Avoid duplicate keys in dictionaries

Docs > Code Analysis > Static Analysis Rules > Avoid duplicate keys in dictionaries

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Metadata

ID: python-best-practices/avoid-duplicate-keys

Language: Python

Severity: Warning

Category: Best Practices

Description

Keys in a dictionary must be unique.

Non-Compliant Code Examples

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

Compliant Code Examples

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

How to use this rule

1
2
rulesets:
  - python-best-practices     # Rules to enforce Python best practices.

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