Remove `BaseModel` use from all dataclass-like uses

piker/brokers/kraken/broker.py

@@ -34,7 +34,6 @@ from typing import (
 
 from bidict import bidict
 import pendulum
-# from pydantic import BaseModel
 import trio
 import tractor
 import wsproto

piker/clearing/_ems.py

@@ -26,7 +26,6 @@ import time
 from typing import AsyncIterator, Callable
 
 from bidict import bidict
-from pydantic import BaseModel
 import trio
 from trio_typing import TaskStatus
 import tractor
@@ -34,6 +33,7 @@ import tractor
 from ..log import get_logger
 from ..data._normalize import iterticks
 from ..data.feed import Feed, maybe_open_feed
+from ..data.types import Struct
 from .._daemon import maybe_spawn_brokerd
 from . import _paper_engine as paper
 from ._messages import (
@@ -304,7 +304,7 @@ class TradesRelay:
     consumers: int = 0
 
 
-class Router(BaseModel):
+class Router(Struct):
     '''
     Order router which manages and tracks per-broker dark book,
     alerts, clearing and related data feed management.
@@ -325,10 +325,6 @@ class Router(BaseModel):
     # brokername to trades-dialogues streams with ``brokerd`` actors
     relays: dict[str, TradesRelay] = {}
 
-    class Config:
-        arbitrary_types_allowed = True
-        underscore_attrs_are_private = False
-
     def get_dark_book(
         self,
         brokername: str,

piker/data/feed.py

@@ -42,7 +42,6 @@ from trio_typing import TaskStatus
 import trimeter
 import tractor
 from tractor.trionics import maybe_open_context
-from pydantic import BaseModel
 import pendulum
 import numpy as np
 
@@ -59,6 +58,7 @@ from ._sharedmem import (
     ShmArray,
 )
 from .ingest import get_ingestormod
+from .types import Struct
 from ._source import (
     base_iohlc_dtype,
     Symbol,
@@ -84,7 +84,7 @@ if TYPE_CHECKING:
 log = get_logger(__name__)
 
 
-class _FeedsBus(BaseModel):
+class _FeedsBus(Struct):
     '''
     Data feeds broadcaster and persistence management.
 
@@ -100,10 +100,6 @@ class _FeedsBus(BaseModel):
           a dedicated cancel scope.
 
     '''
-    class Config:
-        arbitrary_types_allowed = True
-        underscore_attrs_are_private = False
-
     brokername: str
     nursery: trio.Nursery
     feeds: dict[str, tuple[dict, dict]] = {}

piker/ui/_event.py

@@ -21,7 +21,6 @@ Qt event proxying and processing using ``trio`` mem chans.
 from contextlib import asynccontextmanager, AsyncExitStack
 from typing import Callable
 
-from pydantic import BaseModel
 import trio
 from PyQt5 import QtCore
 from PyQt5.QtCore import QEvent, pyqtBoundSignal
@@ -30,6 +29,8 @@ from PyQt5.QtWidgets import (
     QGraphicsSceneMouseEvent as gs_mouse,
 )
 
+from ..data.types import Struct
+
 
 MOUSE_EVENTS = {
     gs_mouse.GraphicsSceneMousePress,
@@ -43,13 +44,10 @@ MOUSE_EVENTS = {
 # TODO: maybe consider some constrained ints down the road?
 # https://pydantic-docs.helpmanual.io/usage/types/#constrained-types
 
-class KeyboardMsg(BaseModel):
+class KeyboardMsg(Struct):
     '''Unpacked Qt keyboard event data.
 
     '''
-    class Config:
-        arbitrary_types_allowed = True
-
     event: QEvent
     etype: int
     key: int
@@ -57,16 +55,13 @@ class KeyboardMsg(BaseModel):
     txt: str
 
     def to_tuple(self) -> tuple:
-        return tuple(self.dict().values())
+        return tuple(self.to_dict().values())
 
 
-class MouseMsg(BaseModel):
+class MouseMsg(Struct):
     '''Unpacked Qt keyboard event data.
 
     '''
-    class Config:
-        arbitrary_types_allowed = True
-
     event: QEvent
     etype: int
     button: int

piker/ui/_orm.py

@@ -22,12 +22,9 @@ from __future__ import annotations
 from typing import (
     Optional, Generic,
     TypeVar, Callable,
-    Literal,
 )
-import enum
-import sys
 
-from pydantic import BaseModel, validator
+# from pydantic import BaseModel, validator
 from pydantic.generics import GenericModel
 from PyQt5.QtWidgets import (
     QWidget,
@@ -38,6 +35,7 @@ from ._forms import (
     # FontScaledDelegate,
     Edit,
 )
+from ..data.types import Struct
 
 
 DataType = TypeVar('DataType')
@@ -62,7 +60,7 @@ class Selection(Field[DataType], Generic[DataType]):
     options: dict[str, DataType]
     # value: DataType = None
 
-    @validator('value')  # , always=True)
+    # @validator('value')  # , always=True)
     def set_value_first(
         cls,
 
@@ -100,7 +98,7 @@ class Edit(Field[DataType], Generic[DataType]):
     widget_factory = Edit
 
 
-class AllocatorPane(BaseModel):
+class AllocatorPane(Struct):
 
     account = Selection[str](
         options=dict.fromkeys(

piker/ui/order_mode.py

@@ -27,7 +27,6 @@ import time
 from typing import Optional, Dict, Callable, Any
 import uuid
 
-from pydantic import BaseModel
 import tractor
 import trio
 from PyQt5.QtCore import Qt
@@ -41,6 +40,7 @@ from ..clearing._allocate import (
 from ._style import _font
 from ..data._source import Symbol
 from ..data.feed import Feed
+from ..data.types import Struct
 from ..log import get_logger
 from ._editors import LineEditor, ArrowEditor
 from ._lines import order_line, LevelLine
@@ -58,7 +58,7 @@ from ._forms import open_form_input_handling
 log = get_logger(__name__)
 
 
-class OrderDialog(BaseModel):
+class OrderDialog(Struct):
     '''
     Trade dialogue meta-data describing the lifetime
     of an order submission to ``emsd`` from a chart.
@@ -73,10 +73,6 @@ class OrderDialog(BaseModel):
     msgs: dict[str, dict] = {}
     fills: Dict[str, Any] = {}
 
-    class Config:
-        arbitrary_types_allowed = True
-        underscore_attrs_are_private = False
-
 
 def on_level_change_update_next_order_info(
 
@@ -858,7 +854,9 @@ async def process_trades_and_update_ui(
             # delete level line from view
             mode.on_cancel(oid)
             broker_msg = msg['brokerd_msg']
-            log.warning(f'Order {oid} failed with:\n{pformat(broker_msg)}')
+            log.warning(
+                f'Order {oid} failed with:\n{pformat(broker_msg)}'
+            )
 
         elif resp in (
             'dark_triggered'