Create sublist from list - python-3.x

Question

I have following list named svc_tk_input
['4505/tcp', '4506/tcp', '80/tcp', '4505/udp', '4506/udp', '80/udp']
and i have following service so defined:
svc_a = [port_x/udp]
svc_b = [port_y/tcp]
svc_c = [port_x/udp, port_x/tcp]
svc_d = [port_x/tcp, port_x/udp]
svc_e = [port_y/udp, port_y/tcp]
svc_f = [port_y/tcp, port_y/udp]
svc_g = [port_x/tcp, port_y/tcp]
svc_h = [port_x/udp, port_y/udp]
svc_i = [port_y/tcp, port_x/tcp]
svc_l = [port_y/udp, port_x/udp]
svc_m = [port_x/tcp, port_y/udp]
svc_n = [port_x/udp, port_y/tcp]
svc_o = [port_y/tcp, port_x/udp]
svc_p = [port_y/udp, port_x/tcp]
Final target is to see if any service is defined given the port/protocol in svc_tk_input.
Idea:
create a second list svc_tk_input_mod
svc_tk_input_mod list has all combination of input port/protocol
svc_tk_input_mod = [('4505/tcp'), ('4505/udp'), ('4506/tcp'), ('4506/udp'),...,('4505/tcp' ,'4505/udp'), ('4505/tcp' ,'80/udp'),... ]
check at the end if any service is defined (out of scope here and this part is already covered)
I try to create the list svc_tk_input_mod by using itertools permutations but list that i get contains such combination
[('4505/tcp', '4506/tcp', '4505/udp', '4506/udp'), ('4505/tcp', '4506/tcp', '4506/udp', '4505/udp'), ('4505/tcp', '4505/udp', '4506/tcp', '4506/udp'), (...)]
As you can see each single element never can match the definition of service (service is a list of max 2 element)
Any suggestion on how can i improve the above?
Update here my code
list_protocols = str(policy_dict[term_name]["protocol"]).split(",") # (udp tcp)
list_ports = str(policy_dict[term_name][port_item]).split(",") # (53, 22, 1024-65535)
svc_tk_val_input = [ ]
svc_tk_val_input = build_svc_tk_val_input.build_svc_tk_val(list_protocols, list_ports,svc_tk_val_input)
svc_tk_val_input_permutation = [ ]
svc_tk_val_input_permutation = build_svc_tk_val_input.build_svc_tk_val_permutation(svc_tk_val_input, svc_tk_val_input_permutation)
svc_tk_val_input_permutation_2 = [ ]
if len(list_ports)>2:
svc_tk_val_input_permutation_2 =
build_svc_tk_val_input.build_svc_tk_val_permutation_with_len(svc_tk_val_input, svc_tk_val_input_permutation,2)
def build_svc_tk_val(list_protocols, list_ports,svc_tk_val_input):
for protocol in list_protocols:
for port in list_ports:
ppp_item = port+"/"+protocol
print(ppp_item)
# Token that we want
svc_tk_val_input.append(ppp_item)
return svc_tk_val_input
def build_svc_tk_val_permutation(svc_tk_val_input,svc_tk_val_input_permutation):
svc_tk_val_permutation = permutations(svc_tk_val_input)
for svc_tk_id_item_permutation in list(svc_tk_val_permutation):
#print(f"Combination {svc_tk_id_item_permutation}")
svc_tk_val_input_permutation.append(svc_tk_id_item_permutation)
return svc_tk_val_input_permutation
def build_svc_tk_val_permutation_with_len(svc_tk_val_input,svc_tk_val_input_permutation,permutation_len):
svc_tk_val_permutation = permutations(svc_tk_val_input,permutation_len)
for svc_tk_id_item_permutation in list(svc_tk_val_permutation):
#print(f"Combination {svc_tk_id_item_permutation}")
svc_tk_val_input_permutation.append(svc_tk_id_item_permutation)
return svc_tk_val_input_permutation