Pylint Checker Tracking

This page tracks the status of the Pylint checks used by PythonTA.

Async checker

• yield-inside-async-function (E1700): disabled
• not-async-context-manager (E1701): disabled

Basic checker

• init-is-generator (E0100): disabled
• return-in-init (E0101): good
• function-redefined (E0102): good
• not-in-loop (E0103): good
• return-outside-function (E0104): good
• yield-outside-function (E0105): disabled
• return-arg-in-generator (E0106): disabled
• nonexistent-operator (E0107): good
• duplicate-argument-name (E0108): good
• abstract-class-instantiated (E0110): disabled (though could enable if we used abc.ABCMeta)
• bad-reversed-sequence (E0111): good
• too-many-star-expressions (E0112): disabled
• invalid-star-assignment-target (E0113): disabled
• star-needs-assignment-target (E0114): disabled
• nonlocal-and-global (E0115): disabled
• continue-in-finally (E0116): disabled
• nonlocal-without-binding (E0117): disabled
• used-prior-global-declaration (E0118): disabled
• misplaced-format-function (E0119): improve message
• unreachable (W0101): good
• dangerous-default-value (W0102): good
• pointless-statement (W0104): good
• pointless-string-statement (W0105): good
• expression-not-assigned (W0106): good
• unnecessary-pass (W0107): good
• unnecessary-lambda (W0108): good
• duplicate-key (W0109): good
• assign-to-new-keyword (W0111): disabled
• useless-else-on-loop (W0120): disabled
• eval-used (W0123): good
• exec-used (W0122): good
• confusing-with-statement (W0124): good
• using-constant-test (W0125): good
• missing-parentheses-for-call-in-test (W0126): good
• self-assigning-variable (W0127): good
• redeclared-assigned-name (W0128): good
• comparison-with-callable (W0143): improve message
• lost-exception (W0150): disabled
• nan-comparison (W0177): disabled
• assert-on-tuple (W0199): good
• forgotten-debug-statement (W1515): good
• literal-comparison (R0123): good
• comparison-with-itself (R0124): good
• invalid-name (C0103): good
• disallowed-name (C0104): good (renamed from blacklisted-name in Pylint 2.8)
• empty-docstring (C0112): good
• missing-module-docstring (C0114): good
• missing-function-docstring (C0116): good
• missing-class-docstring (C0115): good
• singleton-comparison (C0121): good
• misplaced-comparison-constant (C0122): disabled
• unidiomatic-typecheck (C0123): good

Classes checker

• access-member-before-definition (E0203): good
• method-hidden (E0202): good
• no-method-argument (E0211): good
• no-self-argument (E0213): good
• invalid-slots-object (E0236): disabled
• assigning-non-slot (E0237): disabled
• invalid-slots (E0238): disabled
• inherit-non-class (E0239): good
• inconsistent-mro (E0240): disabled
• duplicate-bases (E0241): good
• class-variable-slots-conflict (E0242): disabled
• invalid-class-object (E0243): disabled
• non-iterator-returned (E0301): good
• unexpected-special-method-signature (E0302): good
• invalid-length-returned (E0303): good
• invalid-bool-returned (E0304): good
• invalid-index-returned (E0305): disabled
• invalid-repr-returned (E0306): good
• invalid-str-returned (E0307): good
• invalid-bytes-returned (E0308): disabled
• invalid-hash-returned (E0309): disabled
• invalid-length-hint-returned (E0310): disabled
• invalid-format-returned (E0311): disabled
• invalid-getnewargs-returned (E0312): disabled
• invalid-getnewargs-ex-returned (E0313): disabled
• attribute-defined-outside-init (W0201): good
• bad-staticmethod-argument (W0211): good
• protected-access (W0212): good
• no-init (W0232): disabled
• arguments-differ (W0221): good
• signature-differs (W0222): good
• abstract-method (W0223): good
• super-init-not-called (W0231): good
• non-parent-init-called (W0233): good
• useless-super-delegation (W0235): disabled
• invalid-overridden-method (W0236): disabled
• unused-private-member (W0238): disabled
• no-self-use (R0201): good
• no-classmethod-decorator (R0202): disabled
• no-staticmethod-decorator (R0203): disabled
• useless-object-inheritance (R0205): good
• property-with-parameters (R0206): disabled
• bad-classmethod-argument (C0202): disabled
• bad-mcs-method-argument (C0203): disabled
• bad-mcs-classmethod-argument (C0204): disabled
• single-string-used-for-slots (C0205): disabled
• method-check-failed (F0202): disabled

