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ECO-CMP-PY-001

Name: String concatenation in loops

Category: CMP

Family: PY

Primary layer: code

System layers: code

Description

Repeated string concatenation in a loop increases allocations and CPU.

Impact

  • confidence: 0.7
  • notes: Most visible in tight loops / hot paths.
  • type: cpu

Detection

  • languages:
  • python
  • method: ast

Remediation

  • guidance: Use list accumulation + join(), or StringIO.
  • tradeoffs: Slightly more verbose.

Pattern examples

No pattern examples provided.

Remediation examples

No remediation examples provided.