mcp-server-semgrep/semgrep-rules/python/lang/correctness/useless-eqeq.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
  - id: useless-eqeq
    patterns:
      - pattern-not-inside: |
          def __eq__(...):
              ...
      - pattern-not-inside: |
          def __cmp__(...):
              ...
      - pattern-not-inside: assert(...)
      - pattern-not-inside: assert ..., ...
      - pattern-not-inside: assertTrue(...)
      - pattern-not-inside: assertFalse(...)
      - pattern-either:
          - pattern: $X == $X
          - pattern: $X != $X
      - pattern-not: 1 == 1
    message: >-
      This expression is always True: `$X == $X` or `$X != $X`.
      If testing for floating point NaN, use `math.isnan($X)`,
      or `cmath.isnan($X)` if the number is complex.
    languages: [python]
    severity: INFO
    metadata:
      category: correctness
      technology:
        - python