Add support for applying mutability on all sections of an INI configuration

src/jcloud_config_parser/ini.py

@@ -57,10 +57,10 @@ class INIConfiguration(Configuration):
 
         configuration = cls()
         for section_name, content in parse_ini(data, comment_prefixes=comment_prefixes, quotation_marks=quotation_marks, ignore_errors=ignore_errors).items():
-            group = INIConfigurationSection(section_name)
+            section = INIConfigurationSection(section_name)
             for key, value in content.items():
-                group[key] = value
-            configuration[section_name] = group
+                section[key] = value
+            configuration[section_name] = section
 
         if default is not None:
             for section in default._config:
@@ -70,6 +70,10 @@ class INIConfiguration(Configuration):
                     if propk not in dict(configuration[section]).keys():
                         configuration[section][propk] = propv
 
+        for section in configuration._config.values():
+            if isinstance(section, INIConfigurationSection):
+                set_mutability(section, mutable)
+
         set_mutability(configuration, mutable)
 
         return configuration
@@ -88,14 +92,16 @@ class INIConfiguration(Configuration):
         return serialize_ini(self._config, separator)
 
 class INIConfigurationSection(INIConfiguration):
-    def __init__(self, name: str):
+    def __init__(self, name: str, mutable: bool = True):
         '''
         A class representing a group in an INI configuration.
 
         :param name: The name of the group.
         :type name: str
+        :param mutable: The mutability of the section
+        :type mutable: bool
         '''
-        super().__init__()
+        super().__init__(mutable = mutable)
         self._name = name
 
     @property