gistfile1.txt

| Feature                      | Pydantic Handles? | mypy Handles? | Example/Note                                                                 |
|-------------------------------|-------------------|---------------|-------------------------------------------------------------------------------|
| Type coercion                | Yes               | No            | `"123"` → `123` for int fields (Pydantic). mypy only checks declared types.   |
| Nested models                | Yes               | Limited       | Pydantic validates recursively. mypy ensures type annotations are consistent. |
| Complex types (List, Dict)   | Yes               | Yes           | Both validate/ensure typing; Pydantic does runtime parsing.                   |
| Custom validation            | Yes               | No            | Pydantic: `@validator`. mypy can’t enforce custom logic.                      |
| Error reporting              | Yes               | No            | Pydantic gives structured runtime errors. mypy stops at type errors only.     |
| Serialization                | Yes               | No            | Pydantic: `.dict()`, `.json()`. mypy doesn’t handle serialization.            |
| Environment variable parsing | Yes               | No            | Pydantic: `BaseSettings`. mypy has no runtime features.                       |
| Strict types                 | Yes               | Limited       | Pydantic: `StrictInt`, etc. mypy flags type mismatches statically.            |
| Arbitrary types              | Yes               | Yes (Limited) | Pydantic: `arbitrary_types_allowed=True`. mypy can allow with `Any`.          |
| Default values               | Yes               | Yes           | Both support defaults via type hints + field definitions.                     |
| Optional / Union types       | Yes               | Yes           | Both support `Optional`/`Union`, but Pydantic also parses/validates runtime.  |
| Literal types                | Yes               | Yes           | Both handle `Literal`, but Pydantic enforces at runtime.                      |
| Generics                     | Partial           | Yes           | Pydantic has limited support; mypy supports generic type parameters fully.    |