if host in self.psk_hosts:
raise error.Error("host %s already defined for psk" % host)
- if vals["certificate"] == None:
+ if vals["certificate"] is None:
raise error.Error("'certificate' not defined for %s" % host)
- elif vals["private_key"] == None:
+ elif vals["private_key"] is None:
# Assume the private key is stored in the same PEM file as
# the certificate. We make a copy of "vals" so that we don't
# modify the original "vals", which would cause the script