LevelDB database adapter for vn.py quant trading framework.
Project description
VeighNa框架的LevelDB数据库接口
说明
基于plyvel开发的LevelDB数据库接口。
对于不同操作系统需要安装不通版本的plyvel。对于linux与windows会自动安装适配的plyvel与plyvel-win32。
对于macox操作系统,需要手动下载源码进行安装,并在安装前将源码setup.py中
if platform.system() == 'Darwin':
extra_compile_args += ['-stdlib=libc++']
修改为
if platform.system() == 'Darwin':
extra_compile_args = ['-Wall', '-g', '-x', 'c++', '-std=c++11', '-fno-rtti']
再运行
python -m pip install .
进行手动安装。方法参考自[https://github.com/wbolster/plyvel/issues/114]。
使用
在VeighNa中使用LevelDB时,需要在全局配置中填写以下字段信息:
| 名称 | 含义 | 必填 | 举例 |
|---|---|---|---|
| database.name | 名称 | 是 | leveldb |
| database.database | 实例 | 是 | vnpy_data |
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