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主题：回测时下载数据无法下载：无法获取数据

用Python的交易员 wrote:

这里显示为0，则说明你的数据库里没有数据，注意检查symbol（代码）和vt_symbol（本地代码），不要搞错了

{
"_id" : "5dfe24a23f5c2aaad41ab101",
"close_price" : "3720.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:01:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3721.0",
"interval" : "1m",
"low_price" : "3719.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3719.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "2520",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab103",
"close_price" : "3724.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:02:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3724.0",
"interval" : "1m",
"low_price" : "3720.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3720.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "1888",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab105",
"close_price" : "3724.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:03:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3725.0",
"interval" : "1m",
"low_price" : "3723.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3724.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "720",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab107",
"close_price" : "3724.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:04:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3725.0",
"interval" : "1m",
"low_price" : "3722.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3724.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "562",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab109",
"close_price" : "3722.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:05:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3724.0",
"interval" : "1m",
"low_price" : "3722.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3724.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "328",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab10b",
"close_price" : "3722.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:06:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3724.0",
"interval" : "1m",
"low_price" : "3721.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3723.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "1340",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab10d",
"close_price" : "3725.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:07:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3725.0",
"interval" : "1m",
"low_price" : "3722.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3722.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "364",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab10f",
"close_price" : "3725.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:08:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3725.0",
"interval" : "1m",
"low_price" : "3723.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3725.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "224",
"date" : null
}
{
"_id" : "5dfe24a23f5c2aaad41ab111",
"close_price" : "3723.0",
"vt_symbol" : "rb2001.SHFE",
"datetime" : "2019-12-20T21:09:00.000Z",
"exchange" : "SHFE",
"gatewayName" : "rb2001.SHFE",
"high_price" : "3725.0",
"interval" : "1m",
"low_price" : "3723.0",
"open_Interest" : "0",
"open_interest" : "0",
"open_price" : "3724.0",
"rawData" : "rb2001.SHFE",
"symbol" : "rb2001",
"time" : "rb2001.SHFE",
"volume" : "54",
"date" : null
}

上面是几条mongodb的数据 哪里有不对？？？

主题：安装vnpy报错，求助！

用Python的交易员 wrote:

在cmd中，运行install.bat文件即可，没有任何报错输出，就说明正常安装了。
陈总，现在手动安装最容易出现readtimeout 应该是被墙

主题：回测时下载数据无法下载：无法获取数据

怎么查看回测的数据有没加载成功？就像vnpy1中那样，显示加载的数据时间范围和时间数目多少
而不是就只能看到加载了百分之多少

主题：回测时下载数据无法下载：无法获取数据

用Python的交易员 wrote:

