OrderId = NewType('OrderId', str)
Type System & Annotations

Meaning

Creates a distinct type alias for order identifiers, providing type safety without runtime overhead.

Primary Function

Define a distinct type for order IDs to prevent mixing with plain strings.

Communicative Purpose

Introduce a domain-specific type alias for order identifiers in Python code.

Função primária

Define a distinct type for order IDs to prevent mixing with plain strings.

Propósito comunicativo

Introduce a domain-specific type alias for order identifiers in Python code.

Situações de gatilho

When you need a distinct type for order IDs to avoid mixing with other string IDs.

Contextos

Used in domain modeling, API boundaries, or wherever order identifiers are passed around.

Família do chunk

  • Python typing
  • NewType
  • type safety

Upgrade path

Consider using dataclasses or Pydantic models for richer domain models.

Tag de espaçamento: Medium-term

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