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## 环境
* 操作系统: 如Windows 10
* Anaconda版本: 如Anaconda 18.12 Python 2.7 64位
* vn.py版本: 1。9
## Issue类型
三选一：Enhancement
## 预期程序行为
使用tqDATAservice下载数据的时候，tqAPI中数据字典data每次下载都会增加4700k左右占用内存。
解决方法：在v…
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tqsdk 0.8.8; 天勤客户端0.9.4
订阅日线klines=api.get_kline_serial(symbol, 24 * 60 * 60)
获取quote=api.get_quote(symbol)
指定TqBacktest的start_dt为某个datetime,比如datetime(2018,9,4)
开始回测
api.wait_update()后等来的前两个quot…
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This is just to explain my thoughts on refactoring freqtradebot.py file, it is becoming too fat.
The way I see different categories of its functionalities:
## Orders
Think of it as an API, the …
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d-lines are written to, and deleted from, the datastore by the `/dline` and `/undline` commands. Expiration is handled by `CheckIP`, which currently doesn't know how to modify the datastore, only the …
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## Code for reproducing the scenario
```python
if (not since_ms and self._pairs_last_refresh_time.get(pair, 0) + interval_in_sec >= arrow.utcnow().timestamp):
data = self.klines[pair]
logger.d…
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The save files wich are saved by save_historic_klines_csv have a wrong time format in the files.
The file contains the following line(s):
, 2e-05, 2e-05, 2e-05, 2e-05, 53.0
The line 262 in save…
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Regarding the XChange API, we lacks of some interfaces to fetch chart history ( ticker data ) on differents timeframes.
Some exchanges provide this kind of data. As example Bittrex provides chart d…
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I don't know if this is a known issue or not, but when pulling historical prices (via C_ARR_OHLCV method) the prices are way off from the actual exchange requested. For example, when I utilize...
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Hi M. Korf,
That was a big update to stream line your APIs. Keep up the great work. I'll send a donation as soon as I can for your great work. The issue with the update is the "subscribe" to any of t…
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I am using the chart method. Maybe I'm subscribing too many in one go so I need to throttle them somehow.
In any case do you might need to add some error handling when handling callback as its pas…