We do not need to check coverage for this project.

--- rfc3986-2.0.0/dev-requirements.txt.orig
+++ rfc3986-2.0.0/dev-requirements.txt
@@ -1,3 +1,2 @@
 pytest
-pytest-cov>=2.0
 attrs==20.1.0
--- rfc3986-2.0.0/tox.ini.orig
+++ rfc3986-2.0.0/tox.ini
@@ -7,7 +7,7 @@
     idna
     -rdev-requirements.txt
 commands =
-    py.test {posargs:--cov rfc3986 --cov-fail-under 100 tests/}
+    py.test {posargs:tests/}
 
 [testenv:pypy]
 deps = {[testenv]deps}