[英]Displaying an image with the Tkinter library — “too early to create image”
Here is my code to display an image from a URL: 这是我的代码,用于显示来自URL的图像:
def display_image(image_url):
# create image
image = Image.open(StringIO(urllib2.urlopen(image_url).read()))
image = ImageTk.PhotoImage(image)
# create display
root = tk.Tk()
root.title('captcha')
root.geometry("%dx%d+%d+%d" % (image.width(), image.height(), 0, 0))
# draw image
panel1 = tk.Label(root, image=image)
panel1.pack(side='top', fill='both', expand='yes')
panel1.image = image
# run display
root.mainloop()
I get the following output on my console: 我在控制台上得到以下输出:
Traceback (most recent call last):
File "vote.py", line 119, in <module>
display_image(recaptcha.get_image_url(challenge_field))
File "vote.py", line 89, in display_image
image = ImageTk.PhotoImage(image)
File "c:\Python27\lib\site-packages\PIL\ImageTk.py", line 113, in __init__
self.__photo = apply(Tkinter.PhotoImage, (), kw)
File "c:\Python27\lib\lib-tk\Tkinter.py", line 3244, in __init__
Image.__init__(self, 'photo', name, cnf, master, **kw)
File "c:\Python27\lib\lib-tk\Tkinter.py", line 3185, in __init__
raise RuntimeError, 'Too early to create image'
RuntimeError: Too early to create image
Exception AttributeError: "PhotoImage instance has no attribute '_PhotoImage__poto'" in <bound method PhotoImage.__del__ of <PIL.ImageTk.PhotoImage instance at 0x0000000002EB8148>> ignored
What am I doing wrong? 我究竟做错了什么? Any help would be greatly appreciated. 任何帮助将不胜感激。
You are creating the Tk
instance after using ImageTk
. 您正在使用ImageTk
之后创建Tk
实例。 You should create always the root element first, and then create the rest of the widgets. 您应该始终先创建根元素,然后再创建其余的小部件。
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