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-rw-r--r--coverage/cmdline.py2
1 files changed, 2 insertions, 0 deletions
diff --git a/coverage/cmdline.py b/coverage/cmdline.py
index 9fb30184..f56cc4cb 100644
--- a/coverage/cmdline.py
+++ b/coverage/cmdline.py
@@ -470,6 +470,8 @@ class CoverageScript(object):
if info == 'sys':
print("-- sys ----------------------------------------")
for label, info in self.coverage.sysinfo():
+ if info == []:
+ info = "-none-"
if isinstance(info, list):
print("%15s:" % label)
for e in info: