python - How to prevent downloading HTML/text pages as .png -

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http://puu.sh/3krct.png

my program generates random links service hosts images, , grabs , downloads random images. program makes lot of requests, , has go through proxies.

well, when program started, give path fresh large proxy list; however, proxies not connect website , return custom html page - or image service return message on page "you don't have permission view image." although, program still save request , download page .png extension

and html/text pages saved .png files:

http://puu.sh/3krxm.png

http://puu.sh/3krgn.png

is there way can prevent downloading of these pages, , download actual images?

thank you.

if self.proxy != false:     #make our requests go through proxy     self.opener.retrieve(url, filename) else:     urllib.request.urlretrieve(url, filename)

i think should change logic.

if proxy returns error getting page asked, uses http status code != 200

you should check in order:

  • the http status != 200
  • the content-type header returned correct type (in case image/jpeg)

and type of tasks suggest using requests module.


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