小编Laz*_*zik的帖子

我无法使用SQLAlchemy创建单个表.

我可以通过调用来创建它,Base.metadata.create_all(engine)但随着表的数量增加,这个调用需要很长时间.

我动态创建表类,然后填充它们.

from sqlalchemy import create_engine, Column, Integer, Sequence, String, Date, Float, BIGINT
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

Base = declarative_base()

class HistoricDay():

    id = Column(Integer, Sequence('id_seq'), primary_key=True)
    #  Date, Open, High, Low, Close, Volume, Adj Close
    date = Column(Date)
    open = Column(Float)
    high = Column(Float)
    low = Column(Float)
    close = Column(Float)
    volume = Column(BIGINT)
    adjClose = Column(Float)

    def __init__(self, date, open, high, low, close, volume, adjClose):
        self.date = date
        self.open = open
        self.high …

我为python2.7安装并配置了mod_wsgi,但是现在我还想为py3安装mod_wsgi

我在ubuntu 12.04我的apache conf文件对于py2.7看起来像这样:

<Directory /var/www/vhosts/my_web>
    WSGIProcessGroup my_web
    WSGIApplicationGroup %{GLOBAL}
    Order deny,allow
    Allow from all
</Directory>

现在我想为python3安装mod_wsgi.

我想我必须做apt-get install libapache2-mod-wsgi-py3

但我找不到任何关于如何为py3配置mod_wsgi的指令.a)我可以保留mod_wsgi用于py2.7还是我需要删除它以便apache与mod_wsgi_py3一起使用？b)我需要在apache conf中包含哪些内容？

我正在获取网页的源代码,编码是cp1252.Chrome正确显示页面.

这是我的代码:

import sys
from urllib.request import urlopen
from bs4 import BeautifulSoup, UnicodeDammit
import re
import codecs

url = "http://www.sec.gov/Archives/edgar/data/1400810/000119312513211026/d515005d10q.htm"
page = urlopen(url).read()
print(page)
# A little preview :
# b'...Regulation S-T (&#167;232.405 of this chapter) during the preceding 12 months (or for such shorter period that the\nregistrant was required to submit and post such files).&nbsp;&nbsp;&nbsp;&nbsp;Yes&nbsp;&nbsp;<FONT STYLE="FONT-FAMILY:WINGDINGS">&#120;</FONT>...'

soup = BeautifulSoup(page, from_encoding="cp1252")
print(str(soup).encode('utf-8'))
# Same preview section as above
# b'...Regulation S-T (\xc2\xa7232.405 of this chapter) during the preceding 12 months …

我有15,000,000 std:6个整数的向量.

那些15M载体包含重复.重复的例子:

(4,3,2,0,4,23)
(4,3,2,0,4,23)

我需要获得一个具有相关计数的唯一序列列表.(仅存在一次的序列将具有1个计数)

在std C++中有一个算法(可以是x11)一次性完成吗？

Windows,4GB RAM,30 + GB硬盘