KeyError: 'feed' when using format other than 'json'

[chuckwondo]

When performing a query with a format other than "json", a KeyError is raised.

$ python -c "import cmr; cmr.queries.GranuleQuery().format('umm_json').short_name('MOD02QKM').get(1)"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File ".../python_cmr/cmr/queries.py", line 73, in get
    if page_size > len(response.json()['feed']['entry']) or len(results) >= limit:
                       ~~~~~~~~~~~~~~~^^^^^^^^
KeyError: 'feed'

[chuckwondo]

I'll submit a PR for this, as I see there's also a problem with the logic in the get method regarding counting results for non-json formats as well. Specifically, for non-json formats, the length of the results list is equal to the number of pages fetched (i.e., the number or requests), not the number of items fetched. For example, for a non-json format, if I want to get 10 items, I actually get 10 pages of items. Given that the page size is 2000, this means I will actually get 20,000 items, not 10 items.

[chuckwondo]

I'll submit a PR for this, as I see there's also a problem with the logic in the get method regarding counting results for non-json formats as well. Specifically, for non-json formats, the length of the results list is equal to the number of pages fetched (i.e., the number or requests), not the number of items fetched. For example, for a non-json format, if I want to get 10 items, I actually get 10 pages of items. Given that the page size is 2000, this means I will actually get 20,000 items, not 10 items.

Correction: I don't get 10 pages of 2000 items, I get 10 pages of 10 items. So I get only 100 items, not 20,000, but still, I'm getting many more items than I want. Generally, instead of getting only n items, I'm getting n^2 items when n <= 2000, and 2000 * n items when n > 2000.