Merge pull request #12170 from Pierre-Sassoulas/small-performance-improvments

Small performance/readability improvments when iterating dictionnary with ``keys()``

.pre-commit-config.yaml

@@ -50,6 +50,13 @@ repos:
       additional_dependencies: ["tox>=4.9"]
 -   repo: local
     hooks:
+    - id: pylint
+      name: pylint
+      entry: pylint
+      language: system
+      types: [python]
+      args: ["-rn", "-sn", "--fail-on=I"]
+      stages: [manual]
     -   id: rst
         name: rst
         entry: rst-lint --encoding utf-8

pyproject.toml

@@ -165,6 +165,119 @@ lines-after-imports = 2
 "src/_pytest/_version.py" = ["I001"]
 "testing/python/approx.py" = ["B015"]
 
+[tool.pylint.main]
+# Maximum number of characters on a single line.
+max-line-length = 120
+disable= [
+    "abstract-method",
+    "arguments-differ",
+    "arguments-renamed",
+    "assigning-non-slot",
+    "attribute-defined-outside-init",
+    "bad-classmethod-argument",
+    "bad-mcs-method-argument",
+    "broad-exception-caught",
+    "broad-exception-raised",
+    "cell-var-from-loop",
+    "comparison-of-constants",
+    "comparison-with-callable",
+    "comparison-with-itself",
+    "condition-evals-to-constant",
+    "consider-using-dict-items",
+    "consider-using-enumerate",
+    "consider-using-from-import",
+    "consider-using-f-string",
+    "consider-using-in",
+    "consider-using-sys-exit",
+    "consider-using-ternary",
+    "consider-using-with",
+    "cyclic-import",
+    "disallowed-name",
+    "duplicate-code",
+    "eval-used",
+    "exec-used",
+    "expression-not-assigned",
+    "fixme",
+    "global-statement",
+    "implicit-str-concat",
+    "import-error",
+    "import-outside-toplevel",
+    "inconsistent-return-statements",
+    "invalid-bool-returned",
+    "invalid-name",
+    "invalid-repr-returned",
+    "invalid-str-returned",
+    "keyword-arg-before-vararg",
+    "line-too-long",
+    "method-hidden",
+    "misplaced-bare-raise",
+    "missing-docstring",
+    "missing-timeout",
+    "multiple-statements",
+    "no-else-break",
+    "no-else-continue",
+    "no-else-raise",
+    "no-else-return",
+    "no-member",
+    "no-name-in-module",
+    "no-self-argument",
+    "not-an-iterable",
+    "not-callable",
+    "pointless-exception-statement",
+    "pointless-statement",
+    "pointless-string-statement",
+    "protected-access",
+    "raise-missing-from",
+    "redefined-argument-from-local",
+    "redefined-builtin",
+    "redefined-outer-name",
+    "reimported",
+    "simplifiable-condition",
+    "simplifiable-if-expression",
+    "singleton-comparison",
+    "superfluous-parens",
+    "super-init-not-called",
+    "too-few-public-methods",
+    "too-many-ancestors",
+    "too-many-arguments",
+    "too-many-branches",
+    "too-many-function-args",
+    "too-many-instance-attributes",
+    "too-many-lines",
+    "too-many-locals",
+    "too-many-nested-blocks",
+    "too-many-public-methods",
+    "too-many-return-statements",
+    "too-many-statements",
+    "try-except-raise",
+    "typevar-name-incorrect-variance",
+    "unbalanced-tuple-unpacking",
+    "undefined-loop-variable",
+    "undefined-variable",
+    "unexpected-keyword-arg",
+    "unidiomatic-typecheck",
+    "unnecessary-comprehension",
+    "unnecessary-dunder-call",
+    "unnecessary-lambda",
+    "unnecessary-lambda-assignment",
+    "unpacking-non-sequence",
+    "unspecified-encoding",
+    "unsubscriptable-object",
+    "unused-argument",
+    "unused-import",
+    "unused-variable",
+    "used-before-assignment",
+    "use-dict-literal",
+    "use-implicit-booleaness-not-comparison",
+    "use-implicit-booleaness-not-len",
+    "useless-else-on-loop",
+    "useless-import-alias",
+    "useless-return",
+    "use-maxsplit-arg",
+    "using-constant-test",
+    "wrong-import-order",
+]
+
 [tool.check-wheel-contents]
 # check-wheel-contents is executed by the build-and-inspect-python-package action.
 # W009: Wheel contains multiple toplevel library entries

src/_pytest/junitxml.py

@@ -143,7 +143,7 @@ class _NodeReporter:
         # Filter out attributes not permitted by this test family.
         # Including custom attributes because they are not valid here.
         temp_attrs = {}
-        for key in self.attrs.keys():
+        for key in self.attrs:
             if key in families[self.family]["testcase"]:
                 temp_attrs[key] = self.attrs[key]
         self.attrs = temp_attrs

src/_pytest/terminal.py

@@ -1267,7 +1267,7 @@ class TerminalReporter:
 
     def _set_main_color(self) -> None:
         unknown_types: List[str] = []
-        for found_type in self.stats.keys():
+        for found_type in self.stats:
             if found_type:  # setup/teardown reports have an empty key, ignore them
                 if found_type not in KNOWN_TYPES and found_type not in unknown_types:
                     unknown_types.append(found_type)