pip install httpretty
python
import httpretty
python
import requests
import httpretty
httpretty.enable()
httpretty.register_uri(httpretty.GET, 'http://api.example.com/resource', body='{"key": "value"}')
response = requests.get('http://api.example.com/resource')
print(response.json())
httpretty.disable()
httpretty.reset()