Dataclasses: The code generator to end all code generators

Speaker

Raymond Hettinger

What are dataclasses for ?
- mutable data holder
- simplifying the process of writing the class
Comparison with Named Tuples
- dataclass
  - mutable
  - unhashable
  - more memory usage
  - more efficient
- named tuple
  - immutable
  - hashable
  - less memory usage
  - less efficient
Freezing and Ordering
- @dataclass(order=True, frozen=True)
Custom Field Specifications
- field(default_factory=list)
- field(hash=False)
- field(repr=False)
- field(compare=False)