chore(refactor):

- Added proper type hinting (checked with mypy).
- Refactored some methods/functions to remove redundant control flow without changing the expected/initial behaviour of those methods.
- Refactored Nmap classes to use a proper inheritance hierarchy. This also allowed for better typing. All this was implemented without changing the initial/default behaviour of those classes in any way.

Author: Akindotcome

nmap3/__init__.py

@@ -1,23 +1,23 @@
 #  __init__.py
-#  
+#
 #  Copyright 2020 Wangolo Joel <wangolo@ldap.testlumiotic.com>
-#  
+#
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
 #  the Free Software Foundation; either version 2 of the License, or
 #  (at your option) any later version.
-#  
+#
 #  This program is distributed in the hope that it will be useful,
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  
+#
 #  You should have received a copy of the GNU General Public License
 #  along with this program; if not, write to the Free Software
 #  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 #  MA 02110-1301, USA.
-#  
-#  
+#
+#
 
 from .nmap3 import *  # noqa
 from .nmap3 import __author__  # noqa

nmap3/exceptions.py

@@ -1,43 +1,47 @@
 #  nmap3.py
-#  
+#
 #  Copyright 2019 Wangolo Joel <wangolo@ldap.testlumiotic.com>
-#  
+#
 #  This program is free software; you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by
 #  the Free Software Foundation; either version 2 of the License, or
 #  (at your option) any later version.
-#  
+#
 #  This program is distributed in the hope that it will be useful,
 #  but WITHOUT ANY WARRANTY; without even the implied warranty of
 #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 #  GNU General Public License for more details.
-#  
+#
 #  You should have received a copy of the GNU General Public License
 #  along with this program; if not, write to the Free Software
 #  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 #  MA 02110-1301, USA.
-#  
+#
+
+__author__ = "Wangolo Joel (inquiry@nmapper.com)"
+__version__ = "1.9.3"
+__last_modification__ = "Jun/06/2025"
+
+import typing
 
-__author__ = 'Wangolo Joel (inquiry@nmapper.com)'
-__version__ = '1.9.3'
-__last_modification__ = 'Jun/06/2025'
 
 class NmapNotInstalledError(Exception):
     """Exception raised when nmap is not installed"""
-    
-    def __init__(self, path=""):
+
+    def __init__(self, path: typing.Optional[str] = None):
         self.message = f"Nmap is either not installed or we couldn't locate \
 nmap path. Please ensure nmap is installed and provide right path string. \n\
 Provided: *{path if path else 'Not provided'}*"
         super().__init__(self.message)
-        
+
+
 class NmapXMLParserError(Exception):
     """Exception raised when we can't parse the output"""
-    
-    def __init__(self, message="Unable to parse xml output"):
-        self.message = message 
+
+    def __init__(self, message: str = "Unable to parse xml output"):
+        self.message = message
         super().__init__(message)
 
+
 class NmapExecutionError(Exception):
     """Exception raised when en error occurred during nmap call"""
-