[Python] ValueError: No closing quotation

I have the following code which returns the public IP's

def gather_public_ip():
ACCESS_KEY = config.get('aws','access_key')
SECRET_KEY = config.get('aws','secret_key')
regions = regions = ['us-west-2','eu-central-1','ap-southeast-1']
# regions = config.get('aws','region').split(',')
all_EIP = []
for region in regions:
client = boto3.client('ec2',aws_access_key_id=ACCESS_KEY,aws_secret_access_key=SECRET_KEY,region_name=region,)
addresses_dict = client.describe_addresses()
for eip_dict in addresses_dict['Addresses']:
if 'PrivateIpAddress' in eip_dict:
print eip_dict['PublicIp']
# return str(eip_dict['PublicIp'])
all_EIP.append(eip_dict['PublicIp'])
print all_EIP
# print str(all_EIP)
return str(all_EIP)


This is called and returned as :

net_range = gather_public_ip()
for ip in net_range:
r = s.run(ip)


run looks like :

def run(self, targets="" ,options="-Pn"):
#start a new nmap scan on localhost with some specific options

syslog.syslog("Scan started")
parsed = None
nmproc = NmapProcess(targets,options)
rc = nmproc.run()

if rc != 0:
syslog.syslog("nmap scan failed: {0}".format(nmproc.stderr))
try:
parsed = NmapParser.parse(nmproc.stdout)
self.report = parsed
except NmapParserException as e:
syslog.syslog("Exception raised while parsing scan: {0}".format(e.msg))

syslog.syslog("Scan complete")
syslog.syslog("Scan duration: "+ str(parsed.elapsed))
self.report = parsed
return parsed


after printing the list , this throws me :

Traceback (most recent call last):
File "portwatch.py", line 300, in <module>
r = s.run(ip)
File "portwatch.py", line 239, in run
rc = nmproc.run()
File "/usr/local/lib/python2.7/dist-packages/libnmap/process.py", line 257, in run
else shlex.split(self.__nmap_command_line)
File "/usr/lib/python2.7/shlex.py", line 279, in split
return list(lex)
File "/usr/lib/python2.7/shlex.py", line 269, in next
token = self.get_token()
File "/usr/lib/python2.7/shlex.py", line 96, in get_token
raw = self.read_token()
File "/usr/lib/python2.7/shlex.py", line 172, in read_token
raise ValueError, "No closing quotation"
ValueError: No closing quotation

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