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-rw-r--r--coverage/env.py13
1 files changed, 11 insertions, 2 deletions
diff --git a/coverage/env.py b/coverage/env.py
index 85ffa5ff..1d2846c6 100644
--- a/coverage/env.py
+++ b/coverage/env.py
@@ -1,3 +1,6 @@
+# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
+# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
+
"""Determine facts about the environment."""
import os
@@ -11,11 +14,17 @@ LINUX = sys.platform == "linux2"
PYPY = '__pypy__' in sys.builtin_module_names
# Python versions.
-PY2 = sys.version_info < (3, 0)
-PY3 = sys.version_info >= (3, 0)
+PYVERSION = sys.version_info
+PY2 = PYVERSION < (3, 0)
+PY3 = PYVERSION >= (3, 0)
# Coverage.py specifics.
+
# Are we using the C-implemented trace function?
C_TRACER = os.getenv('COVERAGE_TEST_TRACER', 'c') == 'c'
+
# Are we coverage-measuring ourselves?
METACOV = os.getenv('COVERAGE_COVERAGE', '') != ''
+
+# Are we running our test suite?
+TESTING = os.getenv('COVERAGE_TESTING', '') != ''