下载，是从RQDATA的数据服务下载到本地数据库，你本地已有的情况下就不用重复下载了

mongodb的数据是自己从其他数据源获取的数据， 这部分获取和上传数据的代码是自己参照vnpy1中的 rqdata数据服务写的

意思是直接回测是吗？
换了几个策略回测，成交记录均为0，
19:19:45 开始加载历史数据
19:19:45 加载进度： [3%]
19:19:45 加载进度： [5%]
19:19:45 加载进度： [8%]
19:19:45 加载进度：# [11%]
19:19:45 加载进度：# [14%]
19:19:45 加载进度：# [16%]
19:19:45 加载进度：# [19%]
19:19:45 加载进度：## [22%]
19:19:45 加载进度：## [25%]
19:19:45 加载进度：## [27%]
19:19:45 加载进度：### [30%]
19:19:45 加载进度：### [33%]
19:19:45 加载进度：### [36%]
19:19:45 加载进度：### [38%]
19:19:45 加载进度：#### [41%]
19:19:45 加载进度：#### [44%]
19:19:45 加载进度：#### [47%]
19:19:45 加载进度：#### [49%]
19:19:45 加载进度：##### [52%]
19:19:45 加载进度：##### [55%]
19:19:45 加载进度：##### [58%]
19:19:45 加载进度：###### [60%]
19:19:45 加载进度：###### [63%]
19:19:45 加载进度：###### [66%]
19:19:45 加载进度：###### [68%]
19:19:45 加载进度：####### [71%]
19:19:45 加载进度：####### [74%]
19:19:45 加载进度：####### [77%]
19:19:45 加载进度：####### [79%]
19:19:45 加载进度：######## [82%]
19:19:45 加载进度：######## [85%]
19:19:45 加载进度：######## [88%]
19:19:45 加载进度：######### [90%]
19:19:45 加载进度：######### [93%]
19:19:45 加载进度：######### [96%]
19:19:45 加载进度：######### [99%]
19:19:45 加载进度：########## [100%]
19:19:45 历史数据加载完成，数据量：0
19:19:45 策略初始化完成
19:19:45 开始回放历史数据
19:19:45 历史数据回放结束
19:19:45 开始计算逐日盯市盈亏
19:19:45 成交记录为空，无法计算
19:19:45 开始计算策略统计指标

同样的数据和策略，在vnpy1中回测是有成交记录的 vnpy2中就没了

主题：回测时下载数据无法下载：无法获取数据

10:10:08 rb2001.SHFE-1m开始下载历史数据
10:10:08 数据下载失败，无法获取rb2001.SHFE的历史数据

mongodb数据库中是有rb2001表

主题：手动安装完vnpy2后，用mongodb可视化端studio 3T连接mongodb数据库总是连接失败

用Python的交易员 wrote:

很明显MongoDB的数据库服务进程没有启动。。。

系统服务列表中没有mongdb服务 MongoDB的data和log默认安装目录在哪里？

主题：策略回测出现如下错误

用Python的交易员 wrote:

用的是什么策略呢？

实例海归策略

主题：从数据源choice开发数据下载服务，出现如下问题

e:\EMQuantAPI_Python\python3\EmQuantAPI.py in Init(cls)
496 cls.InitSucceed = True
497 cls.apiDllPath = UtilAccess.GetLibraryPath()
--> 498 cls.quantLib = CDLL(cls.apiDllPath)
499 cls.AsynDataFunc = cls.Type_AsynDataFunc(cls.__HandleAsynData)
500

d:\Anaconda3\lib\ctypes__init.py in init__(self, name, mode, handle, use_errno, use_last_error)
354
355 if handle is None:
--> 356 self._handle = _dlopen(self._name, mode)
357 else:
358 self._handle = handle

OSError: [WinError 126] 找不到指定的模块。

主题：手动安装完vnpy2后，用mongodb可视化端studio 3T连接mongodb数据库总是连接失败

这是vnpy设置数据库为mongodb，下载数据时出现的错误：

Traceback (most recent call last):
File "d:\Anaconda3\lib\site-packages\vnpy\app\cta_backtester\engine.py", line 384, in run_downloading
database_manager.save_bar_data(data)
File "d:\Anaconda3\lib\site-packages\vnpy\trader\database\database_mongo.py", line 308, in save_bar_data
DbBarData.objects(
File "d:\Anaconda3\lib\site-packages\mongoengine\queryset\manager.py", line 37, in get
queryset = queryset_class(owner, owner._get_collection())
File "d:\Anaconda3\lib\site-packages\mongoengine\document.py", line 207, in _get_collection
db.client.is_primary:
File "d:\Anaconda3\lib\site-packages\pymongo\mongo_client.py", line 1005, in is_primary
return self._server_property('is_writable')
File "d:\Anaconda3\lib\site-packages\pymongo\mongo_client.py", line 830, in _server_property
writable_server_selector)
File "d:\Anaconda3\lib\site-packages\pymongo\topology.py", line 235, in select_server
address))
File "d:\Anaconda3\lib\site-packages\pymongo\topology.py", line 193, in select_servers
selector, server_timeout, address)
File "d:\Anaconda3\lib\site-packages\pymongo\topology.py", line 209, in _select_servers_loop
self._error_message(selector))
pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [WinError 10061] 由于目标计算机积极拒绝，无法连接。