Design checker

• too-many-ancestors (R0901): disabled
• too-many-instance-attributes (R0902): good
• too-few-public-methods (R0903): disabled
• too-many-public-methods (R0904): disabled
• too-many-return-statements (R0911): disabled
• too-many-branches (R0912): good
• too-many-arguments (R0913): good
• too-many-locals (R0914): good
• too-many-statements (R0915): good
• too-many-boolean-expressions (R0916): good

Exceptions checker

• bad-except-order (E0701): good
• raising-bad-type (E0702): good
• bad-exception-context (E0703): disabled
• misplaced-bare-raise (E0704): good
• raise-missing-from (W0707): disabled
• raising-non-exception (E0710): good
• notimplemented-raised (E0711): good
• catching-non-exception (E0712): good
• bare-except (W0702): good
• broad-except (W0703): good
• duplicate-except (W0705): good
• try-except-raise (W0706): good
• binary-op-exception (W0711): good
• raising-format-tuple (W0715): good
• wrong-exception-operation (W0716): good

Format checker

• unnecessary-semicolon (W0301): good
• bad-indentation (W0311): good
• mixed-indentation (W0312): good (removed in pylint 2.6)
• line-too-long (C0301): good
• too-many-lines (C0302): good
• trailing-whitespace (C0303): good
• missing-final-newline (C0304): good
• multiple-statements (C0321): good
• superfluous-parens (C0325): good
• bad-whitespace (C0326): good (removed in pylint 2.6)
• mixed-line-endings (C0327): disabled
• unexpected-line-ending-format (C0328): disabled
• bad-continuation (C0330): good (removed in pylint 2.6)

Imports checker

• import-error (E0401): good
• relative-beyond-top-level (E0402): disabled
• wildcard-import (W0401): good
• deprecated-module (W0402): disabled
• reimported (W0404): good
• import-self (W0406): good
• preferred-module (W0407): disabled
• misplaced-future (W0410): good
• cyclic-import (R0401): good
• consider-using-from-import (R0402): good
• multiple-imports (C0410): good
• wrong-import-order (C0411): good
• ungrouped-imports (C0412): good
• wrong-import-position (C0413): good
• useless-import-alias (C0414): good
• import-outside-toplevel (C0415): good

Logging checker

• logging-unsupported-format (E1200): disabled
• logging-format-truncated (E1201): disabled
• logging-too-many-args (E1205): disabled
• logging-too-few-args (E1206): disabled
• logging-not-lazy (W1201): disabled
• logging-format-interpolation (W1202): disabled

Miscellaneous checker

• fixme (W0511): good
• use-symbolic-message-instead (I0023): disabled

Newstyle checker

• bad-super-call (E1003): good

Refactoring checker

• consider-merging-isinstance (R1701): good
• too-many-nested-blocks (R1702): good
• simplifiable-if-statement (R1703): disabled
• redefined-argument-from-local (R1704): good
• no-else-return (R1705): good
• consider-using-ternary (R1706): disabled
• trailing-comma-tuple (R1707): good
• stop-iteration-return (R1708): disabled
• simplify-boolean-expression (R1709): disabled
• inconsistent-return-statements (R1710): good
• useless-return (R1711): disabled
• consider-swap-variables (R1712): good
• consider-using-join (R1713): good
• consider-using-in (R1714): good
• consider-using-get (R1715): good
• chained-comparison (R1716): good
• consider-using-dict-comprehension (R1717): disabled
• consider-using-set-comprehension (R1718): disabled
• simplifiable-if-expression (R1719): disabled
• consider-using-sys-exit (R1722): disabled
• no-else-raise (R1720): good
• unnecessary-comprehension (R1721): improve message
• no-else-break (R1723): good
• no-else-continue (R1724): good
• super-with-arguments (R1725): good
• simplifiable-condition (R1726): good
• condition-evals-to-constant (R1727): good
• consider-using-generator (R1728): disabled
• consider-using-min-builtin (R1730): disabled
• consider-using-max-builtin (R1731): disabled
• consider-using-with (R1732): good
• unnecessary-dict-index-lookup (R1733): good
• use-list-literal (R1734): good
• use-dict-literal (R1735): good
• unneeded-not (C0113): good
• consider-using-enumerate (C0200): disabled
• consider-iterating-dictionary (C0201): good
• consider-using-dict-items (C0206): disabled
• use-maxsplit-arg (C0207): disabled
• use-sequence-for-iteration (C0208): disabled
• consider-using-f-string (C0209): create
• use-implicit-booleaness-not-len (C1802): good
• use-implicit-booleaness-not-comparison (C1803): disabled

