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Diffstat (limited to 'cloudinit/CloudConfig/cc_apt_update_upgrade.py')
-rw-r--r--cloudinit/CloudConfig/cc_apt_update_upgrade.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/cloudinit/CloudConfig/cc_apt_update_upgrade.py b/cloudinit/CloudConfig/cc_apt_update_upgrade.py
index d466f3c4..0cbe02d4 100644
--- a/cloudinit/CloudConfig/cc_apt_update_upgrade.py
+++ b/cloudinit/CloudConfig/cc_apt_update_upgrade.py
@@ -131,7 +131,9 @@ def generate_sources_list(codename, mirror):
# srclist is a list of dictionaries,
# each entry must have: 'source'
# may have: key, ( keyid and keyserver)
-def add_sources(srclist, searchList={ }):
+def add_sources(srclist, searchList=None):
+ if searchList is None:
+ searchList = {}
elst = []
for ent in srclist: