the script I wrote for nmap does not work - sass

Question

I wrote a script for nmap but it doesn't work
Maybe a problem with the libraries, but not sure (I'm new to this)
import nmap
import sys
import traceback
def scan_hosts(hosts, scan_type):
try:
nm = nmap.PortScanner()
if scan_type == 'SYN':
nm.scan(hosts=hosts, arguments='-p- -sS -T4 -A --script=vulners')
elif scan_type == 'UDP':
nm.scan(hosts=hosts, arguments='-p- -sU -T4 -A --script=vulners')
elif scan_type == 'FULL':
nm.scan(hosts=hosts, arguments='-p- -sS -sU -T4 -A --script=vulners')
for host in nm.all_hosts():
print('Host: %s (%s)' % (host, nm[host].hostname()))
for proto in nm[host].all_protocols():
print('Protocol: %s' % proto)
lport = nm[host][proto].keys()
for port in lport:
print('port : %s\tstate : %s' % (port, nm[host][proto][port]['state']))
except Exception as e:
print(f"An error occurred while scanning the host: {e}")
print("\n".join(traceback.format_exception(etype=type(e), value=e, tb=e.__traceback__)))
# Attempt to correct the error
if "timed out" in str(e):
print("Error: Host timed out. Retrying with increased timeout...")
nm.scan(hosts=hosts, arguments='-p- -sS -T4 -A --script=vulners --host-timeout=60')
else:
print("Error could not be corrected. Exiting...")
sys.exit(1)
if __name__ == '__main__':
hosts = '0.0.0.0/0'
scan_type = 'FULL' # can be one of 'SYN', 'UDP', or 'FULL'
scan_hosts(hosts, scan_type)
Maybe a problem with the libraries, but not sure (I'm new to this)