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-rw-r--r--coverage/control.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/coverage/control.py b/coverage/control.py
index 823169d1..250bc137 100644
--- a/coverage/control.py
+++ b/coverage/control.py
@@ -648,8 +648,9 @@ class Coverage(object):
self._warn("No data was collected.", slug="no-data-collected")
# Find files that were never executed at all.
- for file_path, plugin_name in self._inorout.find_unexecuted_files():
- self._data.touch_file(file_path, plugin_name)
+ if self._data:
+ for file_path, plugin_name in self._inorout.find_unexecuted_files():
+ self._data.touch_file(file_path, plugin_name)
if self.config.note:
self._data.add_run_info(note=self.config.note)