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Project structure for Google App Engine

... datetime import logging import time from google.appengine.api import urlfetch from google.appengine.ext.webapp import template from google.appengine.api import users from google.appengine.ext import webapp from models import * class IndexHandler(webapp.RequestHandler): def get(self): date =...
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How to plot two columns of a pandas data frame using points?

...']) plt.show() # Depending on whether you use IPython or interactive mode, etc. and remember that you can access a NumPy array of the column's values with df.col_name_1.values for example. I ran into trouble using this with Pandas default plotting in the case of a column of Timestamp values with ...
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“hello, world” 起源及其他 - 创意 - 清泛网 - 专注C/C++及内核技术

“hello, world” 起源及其他学过编程语言人都笑了,在程序员心目中,hello world是一切开始,程序语言教科书第一个演示程序、WordPress第一篇示例文章(我hello world)、环境搭建成功后第一个测试… 问题提出 相传...
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卖来卖去盛大游戏真悲哀 - 资讯 - 清泛网 - 专注C/C++及内核技术

卖来卖去盛大游戏真悲哀冗长肥皂剧有人喜欢有人不喜欢,但不应该发生在科技领域,毕竟这个市场日新月异,稍不留神就容易被对手打击得万劫不复。盛大游戏私有化 冗长肥皂剧有人喜欢有人不喜欢,但不应该发生在...
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英特尔与14家车企合作 研发远程控车技术 - 资讯 - 清泛网 - 专注C/C++及内核技术

...进军汽车市场时,英特尔也加大了关于汽车行业创新研发力度。近日,网通社从英特尔中国区总经理Rupal Shah处了解到,...在谷歌、诺基亚纷纷进军汽车市场时,英特尔也加大了关于汽车行业创新研发力度。近日,网通社从...
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当当网第三季度净亏损2810万元 同比由盈转亏 - 资讯 - 清泛网 - 专注C/C++及内核技术

...比由盈转亏11月25日消息,当当网发布了截至2015年9月30日2015财年第三季度未审计财报。财报显示,当当网第三季度总净营收为23.719亿元人民币(约合3.732亿美元),同比增长22.6%;净亏损为2810万元人民币(约合440万美元),去年同期...
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访问图像和声音 · App Inventor 2 中文网

... « 返回首页 使用 App Inventor 构建应用程序可以从三种不同位置访问声音、图像和视频源: 应用程序资产 “界面设计”视图中显示标记为 媒体 源(应用程序 assets 一部分)与应用程...
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If isset $_POST

...d the ! operator in cases like this (easier to read, less chance of error, etc.) and reverse the logic... if (empty()) {/* No */} else {/* Yes */} – MrWhite Aug 1 '14 at 10:58 ...
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What do *args and **kwargs mean? [duplicate]

...to clarify how to unpack the arguments, and take care of missing arguments etc. def func(**keyword_args): #-->keyword_args is a dictionary print 'func:' print keyword_args if keyword_args.has_key('b'): print keyword_args['b'] if keyword_args.has_key('c'): print keyword_args['c'] def f...
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Mechanisms for tracking DB schema changes [closed]

...le script, update.php, and a number of files numbered 1.sql, 2.sql, 3.sql, etc. The script uses one extra table to store the current version number of the database. The N.sql files are crafted by hand, to go from version (N-1) to version N of the database. They can be used to add tables, add column...