交易品种只能显示600051，不能显示其它品种

[beolee]

在anaconda2环境下，直接运行main.py，运行过程中出现以下问题：
2018-12-03 08:54:52,953 connectionpool.py[line:396] DEBUG http://quotes.money.16
3.com:80 "GET /service/chddata.html?code=0600051&start=20000101&end=20181203 HTT
P/1.1" 200 None
str(Exception): <type 'exceptions.Exception'>
str(e): 'module' object has no attribute '_strptime'
repr(e): AttributeError("'module' object has no attribute '_strptime'",)
e.message: 'module' object has no attribute '_strptime'
traceback.print_exc():
Traceback (most recent call last):
File "main.py", line 110, in getHistory
d=datetime.datetime.strptime(dates,dataformate)
AttributeError: 'module' object has no attribute '_strptime'
traceback.format_exc():
Traceback (most recent call last):
File "main.py", line 110, in getHistory
d=datetime.datetime.strptime(dates,dataformate)
AttributeError: 'module' object has no attribute '_strptime'
执行完程序后，打开mt4软件，可以看到交易品种中只显示了一个品种600051，其它品种均不能显示。打开交易品种子窗口，可以看到mystock目录下，只有600051这个品种显示是激活状态，其它品种均为灰色。

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