[2018] Fixes for the latest pylint (#51)

2018/.pylintrc

@@ -206,8 +206,8 @@ min-public-methods=2
 [EXCEPTIONS]
 
 # Exceptions that will emit a warning when caught.
-overgeneral-exceptions=BaseException,
-                       Exception
+overgeneral-exceptions=builtins.BaseException,
+                       builtins.Exception
 
 
 [FORMAT]

2018/day07/day07.py

@@ -113,7 +113,7 @@ def _get_execution_time(node, base_time=0):
 def _parse_instruction(line):
     match = _INSTRUCTION_REGEX.match(line)
     if not match:
-        raise Exception('Failed to parse input')
+        raise ValueError('Failed to parse input')
 
     return (match.group(1), match.group(2))
 

2018/day09/day09.py

@@ -58,7 +58,7 @@ def remove(self):
 def _parse_instruction(instruction):
     match = _INSTRUCTION_REGEX.match(instruction)
     if not match:
-        raise Exception('Invalid instruction')
+        raise ValueError('Invalid instruction')
 
     return (int(match.group(1)), int(match.group(2)))
 

2018/day10/day10.py

@@ -115,7 +115,7 @@ def _parse_entry(input_str):
     """Parse the entry that contains the starting point and velocity."""
     match = _ENTRY_REGEX.match(input_str)
     if not match:
-        raise Exception('Invalid input string')
+        raise ValueError('Invalid input string')
 
     return LightPoint(
         Point2D(int(match.group(1)), int(match.group(2))),

2018/day12/day12.py

@@ -20,7 +20,7 @@ def _parse_input(file_content):
     list_iter = iter(file_content)
     match = _INITIAL_STATE_REGEX.match(next(list_iter))
     if not match:
-        raise Exception('Invalid initial state')
+        raise ValueError('Invalid initial state')
 
     initial_state = match.group(1)
 
@@ -30,7 +30,7 @@ def _parse_input(file_content):
     for rule in list_iter:
         match = _RULE_REGEX.match(rule)
         if not match:
-            raise Exception('Invalid rule pattern')
+            raise ValueError('Invalid rule pattern')
 
         rules.append((match.group(1), match.group(2)))
 

2018/day13/day13.py

@@ -56,7 +56,7 @@ def update_direction(self, next_track):
             # Nothing to do
             pass
         else:
-            raise Exception('Unexpected track')
+            raise ValueError('Unexpected track')
 
     def move_once(self):
         """Update the position of the cart."""
@@ -69,7 +69,7 @@ def move_once(self):
         elif self.direction == 3:
             self.cell_index -= 1
         else:
-            raise Exception('Invalid direction')
+            raise ValueError('Invalid direction')
 
     def _turn(self, delta):
         self.direction = (self.direction + delta) % len(_CART_DIRECTIONS)

2018/day15/day15.py

@@ -48,7 +48,7 @@ def __init__(self, initial_state, elf_power=3):
                         Unit(col, (row_index, col_index), elf_power))
                     row[col_index] = '.'
                 elif col not in ('#', '.'):
-                    raise Exception('Unexpected tile type')
+                    raise ValueError('Unexpected tile type')
 
     def __str__(self):
         board = [col for col in row for row in self.board]

2018/day17/day17.py

@@ -113,7 +113,7 @@ def _parse_clay(file_content):
     for line in file_content:
         match = _SPAN_REGEX.match(line)
         if not match:
-            raise Exception('Invalid line')
+            raise ValueError('Invalid line')
 
         flipped = match.group(1) == 'y'
         first = int(match.group(2))

2018/day18/day18.py

@@ -63,7 +63,7 @@ def execute_minute(self):
                             self._has_neighbors(position, '|', 1)):
                         area_copy[position] = '.'
                 else:
-                    raise Exception('Unexpected character')
+                    raise ValueError('Unexpected character')
 
         self.area = area_copy
 

2018/day20/day20.py

@@ -36,7 +36,7 @@ def __init__(self, input_str):
         current_node = current_root
 
         if input_str[current_index] != '^':
-            raise Exception('Invalid pattern')
+            raise ValueError('Invalid pattern')
 
         current_index += 1
         while current_index < len(input_str):
@@ -63,11 +63,11 @@ def __init__(self, input_str):
                 current_node = current_node.connect(TreeNode(current))
                 break
             else:
-                raise Exception('Invalid character')
+                raise ValueError('Invalid character')
             current_index += 1
 
         if root_stack:
-            raise Exception('Malformed input')
+            raise ValueError('Malformed input')
 
         self.root = current_root
 
@@ -186,7 +186,7 @@ def _get_door_type(direction):
         if direction in ('E', 'W'):
             return '|'
 
-        raise Exception('Invalid direction')
+        raise ValueError('Invalid direction')
 
     @staticmethod
     def _get_direction(direction):

2018/day22/day22.py

@@ -98,15 +98,15 @@ def _is_item_valid(self, position, item):
             # Nothing or torch
             return item in (0, 1)
 
-        raise Exception('Invalid region type')
+        raise ValueError('Invalid region type')
 
     def _get_intersecting_item(self, current_position, next_position):
         for item in range(3):
             if (self._is_item_valid(current_position, item) and
                     self._is_item_valid(next_position, item)):
                 return item
 
-        raise Exception('Invalid combination of types')
+        raise ValueError('Invalid combination of types')
 
     def _get_region_type(self, position):
         return self._get_erosion_level(position) % 3

2018/day23/day23.py

@@ -190,7 +190,7 @@ def from_string(data):
         """Create a nanobot from input data."""
         match = _POSITIONS_REGEX.match(data)
         if not match:
-            raise Exception('Invalid nanobot data')
+            raise ValueError('Invalid nanobot data')
 
         position = Point3D(
             int(match.group(1)),

2018/day24/day24.py

@@ -87,7 +87,7 @@ def parse_modifiers(self, line):
         for modifier in line.split('; '):
             match = _MODIFIER_REGEX.match(modifier)
             if not match:
-                raise Exception('Could not locate modifiers')
+                raise ValueError('Could not locate modifiers')
 
             modifier_set = None
             modifier_category = match.group(1)
@@ -96,7 +96,7 @@ def parse_modifiers(self, line):
             elif modifier_category == 'immune':
                 modifier_set = self._immunities
             else:
-                raise Exception('Unknown modifier category encountered')
+                raise ValueError('Unknown modifier category encountered')
 
             for modifier_type in match.group(2).split(', '):
                 modifier_set.add(modifier_type)
@@ -123,7 +123,7 @@ def parse(team_name, line):
         """Parse the group from the provided text."""
         group_match = _GROUP_REGEX.match(line)
         if not group_match:
-            raise Exception('Could not locate group')
+            raise ValueError('Could not locate group')
 
         group = Group(
             team_name,
@@ -228,7 +228,7 @@ def _parse_team(group_list, lines):
     """Parse the team from the provided lines of text."""
     team_match = _TEAM_REGEX.match(next(lines))
     if not team_match:
-        raise Exception('Could not locate team')
+        raise ValueError('Could not locate team')
 
     team_name = team_match.group(1)
 
@@ -253,7 +253,7 @@ def _load_groups(file_content):
         pass
 
     if team_count != 2:
-        raise Exception('Failed to find two teams')
+        raise ValueError('Failed to find two teams')
 
     return groups