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-rw-r--r--coverage/env.py5
1 files changed, 4 insertions, 1 deletions
diff --git a/coverage/env.py b/coverage/env.py
index 6db3b85..528c774 100644
--- a/coverage/env.py
+++ b/coverage/env.py
@@ -4,6 +4,7 @@
"""Determine facts about the environment."""
import os
+import platform
import sys
# Operating systems.
@@ -11,10 +12,12 @@ WINDOWS = sys.platform == "win32"
LINUX = sys.platform == "linux2"
# Python implementations.
-PYPY = '__pypy__' in sys.builtin_module_names
+PYPY = (platform.python_implementation() == 'PyPy')
if PYPY:
PYPYVERSION = sys.pypy_version_info
+JYTHON = (platform.python_implementation() == 'Jython')
+
# Python versions.
PYVERSION = sys.version_info
PY2 = PYVERSION < (3, 0)