summaryrefslogtreecommitdiff
path: root/coverage/data.py
diff options
context:
space:
mode:
Diffstat (limited to 'coverage/data.py')
-rw-r--r--coverage/data.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/coverage/data.py b/coverage/data.py
index 41883398..c608f489 100644
--- a/coverage/data.py
+++ b/coverage/data.py
@@ -580,9 +580,9 @@ class CoverageData(object):
"""
if self._has_arcs():
- hasher.update(sorted(self.arcs(filename)))
+ hasher.update(sorted(self.arcs(filename) or []))
else:
- hasher.update(sorted(self.lines(filename)))
+ hasher.update(sorted(self.lines(filename) or []))
hasher.update(self.file_tracer(filename))
##