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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def display(url):
 	"""Display a file in ds9"""

	import os
	oscmd="curl --silent -g --fail --max-time 1800 --user jkavelaars '%s'" % (url)
	logger.debug(oscmd)
    	os.system(oscmd+' | xpaset ds9 fits')
	return