小编Ksh*_*j G的帖子

我有一个 CSV，可以生成以下格式的数据框

--------------------------------------------------------------
|Date       | Fund | TradeGroup | LongShort | Alpha | Details|
--------------------------------------------------------------
|2018-05-22 |A     | TGG-A      | Long      | 3.99  | Misc   |
|2018-05-22 |A     | TGG-B      | Long      | 4.99  | Misc   |
|2018-05-22 |B     | TGG-A      | Long      | 5.99  | Misc   |
|2018-05-22 |B     | TGG-B      | Short     | 6.99  | Misc   |
|2018-05-22 |C     | TGG-A      | Long      | 1.99  | Misc   |
|2018-05-22 |C     | TGG-B      | Long      | 5.29  | Misc …

我跟着Celery(Django)的第一步,试图在后台运行一个繁重的过程.我安装了RabbitMQ服务器.但是,当我尝试时, celery -A my_app worker -l info它会引发以下错误

File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 678, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "c:\anaconda3\lib\site-packages\celery\concurrency\prefork.py", line 
18, in <module>
from celery.concurrency.base import BasePool
File "c:\anaconda3\lib\site-packages\celery\concurrency\base.py", line 15, 
in <module>
from celery.utils import timer2
File "c:\anaconda3\lib\site-packages\celery\utils\timer2.py", line 16, in 
<module>
from kombu.asynchronous.timer import Entry …

我有两行看起来像这样，

------------------------------
DealName | Target | Acquirer |
-----------------------------
ABC-XYZ  | ABC    | None     |
------------------------------
ABC-XYZ  | None   | XYZ      |
------------------------------

我希望将它们合并为一个：

------------------------------
DealName | Target | Acquirer |
-----------------------------
ABC-XYZ  | ABC    | XYZ      |
------------------------------

不确定如何在Pandas中完成此操作。任何指针将不胜感激！提前致谢

我有以下格式的查询，

DROP TABLE X; CREATE TEMPORARY TABLE IF NOT EXISTS X (SELECT * FROM TABLE); SELECT A,B,C FROM X;

但是，如果我使用 mysql 连接器在 Python 中运行它。我收到以下消息，'No result set to fetch from'。我的理解是它只执行第一个DROP TABLE X;并返回。还有其他方法可以实现这一目标吗？我也尝试过使用multi=True，但也没有用。提前致谢