ConnectionError handling problem

Mark Lawrence breamoreboy at yahoo.co.uk
Sat Sep 19 18:18:12 CEST 2015


On 19/09/2015 07:13, shiva upreti wrote:
> I am learning python. I wrote a script using requests module.
> The scripts runs fine for sometime, but after a while it hangs. When I press CTRL+C it shows ConnectionError even though I have included exception handling.
> I am not sure as to why it cant handle ConnectionError when the script runs for a long time.
>
> This is a part(causing issues) of the script I am running:
>
> while(k<46656):
> 		j=res[k]
> 		url="http://172.16.68.6:8090/login.xml"	
> 		query_args = {'mode':'191', 'username':str(i), 'password':str(j), 'a':'1442397582010', 'producttype':'0'}
> 		
> 		try:
> 			r=requests.post(url, data=query_args)
> 		except:
> 			print "Connection error"
> 			time.sleep(30)
> 			continue
>
> 		html=r.text
> 		if(len(html) < 10):
> 			continue
>
> 		if("The system could not log you on" not in html):
> 			print "hello"
> 			filehandle=open("ids", "a")
> 			filehandle.write(str(i)+'\n')
> 			filehandle.write(str(j)+'\n')
> 			filehandle.close()
> 			break
> 		
> 		k=k+1
>
> Any help will be highly appreciated.
>

Never use a bare except in Python, always handle the bare minimum number 
of exceptions that you need to, in this case your ConnectionError.

-- 
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence



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