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-rw-r--r--coverage/misc.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/coverage/misc.py b/coverage/misc.py
index 40fe8f71..0378173f 100644
--- a/coverage/misc.py
+++ b/coverage/misc.py
@@ -115,8 +115,10 @@ class Hasher(object):
self.md5.update(to_bytes(str(type(v))))
if isinstance(v, string_class):
self.md5.update(to_bytes(v))
+ elif v is None:
+ pass
elif isinstance(v, (int, float)):
- self.update(str(v))
+ self.md5.update(to_bytes(str(v)))
elif isinstance(v, (tuple, list)):
for e in v:
self.update(e)