No IP range gives error

[chipach]

The error below is given when a blank entry is used for Allowed IPs, forcing execution to stop. When I put in a valid CIDR address, things seemed to process further.

u'' does not appear to be an IPv4 or IPv6 network: ValueError
Traceback (most recent call last):
File "/var/task/lambda_function.py", line 128, in lambda_handler
ipranges.append(ip_network(u'%s' % i))
File "/var/task/ipaddress.py", line 202, in ip_network
address)
ValueError: u'' does not appear to be an IPv4 or IPv6 network