shazow/urllib3 — comment on commit 99cd0a3c68de889af1cbcf82580d24057ab8a29d
File: dummyserver/testcase.py line 20
By shazow:

For the member tests to be able to refer to it without hardcoding. So for both.

Further down, when you see the HTTPSDummyServerTestCase, it depends on scheme being https.