Crate typewriter_python 

typewriter-python

Python Pydantic v2 / dataclass emitter for the typewriter type sync SDK. Generates .py files with Pydantic BaseModel classes.

Type Mappings

Rust Type	Python Type
String	str
bool	bool
u8, u16, u32, u64, i8, i16, i32, i64	int
f32, f64	float
Uuid	UUID
DateTime<Utc>	datetime
Option<T>	Optional[T] = None
Vec<T>	list[T]
HashMap<K, V>	dict[K, V]
Custom struct/enum	Class reference

Configuration

In typewriter.toml:

[python]
output_dir = "./generated/python"
file_style = "snake_case"   # snake_case (default), kebab-case, or PascalCase
pydantic_v2 = true          # Use Pydantic v2 (default: true)
use_dataclass = false       # Use @dataclass instead of BaseModel

Example

Rust Input:

#[derive(TypeWriter)]
#[sync_to(python)]
pub struct User {
    pub id: String,
    pub email: String,
    pub age: Option<u32>,
}

Generated Python:

from pydantic import BaseModel
from typing import Optional


class User(BaseModel):
    id: str
    email: str
    age: Optional[int] = None

Structs

PythonMapper

Python language mapper.