主题：策略回测出现如下错误

Exception in thread Thread-88:
Traceback (most recent call last):
File "d:\Anaconda3\lib\threading.py", line 917, in _bootstrap_inner
self.run()
File "d:\Anaconda3\lib\threading.py", line 865, in run
self._target(*self._args, **self._kwargs)
File "d:\Anaconda3\lib\site-packages\vnpy\app\cta_backtester\engine.py", line 172, in run_backtesting
engine.run_backtesting()
File "d:\Anaconda3\lib\site-packages\vnpy\app\cta_strategy\backtesting.py", line 293, in run_backtesting
func(data)
File "d:\Anaconda3\lib\site-packages\vnpy\app\cta_strategy\backtesting.py", line 721, in new_bar
self.cross_stop_order()
File "d:\Anaconda3\lib\site-packages\vnpy\app\cta_strategy\backtesting.py", line 888, in cross_stop_order
self.active_stop_orders.pop(stop_order.stop_orderid)
KeyError: 'STOP.32735

主题：手动安装完vnpy2后，用mongodb可视化端studio 3T连接mongodb数据库总是连接失败

Connection failed.

SERVER [localhost:27017] (Type: UNKNOWN)
|_/ Connection error (MongoSocketOpenException): Exception opening socket
|__/ Socket error: Connection refused: connect

Details:
Timed out after 5000 ms while waiting to connect. Client view of cluster state is {type=UNKNOWN, servers=[{address=localhost:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketOpenException: Exception opening socket}, caused by {java.net.ConnectException: Connection refused: connect}}]

主题：手动安装完vnpy2后，用mongodb可视化端studio 3T连接mongodb数据库总是连接失败

这是为何？？

主题：重新安装vnpy2.0.8 一直不成功 怎么彻底删除vnpy？？

用Python的交易员 wrote:

用Anaconda手动安装需要更多经验，如果初学者我们不建议浪费时间自己折腾

用Anaconda3_2018_12的版本安装 没有激活不成功的问题除夕
双击安装vnpy时需要科学上网 算是安装流程走完
但是有些库出现错误没有安装成功 原因都是time out，最后是缺少什么就pip install安装 现在算是手动安装成功 用了几天还没出现问题

主题：重新安装vnpy2.0.8 一直不成功 怎么彻底删除vnpy？？

str_pythin wrote:

用Python的交易员 wrote:

如果用的VNStudio，那么直接删掉C:\vnstudio目录就行，其他环境也可以类似处理

安装Anaconda3后 python3有如下warning 根据https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#activating-an-environment这个 cmd输入python 还是这个问题
Python 3.7.4 (default, Aug 9 2019, 18:34:13) [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32

Warning:
This Python interpreter is in a conda environment, but the environment has
not been activated. Libraries may fail to load. To activate this environment
please see https://conda.io/activation

安装vnpy2时，导致python版本问题不对 安装不成功——rqdatac安装不成功（makers python version don't match the environment）
上传不了图

主题：重新安装vnpy2.0.8 一直不成功 怎么彻底删除vnpy？？

用Python的交易员 wrote:

如果用的VNStudio，那么直接删掉C:\vnstudio目录就行，其他环境也可以类似处理

安装Anaconda3后 python3有如下warning 根据https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#activating-an-environment这个 cmd输入python 还是这个问题
Python 3.7.4 (default, Aug 9 2019, 18:34:13) [MSC v.1915 64 bit (AMD64)] :: Anaconda, Inc. on win32

Warning:
This Python interpreter is in a conda environment, but the environment has
not been activated. Libraries may fail to load. To activate this environment
please see https://conda.io/activation

安装vnpy2时，导致python版本问题不对 安装不成功——rqdatac安装不成功（makers python version don't match the environment）