Stdlib checker

• invalid-envvar-value (E1507): disabled
• bad-open-mode (W1501): good
• boolean-datetime (W1502): disabled
• redundant-unittest-assert (W1503): disabled
• deprecated-method (W1505): disabled
• bad-thread-instantiation (W1506): disabled
• shallow-copy-environ (W1507): disabled
• invalid-envvar-default (W1508): disabled
• subprocess-popen-preexec-fn (W1509): disabled
• subprocess-run-check (W1510): disabled
• deprecated-argument (W1511): disabled
• deprecated-class (W1512): disabled
• deprecated-decorator (W1513): disabled
• unspecified-encoding (W1514): disabled

String checker

• bad-format-character (E1300): disabled
• truncated-format-string (E1301): disabled
• mixed-format-string (E1302): disabled
• format-needs-mapping (E1303): disabled
• missing-format-string-key (E1304): disabled
• too-many-format-args (E1305): good
• too-few-format-args (E1306): good
• bad-string-format-type (E1307): good
• bad-str-strip-call (E1310): good
• bad-format-string-key (W1300): disabled
• unused-format-string-key (W1301): disabled
• bad-format-string (W1302): disabled
• missing-format-argument-key (W1303): good
• unused-format-string-argument (W1304): good
• missing-format-attribute (W1306): disabled
• invalid-format-index (W1307): disabled
• f-string-without-interpolation (W1309): good
• implicit-str-concat (W1404): good
• format-combined-specification (W1305): good
• duplicate-string-formatting-argument (W1308): good
• format-string-without-interpolation (W1310): good
• anomalous-backslash-in-string (W1401): good
• anomalous-unicode-escape-in-string (W1402): good
• redundant-u-string-prefix (W1406): disabled

Typecheck checker

• no-member (E1101): good
• not-callable (E1102): good
• assignment-from-no-return (E1111): good
• no-value-for-parameter (E1120): good
• too-many-function-args (E1121): good
• unexpected-keyword-arg (E1123): good
• redundant-keyword-arg (E1124): disabled
• missing-kwoa (E1125): disabled
• invalid-sequence-index (E1126): good
• invalid-slice-index (E1127): good
• assignment-from-none (E1128): good
• not-context-manager (E1129): good
• invalid-unary-operand-type (E1130): good (note: message missing in Pylint docs, could submit PR)
• unsupported-binary-operation (E1131): good (same note as previous)
• unsupported-assignment-operation (E1137): good
• repeated-keyword (E1132): disabled
• not-an-iterable (E1133): good
• not-a-mapping (E1134): good
• unsupported-membership-test (E1135): good
• unsubscriptable-object (E1136): good
• unsupported-delete-operation (E1138): good
• invalid-metaclass (E1139): disabled
• unhashable-dict-key (E1140): good
• dict-iter-missing-items (E1141): good
• await-outside-async (E1142): disabled
• keyword-arg-before-vararg (W1113): disabled
• arguments-out-of-order (W1114): good
• non-str-assignment-to-dunder-name (W1115): disabled
• c-extension-no-member (I1101): disabled

Variables checker

• used-before-assignment (E0601): good
• undefined-variable (E0602): good
• undefined-all-variable (E0603): disabled
• invalid-all-object (E0604): disabled
• invalid-all-format (E0605): disabled
• no-name-in-module (E0611): good
• unpacking-non-sequence (E0633): good
• global-variable-undefined (W0601): disabled
• global-variable-not-assigned (W0602): disabled
• global-statement (W0603): good
• global-at-module-level (W0604): good
• unused-import (W0611): good
• unused-variable (W0612): good
• unused-argument (W0613): good
• unused-wildcard-import (W0614): disabled
• redefined-outer-name (W0621): good
• redefined-builtin (W0622): good
• redefine-in-handler (W0623): remove (it no longer seems to be checked in pylint)
• undefined-loop-variable (W0631): good
• unbalanced-tuple-unpacking (W0632): good
• cell-var-from-loop (W0640): disabled
• possibly-unused-variable (W0641): improve message (but investigate relationship with E9969)
• self-cls-assignment (W0642): good

Threading checker

• useless-with-lock (W2101): disabled

Unsupported Version checker

• using-f-string-in-unsupported-version (W1601): disabled
• using-final-decorator-in-unsupported-version (W1602): disabled