import os
import pandas as pd
import numpy as np
import dolphindb as ddb
import dolphindb.settings as keys
# 连接到DolphinDB服务器
s= ddb.session()
s.connect("localhost", 8848, "admin", "123456")
db_path = "F:/DolphinDB/Data"
if s.existsDatabase(db_path):
s.dropDatabase(db_path)
months=np.array(pd.date_range(start='2012-01', end='2012-10', freq="M"), dtype="datetime64[M]")
# years = np.array(pd.date_range(start='2010',end='2030',freq='Y'),dtype='datetime64[Y]')
db = s.database(dbName='mydb',partitionType=keys.VALUE,partitions=months,dbPath=db_path)
---------------------------------------------------------------------------
RuntimeError Traceback (most recent call last)
in
17 # years = np.array(pd.date_range(start='2010',end='2030',freq='Y'),dtype='datetime64[Y]')
18
---> 19 db = s.database(dbName='mydb',partitionType=keys.VALUE,partitions=months,dbPath=db_path)
c:\Users\dyccolin\anaconda3\lib\site-packages\dolphindb\session.py in database(self, dbName, partitionType, partitions, dbPath, engine, atomic, chunkGranularity)
891 dbstr+=")"
892
--> 893 self.run(dbstr)
894 return Database(dbName=dbName, s=self)
895
c:\Users\dyccolin\anaconda3\lib\site-packages\dolphindb\session.py in run(self, script, *args, **kwargs)
451 if "fetchSize" in kwargs.keys():
452 return BlockReader(self.cpp.runBlock(script, **kwargs))
--> 453 return self.cpp.run(script, *args, **kwargs)
454
455 def runFile(self, filepath:str, *args, **kwargs):
RuntimeError: in run: Server response: 'mydb = database("F:/DolphinDB/Data", 1, [2012.01M,2012.02M,2012.03M,2012.04M,2012.05M,2012.06M,2012.07M,2012.08M,2012.09M]) => To create a new database, the directory [F:/DolphinDB/Data] must be empty.' script: 'mydb=database("F:/DolphinDB/Data",1,[2012.01M,2012.02M,2012.03M,2012.04M,2012.05M,2012.06M,2012.07M,2012.08M,2012.09M])'
在使用python API官方文档说明关于创建基于VALUE分区的数据库中示例代码，一直抛错，请问应该怎么解决？是哪里出了问题？