主题：重新安装vnpy2.0.8 一直不成功 怎么彻底删除vnpy？？

用Python的交易员 wrote:

不成功的报错是什么？放个截图

忘了截图
错误大致是：api v是1-11 PyQt5需要的是12（？？）

怎么彻底删除已经安装的vnpy

主题：重新安装vnpy2.0.8 一直不成功 怎么彻底删除vnpy？？

见标题
彻底删除后 在重新安装

主题：配置mongodb数据库出现错误，由于这个错误打不$vnTrader，怎么重新配置？

str_pythin wrote:

C:\Users\Administrator\Downloads\vnpy208\examples\vn_trader> python run.py
Traceback (most recent call last):
File "run.py", line 36, in <module>
from vnpy.app.cta_strategy import CtaStrategyApp
File "C:\Miniconda3\lib\site-packages\vnpy\app\cta_strategy__init.py", line 9, in <module>
from .engine import CtaEngine
File "C:\Miniconda3\lib\site-packages\vnpy\app\cta_strategy\engine.py", line 39, in <module>
from vnpy.trader.database import database_manager
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\init__.py", line 12, in <module>
database_manager: "BaseDatabaseManager" = init(settings=settings)
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\initialize.py", line 8, in init
return init_nosql(driver=driver, settings=settings)
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\initialize.py", line 23, in init_nosql
_database_manager = init(driver, settings=settings)
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\database_mongo.py", line 31, in init
authentication_source=authentication_source,
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 376, in connect
register_connection(alias, db, kwargs)
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 193, in register_connection kwargs)
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 86, in _get_connection_settings
_check_db_name(conn_settings['name'])
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 44, in _check_db_name
_check_name(name)
File "C:\Miniconda3\lib\site-packages\pymongo\database.py", line 52, in _check_name
"character %r" % invalid_char)
pymongo.errors.InvalidName: database names cannot contain the character '.'
PS C:\Users\Administrator\Downloads\vnpy208\examples\vn_trader>

删除.vntrader文件夹解决

主题：配置mongodb数据库出现错误，由于这个错误打不$vnTrader，怎么重新配置？

C:\Users\Administrator\Downloads\vnpy208\examples\vn_trader> python run.py
Traceback (most recent call last):
File "run.py", line 36, in <module>
from vnpy.app.cta_strategy import CtaStrategyApp
File "C:\Miniconda3\lib\site-packages\vnpy\app\cta_strategy__init.py", line 9, in <module>
from .engine import CtaEngine
File "C:\Miniconda3\lib\site-packages\vnpy\app\cta_strategy\engine.py", line 39, in <module>
from vnpy.trader.database import database_manager
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\init__.py", line 12, in <module>
database_manager: "BaseDatabaseManager" = init(settings=settings)
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\initialize.py", line 8, in init
return init_nosql(driver=driver, settings=settings)
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\initialize.py", line 23, in init_nosql
_database_manager = init(driver, settings=settings)
File "C:\Miniconda3\lib\site-packages\vnpy\trader\database\database_mongo.py", line 31, in init
authentication_source=authentication_source,
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 376, in connect
register_connection(alias, db, kwargs)
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 193, in register_connection kwargs)
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 86, in _get_connection_settings
_check_db_name(conn_settings['name'])
File "C:\Miniconda3\lib\site-packages\mongoengine\connection.py", line 44, in _check_db_name
_check_name(name)
File "C:\Miniconda3\lib\site-packages\pymongo\database.py", line 52, in _check_name
"character %r" % invalid_char)
pymongo.errors.InvalidName: database names cannot contain the character '.'
PS C:\Users\Administrator\Downloads\vnpy208\examples\vn_trader>

主题：vnpy2的rqData的自助数据$服务在哪里？

用Python的交易员 wrote:

自己写一个吧，新版本推荐大家使用数据服务，少折腾数据这些没意义的事情

数据服务在哪里？

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