- update to 4.7.0:
* drop support for python 3.6
- drop
0001-Removing-unused-urllib3-dependency-loosening-request.patch
(upstream)

the tests/test_webservice which need porting to new python-mocket
when using a database, not the web service.
pip does not try to download stuff
decoded_content attribute.
- match buildrequires to requirements.txt