diff --git a/.coveragerc b/.coveragerc
new file mode 100644
index 00000000..c836a9a6
--- /dev/null
+++ b/.coveragerc
@@ -0,0 +1,6 @@
+[run]
+omit =
+    */python?.?/*
+    */lib-python/?.?/*.py
+    */lib_pypy/_*.py
+    */site-packages/*