Files
2026-02-21 07:43:33 +01:00

78 lines
2.2 KiB
Markdown

# base
`aiomql.core.base` — Foundational base classes for data structure handling.
## Overview
Provides the `Base` and `_Base` classes that all data-model and trading classes inherit from.
`Base` offers attribute management, dictionary conversion, and filtering.
`_Base` extends it with automatic access to the MetaTrader terminal and configuration.
## Classes
### `BaseMeta`
> Metaclass that lazily initialises `config` and `mt5` on first access.
#### `_setup()`
Attaches `Config()` and `MetaTrader()` (or sync variant) to the class if not already present.
---
### `Base`
> Common base class for all data structures in aiomql.
| Attribute | Type | Description |
|-----------|------|-------------|
| `exclude` | `set[str]` | Attributes excluded from dict conversion (default: `mt5`, `config`, …) |
| `include` | `set[str]` | Attributes always included (overrides `exclude`) |
#### `__init__(**kwargs)`
Sets keyword arguments as instance attributes via `set_attributes`.
#### `set_attributes(**kwargs)`
Sets only attributes that are annotated on the class body. Logs a debug message for unknown or
non-convertible attributes.
#### `annotations` *(property)*
Merged `__annotations__` from all ancestor classes.
#### `class_vars` *(property)*
Annotated class-level attributes from the full MRO.
#### `dict` *(property)*
All instance and class attributes as a dictionary, excluding those in `exclude`.
#### `get_dict(exclude=None, include=None)`
Returns a filtered dictionary. If both `include` and `exclude` are provided, `include` takes precedence.
#### `__repr__()`
Shows up to 3 key attributes; appends `...` with the last attribute if there are more.
---
### `_Base`
> Extended base class with `MetaTrader` and `Config` integration.
Inherits from `Base` with `BaseMeta` as its metaclass.
| Attribute | Type | Default | Description |
|-----------|------|---------|-------------|
| `mt5` | `MetaTrader \| MetaTraderSync` | — | The MetaTrader interface (auto-initialised) |
| `config` | `Config` | — | The global configuration instance |
| `mode` | `Literal["async", "sync"]` | `"async"` | Determines which MetaTrader variant is used |
#### `__getstate__()`
Removes the `mt5` attribute before pickling to avoid serialization issues.