Fix issues reported by pylint

And silence the self-use warning: Tatsu requires it this way

app/hlds/definitions.py

@@ -1,13 +1,13 @@
 # Import this class to load the standard HLDS definitions
 
 from os import path
-import itertools
 from .parser import parse_all_directory
 
 
-__all__ = ["definitions"]
+__all__ = ["location_definitions"]
 
 # TODO Use proper way to get resources, see https://stackoverflow.com/a/10935674
-data_dir = path.join(path.dirname(__file__), "..", "..", "data")
+DATA_DIR = path.join(path.dirname(__file__), "..", "..", "data")
 
-location_definitions = parse_all_directory(data_dir)
+# pylint: disable=invalid-name
+location_definitions = parse_all_directory(DATA_DIR)

app/hlds/models.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# pylint: disable=too-few-public-methods
 
 from typing import List
 
@@ -73,7 +74,13 @@ class Location:
         self.dishes: List[Dish] = dishes
 
     def __str__(self):
-        return "============================\n{0.id}: {0.name}\n============================\n\n{1}".format(
+        return (
+            "============================\n"
+            "{0.id}: {0.name}\n"
+            "============================\n"
+            "\n"
+            "{1}"
+        ).format(
             self,
-            "\n\n".join(map(str, self.dishes))
+            "\n".join(map(str, self.dishes))
         )

app/hlds/parser.py

@@ -1,11 +1,10 @@
 #!/usr/bin/env python3
 
 from glob import glob
-from os import path, walk
-from tatsu import parse as tatsu_parse
+from os import path
 import itertools
+from tatsu import parse as tatsu_parse
 from .models import Location, Choice, Option, Dish
-import operator
 
 
 # TODO Use proper way to get resources, see https://stackoverflow.com/a/10935674
@@ -17,6 +16,7 @@ def filter_instance(cls, iterable):
     return [item for item in iterable if isinstance(item, cls)]
 
 
+# pylint: disable=no-self-use
 class HldsSemanticActions:
     def location(self, ast):
         choices = {choice.id: choice for choice in filter_instance(Choice, ast["items_"])}
@@ -53,10 +53,7 @@ class HldsSemanticActions:
         )
 
     def indent_choice_block(self, ast):
-        if ast["kind"] == "declaration":
-            return self.choice_block(ast)
-        else:
-            return ast
+        return self.choice_block(ast) if ast["kind"] == "declaration" else ast
 
     def indent_choice_entry(self, ast):
         return Option(
@@ -84,8 +81,8 @@ def parse(menu):
 
 
 def parse_file(filename):
-    with open(filename, "r") as fh:
-        return parse(fh.read())
+    with open(filename, "r") as file_handle:
+        return parse(file_handle.read())
 
 
 def parse_files(files):

parse_hlds.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python3
 
-import json
 from tatsu.util import asjson
 from app.hlds.parser import parse_files