#
carbon_copy = []
for copy_to in daklib.utils.split_args(Options.get("Carbon-Copy")):
- if daklib.utils.str_isnum(copy_to):
+ if copy_to.isdigit():
carbon_copy.append(copy_to + "@" + Cnf["Dinstall::BugServer"])
elif copy_to == 'package':
for package in arguments: