More pep8 fixes. A tiny bit of refactoring.

src/fenrirscreenreader/core/memoryManager.py

@@ -2,13 +2,14 @@
 # -*- coding: utf-8 -*-
 
 # Fenrir TTY screen reader
-# By Chrys, Storm Dragon, and contributers.
+# By Chrys, Storm Dragon, and contributors.
 
 import time
+
 from fenrirscreenreader.core import debug
 
 
-class MemoryManager():
+class MemoryManager:
     def __init__(self):
         self.listStorage = {}
 
@@ -21,86 +22,95 @@ class MemoryManager():
     def list_storage_valid(self, name, checkIndex=False):
         try:
             if checkIndex:
-                index = self.listStorage[name]['index']
+                index = self.listStorage[name]["index"]
                 if index == -1:
-                    return self.listStorage[name]['list'] == []
-                return self.listStorage[name]['list'][index] is not None
+                    return self.listStorage[name]["list"] == []
+                return self.listStorage[name]["list"][index] is not None
             else:
-                return isinstance(self.listStorage[name]['list'], list)
+                return isinstance(self.listStorage[name]["list"], list)
         except Exception as e:
-            self.env['runtime']['DebugManager'].write_debug_out(
-                "list_storage_valid " + str(e), debug.DebugLevel.ERROR)
+            self.env["runtime"]["DebugManager"].write_debug_out(
+                "list_storage_valid " + str(e), debug.DebugLevel.ERROR
+            )
         return False
 
     def add_value_to_first_index(self, name, value):
         if not self.list_storage_valid(name):
             return
-        if self.listStorage[name]['maxLength'] is None:
+        if self.listStorage[name]["maxLength"] is None:
             # Fallback: if maxLength is still None, apply default limit of 1000
-            self.listStorage[name]['list'] = [value] + \
-                self.listStorage[name]['list'][:999]
+            self.listStorage[name]["list"] = [value] + self.listStorage[name][
+                "list"
+            ][:999]
         else:
-            self.listStorage[name]['list'] = [
-                value] + self.listStorage[name]['list'][:self.listStorage[name]['maxLength'] - 1]
-        self.listStorage[name]['index'] = 0
+            self.listStorage[name]["list"] = [value] + self.listStorage[name][
+                "list"
+            ][: self.listStorage[name]["maxLength"] - 1]
+        self.listStorage[name]["index"] = 0
 
     def add_index_list(self, name, maxLength=1000, currList=[], curr_index=-1):
         if len(currList) != 0 and (curr_index == -1):
             curr_index = 0
         self.listStorage[name] = {
-            'list': currList,
-            'index': curr_index,
-            'maxLength': maxLength}
+            "list": currList,
+            "index": curr_index,
+            "maxLength": maxLength,
+        }
 
     def is_last_index(self, name):
         if not self.list_storage_valid(name):
             return False
-        return self.listStorage[name]['index'] == len(
-            self.listStorage[name]['list']) - 1
+        return (
+            self.listStorage[name]["index"]
+            == len(self.listStorage[name]["list"]) - 1
+        )
 
     def is_first_index(self, name):
         if not self.list_storage_valid(name):
             return False
-        return self.listStorage[name]['index'] == 0
+        return self.listStorage[name]["index"] == 0
 
     def get_next_index(self, name):
         if not self.list_storage_valid(name):
             return False
         if self.is_index_list_empty(name):
-            self.listStorage[name]['index'] = -1
+            self.listStorage[name]["index"] = -1
             return False
-        self.listStorage[name]['index'] += 1
-        if self.listStorage[name]['index'] > len(
-                self.listStorage[name]['list']) - 1:
-            self.listStorage[name]['index'] = 0
+        self.listStorage[name]["index"] += 1
+        if (
+            self.listStorage[name]["index"]
+            > len(self.listStorage[name]["list"]) - 1
+        ):
+            self.listStorage[name]["index"] = 0
         return True
 
