hisdict = ContextInfo.get_history_data(ContextInfo.line1,'1d','close',dividend_type=1)
sp12=np.array(hisdict)
ema_list=talib.EMA(sp12,timeperiod=12)
print(ema_list)
【2021-10-22 15:00:39.172】 start trading mode
【2021-10-22 15:00:39.172】 0D:\python\EMA.py_SH00030064Exception:real is not double
【2021-10-22 15:00:39.173】 Traceback (most recent call last):
File "D:\bin.x64\lib\site-packages\talib_init_.py", line 20, in wrapper
StopIteration
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "", line 23, in handlebar
File "D:\bin.x64\lib\site-packages\talib_init_.py", line 24, in wrapper
File "_func.pxi", line 7076, in talib._ta_lib.EMA
Exception: real is not double
数据类型错误，检查一下histdict是什么类型数据，sp12数据是否符合EMA参数传递要求，可以输出一下看看，print(sp12)。