For AI agents: A markdown version of this page is available at https://docs.datadoghq.com/security/code_security/static_analysis/static_analysis_rules/python-best-practices/avoid-duplicate-keys.md. A documentation index is available at /llms.txt.

dict = {
  "key1": "key2",
  "key2": "key3",
  "key3": "key4",
  "key1": "bla"
}

dict = {
  "key1": "key2",
  "key2": "key3",
  "key3": "key4",
}

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rulesets:
  - python-best-practices     # Rules to enforce Python best practices.