inlinable-bindings
LintReports a function-local binding written once and read once whose value inlines at its read at no cost.
step-narration
step-narration reports an own-line numbered-step comment (# 1. ..., # Step 2: ...), because such a comment inside a function body usually stands in for the helper name that step never got, and it leaves the extract-to-helper decision to whoever reads the finding.
Two forms are recognized, the bare numeric-dot form # N. text and the Step-prefixed forms # Step N: text and # Step N. text (with the keyword written Step or step). An inline comment at the end of a code line stays quiet, because it annotates the line rather than narrating a procedure. A pragma comment (# type: ignore, # noqa) stays quiet too, since it carries a different meaning, and a decimal version such as # 1.2 ... matches neither form. The lint fires at every scope (module level, function body, class body, nested block) and never rewrites.
Configuration
| Key | Type | Default | Meaning |
|---|---|---|---|
enabled | bool | true | Turns the rule on or off. |
The Canonical Case
# 1. normalize input and # 2. emit the result sit at module scope above process, outside any function or class body. step-narration reports each one, because the numbered-step form triggers the lint in every scope.
# 1. normalize input
# 2. emit the result
def process(payload):
return payload.strip()More Examples
# 1. normalize whitespace sits on its own line inside process, a digit followed by . and a space. step-narration reports it with a message to extract the step into a named function, and the source is left as written, because the rule is lint-only.
# 1. normalize input sits on its own line inside the body of Processor, ahead of run. step-narration reports it, exactly as it reports a numbered-step comment inside a function, because the match reads the comment's own text and ignores the scope around it.
process narrates its statements with # 1., # 2., and # Step 3: comments on their own lines. step-narration reports one diagnostic per comment rather than one for the run, each diagnostic's range covering its own comment, because the numeric-dot form and the step-word form match independently.
No Change
# 1. normalize input sits between # fmt: off and # fmt: on inside process. step-narration reports nothing on it, because a # fmt: off block suppresses a lint diagnostic the same way it suppresses a rewrite.
No Change
# 1. trim whitespace sits at the end of the cleaned = payload.strip() line rather than on a line of its own. step-narration reports nothing, because the rule reads only a comment that occupies its own line, even though this one's text matches the numbered-step form exactly.
No Change
# noqa: F401, # type: ignore, and # pyright: ignore[reportMissingImports] sit on their own lines at the top of the module. step-narration reports nothing, because a pragma comment is a tool directive and the rule skips it, and the module is left byte for byte as written.
No Change
process carries no comments at all, so step-narration reports nothing and the source is left byte for byte as written, because the rule is lint-only and there is no numbered-step comment to report.
Related
For per-line opt-outs, the Suppression chapter covers the # prose: ignore[step-narration] directive.