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nathaniel gentile 441dc369ba py3 compatibility: convert bytes to str (#33206)
Fixes #31723
In python3, ansible's fetch_url utility function wraps urllib.request.urlopen.
For HTTP and HTTPS URLs, this function returns a http.client.HTTPResponse object slightly modified.
Calling .read() on an HTTPResponse object returns bytes (note the docstring fix).

Here, to_native is used to convert the bytestrings returned by fetch_url into unicode strings.
This is necessary because:
  1. Pre python3.6, json.loads requires passing a string, not a bytestring, as its argument
  2. In python3 generally, testing if a string is a substring of a bytestring
     using the 'in' operator will raise a TypeError

see:
- https://docs.python.org/3/library/urllib.request.html#urllib.request.urlopen
- https://docs.python.org/3/library/http.client.html#http.client.HTTPResponse.read
- https://docs.python.org/3/library/json.html#json.loads
2017-12-15 16:17:15 -06:00
..
ansible py3 compatibility: convert bytes to str (#33206) 2017-12-15 16:17:15 -06:00