I’m playing around with the Stack Overflow API using Python. I’m trying to decode the gzipped responses that the API gives.
import urllib, gzip
url = urllib.urlopen('http://api.stackoverflow.com/1.0/badges/name')
gzip.GzipFile(fileobj=url).read()
According to the urllib2 documentation, urlopen
“returns a file-like object”.
However, when I run read()
on the GzipFile object I’ve created using it, I get this error:
AttributeError: addinfourl instance has no attribute 'tell'
As far as I can tell, this is coming from the object returned by urlopen
.
It doesn’t appear to have seek either, as I get an error when I do this:
url.read()
url.seek(0)
What exactly is this object, and how do I create a functioning GzipFile
instance from it?
The urlopen docs list the supported methods of the object that is returned. I recommend wrapping the object in another class that supports the methods that gzip expects.
Other option: call the read method of the response object and put the result in a StringIO object (which should support all methods that gzip expects). This maybe a little more expensive though.
E.g.
import gzip
import json
import StringIO
import urllib
url = urllib.urlopen('http://api.stackoverflow.com/1.0/badges/name')
url_f = StringIO.StringIO(url.read())
g = gzip.GzipFile(fileobj=url_f)
j = json.load(g)
import urllib2
import json
import gzip
import io
url='http://api.stackoverflow.com/1.0/badges/name'
page=urllib2.urlopen(url)
gzip_filehandle=gzip.GzipFile(fileobj=io.BytesIO(page.read()))
json_data=json.loads(gzip_filehandle.read())
print(json_data)
io.BytesIO
is for Python2.6+. For older versions of Python, you could use cStringIO.StringIO
.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With