Fixed older python compatibility

Removed annotations that required newer python version

README.md

@@ -7,7 +7,6 @@ Ufw terminal frontend based on dialog
 ## Installation
 Tufw **NEEDS** to be installed as root, because it needs to run as root and python won't load the module if it's installed as a normal user.
 
-Tufw requires python3.0 or newer.
 ```sh
 sudo python3 -m pip install tufw
 # OR
@@ -18,6 +17,8 @@ Obviously Tufw needs [`dialog`](https://invisible-island.net/dialog/), so instal
 sudo apt install dialog
 ```
 or whatever you use on your distribution.
+
+>While [vermin](https://github.com/netromdk/vermin) reports minimum python version for Tufw is 3.0, it has been tested only with python 3.5.4 and 3.10. Older versions have not been tested yet.
 # 
 ## Running
 As ufw, Tufw needs to be run as root.

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = tufw
-version = 1.1.0
+version = 1.1.1
 author = Alessandro Campolo
 author_email = [email protected]
 description = Ufw terminal frontend based on dialog

src/tufw/__init__.py

@@ -19,7 +19,7 @@ def elevate():
 def rotate(input, n=1):
 	return input[n:] + input[:n]
 
-def get_tuple_with_value(list: list[tuple], index: int, value):
+def get_tuple_with_value(list, index: int, value):
 	for t in list:
 		if t[index] == value:
 			return t
@@ -151,7 +151,8 @@ def delete_rule(d: Dialog, ufw: Firewall):
 				d.msgbox(text='No rules selected', height=6, width=30)
 			elif d.yesno(
 					title='Warning!!',
-					text=f"Are you sure you want to delete {len(response1[1])} rule{'' if len(response1[1])==1 else 's'}?",
+					text="Are you sure you want to delete {} rule{}?"\
+						.format(len(response1[1]), ('' if len(response1[1])==1 else 's')),
 					default_button='No'
 				) == d.OK:
 				d.gauge_start(text='', percent=0, title='Deleting rules...', width=60)

src/tufw/firewall.py

@@ -107,7 +107,7 @@ def get_rules(self, force_fw_on=True):
 
         return findall(r'\[\s+\d+\]\s*(.*?(?:ALLOW|DENY|LIMIT|REJECT).*?)\s*\n', rules)
 
-    def add_rule(self, insert:str, policy:str, direction:str, iface:str, routed:str, logging:str, proto:str, from_ip:str, from_port:str, to_ip:str, to_port:str) -> tuple[bool, str, str]:
+    def add_rule(self, insert:str, policy:str, direction:str, iface:str, routed:str, logging:str, proto:str, from_ip:str, from_port:str, to_ip:str, to_port:str):
         # ufw [route] [insert NUM] allow|deny|reject|limit [in|out on INTERFACE] [log|log-all] [proto protocol] [from ADDRESS [port PORT]] [to ADDRESS [port PORT]]
         cmd_rule = [self.UFW_PATH]
 
@@ -192,7 +192,7 @@ def get_internal_ip(self):
         s.connect(('10.255.255.255', 1))
         return s.getsockname()[0]
 
-    def get_known_services(self, sort_by_name=False) -> list[tuple[str,str,str,str,str]]:
+    def get_known_services(self, sort_by_name=False):
         all_serv = []
         with open('/etc/services') as f:
             lines = filter(lambda x: x and not x.startswith('#'), map(lambda x: x.strip(), f.readlines()))