LowFile-scopePython Plug & play

Fix variable shadowing in nested loops

Use distinct variable names across scopes; never reuse the outer loop variable in inner loops or comprehensions.

Why this matters

Shadowing hides bugs and makes code hard to reason about.

Side-by-side examples engineers can pattern-match during review.

Avoid

for i in range(3):
    for i in range(2):
        pass  # shadows outer i

Prefer

for i in range(3):
    for j in range(2):
        pass

Bad

[i for i in items for i in i.children]

Good

[(p, c) for p in items for c in p.children]

From the same buckets as this rule.

Critical
Avoid Empty Methods
Detect methods that have an empty body. If a method is empty, ensure that a comment is present explaining why it remains unimplemented.
maintainabilityreadability-refactor
Critical
Avoid equality operators in loop termination conditions
Check if loops use equality operators (== or !=) in termination conditions. These can lead to infinite loops if the condition is never met exactly. Instead, use relational operators like < or > for safer loop termination.
error-handlingreadability-refactor
Critical
Avoid Equality Operators in Loop Termination Conditions
Ensure that relational operators (`<`, `>`) are used instead of equality operators (`==`, `!=`) in loop termination conditions.
readability-refactor