Why my image cannot be displayed?

[huey.y.jiang at gmail.com]

On Friday, August 12, 2016 at 9:40:15 PM UTC-4, huey.y... at gmail.com wrote:
> Hi All,
> 
> Image display drives me crazy. After I get it displayed, and want to do the job with a class, display failed again. Please take a look at my trial code:
> 
> from Tkinter import *
> 
> class imageDisplay:
> 	def __init__(self, parent=None):
> 		canvas = Canvas(width=400, height=300, bg='beige')
> 		canvas.pack()
> 		self.canvas = canvas
> 		img = PhotoImage(file="xxx.gif")
> 		self.canvas.create_image(150, 0, image=img, anchor=NW)
> 
> if __name__ == '__main__':
> 	imageDisplay()
> 	mainloop()
> 
> Result:  A blank canvas was displayed. No error message. 
> 
> Can somebody help? Thanks so much!

Thanks! it's working. Particularly thanks for your explanation!