refactor(test): don't even import contracts if not using PyContracts

On CPython 3.11, PyContracts fails on import, so we need to shut it off more
completely.

PyContracts is unmaintained these days, so we'll probably get rid of it
completely soon.

1 files changed, 1 insertions, 6 deletions

diff --git a/coverage/misc.py b/coverage/misc.py
index 40f00930..584efeaa 100644
--- a/coverage/misc.py
+++ b/coverage/misc.py
@@ -100,14 +100,9 @@ def dummy_decorator_with_args(*args_unused, **kwargs_unused):
     return _decorator
 
 
-# Environment COVERAGE_NO_CONTRACTS=1 can turn off contracts while debugging
-# tests to remove noise from stack traces.
-# $set_env.py: COVERAGE_NO_CONTRACTS - Disable PyContracts to simplify stack traces.
-USE_CONTRACTS = env.TESTING and not bool(int(os.environ.get("COVERAGE_NO_CONTRACTS", 0)))
-
 # Use PyContracts for assertion testing on parameters and returns, but only if
 # we are running our own test suite.
-if USE_CONTRACTS:
+if env.USE_CONTRACTS:
     from contracts import contract              # pylint: disable=unused-import
     from contracts import new_contract as raw_new_contract