vk api. Why do the responses to the url from the browser and through the urllib2 library not match?

Question

Python

Please tell me why the result is different. In the browser I run
https_//api.vk.com/method/wall.get?uid=OUR_ID&owner_id=-947906&v=5.27& count=3 &access_token=<OUR_TOKEN>
and I get a normal result with three positions.
And if so:
import urllib2
urllib2.urlopen("https_//api.vk.com/method/wall.get?uid=<OUR_ID>&owner_id=-947906&v=5.27& count=3 &access_token=<OUR_TOKEN>").read (),
then only the last post