转换文件就无法工作)，也可以将程序移植到Python 2.7并使用Python Imaging Library(PIL)及其tkinter扩展以使用PNG图片.

tkinter only supports 3 file formats off the bat which are GIF, PGM, and PPM. You will either need to convert the files to .GIF then load them (Far easier, but as jonrsharpe said, nothing will work without converting the file first) or you can port your program to Python 2.7 and use the Python Imaging Library (PIL) and its tkinter extensions to use a PNG image.

您可能会发现有用的链接: http://effbot.org/tkinterbook/photoimage.htm

A link that you might find useful: http://effbot.org/tkinterbook/photoimage.htm

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