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ys_base

YS 统一 SDK:契约模型(contracts)、auth 客户端与差量同步(auth)、WebSocket RPC 基类(ws)、 本地存储(store,默认 SQLite)、子系统服务骨架(server,extra)、交易网关(trade,extra,P4 收编)。

pip install ys_base            # 契约 + auth 客户端 + SQLite 存储
pip install ys_base[server]    # + FastAPI 子系统骨架
pip install ys_base[trade]     # + 交易网关(纯策略系统只装这个)

使用 uv 添加依赖:

uv add ys_base             # 契约 + auth 客户端 + SQLite 存储
uv add "ys_base[server]"   # + FastAPI 子系统骨架
uv add "ys_base[trade]"    # + 交易网关(纯策略系统只装这个)

trade extra 提供统一行情查询、健康检查与高可用快照缓存:

from ys_base.trade import (
	DefaultSnapshotFields,
	SnapshotCache,
	check_quote_service_alive,
	get_quote_by_symbol_id,
	get_quote_by_symbol_ids,
	get_statics_by_symbol_ids,
)

quotes = await get_quote_by_symbol_ids({"600000.SH", "300750.SZ"})
names = await get_quote_by_symbol_ids(["600000.SH"], fields="f57,f58")
statics = await get_statics_by_symbol_ids({"600000.SH"})
alive = await check_quote_service_alive()

cache = SnapshotCache(
	fetcher=get_quote_by_symbol_ids,
	ttl_seconds=30,
	stale_ttl_seconds=300,
)
snapshots = await cache.get(slot_key="2026-07-24T09:30:00", symbol_ids={"600000.SH"})

DefaultSnapshotFields == "f43,f58,f60",返回原始 f* 字段,并固定映射 f43 -> close、f60 -> pre_close、f58 -> name。不提供 last_price 或 pre_price 兼容字段; 可通过字符串或字段集合指定其他 fields。SnapshotCache 会合并同一时间片的并发回源, 并在短暂回源失败时使用 stale_ttl_seconds 范围内的最近快照。

刚发布的新版本若已在 PyPI 页面可见,但 uv 仍提示该版本不存在,通常是本地缓存的 PyPI Simple Index 元数据尚未更新。先清理单包缓存并从官方源重试: uv cache clean ys-base:优先清理单包缓存。 uv cache clean:单包清理无效时清理完整缓存。 使用 --default-index https://pypi.org/simple 从官方 PyPI 重新安装。 使用 --refresh 强制刷新解析。

uv cache clean ys-base
uv add "ys_base[trade]" --default-index https://pypi.org/simple --refresh

如果仍无法解析,再清理完整缓存:

uv cache clean
uv add "ys_base[trade]" --default-index https://pypi.org/simple --refresh

设计文档:ys_auth/docs/架构方案.md(v6 终版)、契约初稿.md。

Metadata

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