     def set_pref_index(self, name):
         if not self.list_storage_valid(name):
             return False
         if self.is_index_list_empty(name):
-            self.listStorage[name]['index'] = -1
+            self.listStorage[name]["index"] = -1
             return False
-        self.listStorage[name]['index'] -= 1
-        if self.listStorage[name]['index'] < 0:
-            self.listStorage[name]['index'] = len(
-                self.listStorage[name]['list']) - 1
+        self.listStorage[name]["index"] -= 1
+        if self.listStorage[name]["index"] < 0:
+            self.listStorage[name]["index"] = (
+                len(self.listStorage[name]["list"]) - 1
+            )
         return True
 
     def set_first_index(self, name):
         if not self.list_storage_valid(name):
             return False
         if self.is_index_list_empty(name):
-            self.listStorage[name]['index'] = -1
+            self.listStorage[name]["index"] = -1
             return False
-        self.listStorage[name]['index'] = 0
+        self.listStorage[name]["index"] = 0
         return True
 
     def get_index_list_len(self, name):
         if not self.list_storage_valid(name):
             return 0
         if self.is_index_list_empty(name):
-            self.listStorage[name]['index'] = -1
+            self.listStorage[name]["index"] = -1
             return 0
         return len(self.listStorage[name])
 
@@ -108,50 +118,59 @@ class MemoryManager():
         if not self.list_storage_valid(name):
             return False
         if self.is_index_list_empty(name):
-            self.listStorage[name]['index'] = -1
+            self.listStorage[name]["index"] = -1
             return False
-        self.listStorage[name]['index'] = len(
-            self.listStorage[name]['list']) - 1
+        self.listStorage[name]["index"] = (
+            len(self.listStorage[name]["list"]) - 1
+        )
         return True
 
     def clear_current_index_list(self, name):
         if not self.list_storage_valid(name):
             return False
-        self.listStorage[name]['list'] = []
-        self.listStorage[name]['index'] = -1
+        self.listStorage[name]["list"] = []
+        self.listStorage[name]["index"] = -1
 
     def get_current_index(self, name):
         if not self.list_storage_valid(name):
             return False
         if self.is_index_list_empty(name):
-            self.listStorage[name]['index'] = -1
+            self.listStorage[name]["index"] = -1
             return False
         try:
-            return self.listStorage[name]['index']
+            return self.listStorage[name]["index"]
         except Exception as e:
-            self.env['runtime']['DebugManager'].write_debug_out(
-                'MemoryManager get_current_index: Error accessing index for ' + name + ': ' + str(e),
-                debug.DebugLevel.ERROR)
+            self.env["runtime"]["DebugManager"].write_debug_out(
+                "MemoryManager get_current_index: Error accessing index for "
+                + name
+                + ": "
+                + str(e),
+                debug.DebugLevel.ERROR,
+            )
             return -1
 
     def is_index_list_empty(self, name):
         if not self.list_storage_valid(name):
             return False
-        return len(self.listStorage[name]['list']) == 0
+        return len(self.listStorage[name]["list"]) == 0
 
     def get_index_list_element(self, name):
         if not self.list_storage_valid(name):
             return None
         if self.is_index_list_empty(name):
-            self.listStorage[name]['index'] = -1
+            self.listStorage[name]["index"] = -1
             return None
         curr_index = self.get_current_index(name)
         if curr_index == -1:
             return None
         try:
-            return self.listStorage[name]['list'][curr_index]
+            return self.listStorage[name]["list"][curr_index]
         except Exception as e:
-            self.env['runtime']['DebugManager'].write_debug_out(
-                'MemoryManager get_index_list_element: Error accessing element for ' + name + ': ' + str(e),
-                debug.DebugLevel.ERROR)
+            self.env["runtime"]["DebugManager"].write_debug_out(
+                "MemoryManager get_index_list_element: Error accessing element for "
+                + name
+                + ": "
+                + str(e),
+                debug.DebugLevel.ERROR,
+            )
             return None