incompatibility problems may occur, upgrading is basically difficult. So far, the Pylons of reddit remains
SQLAlchemy is 0.5.3 in antique 0.9.6, which should be related to this article.
The integration of Pylons and repoze. bfg may lead to the next framework that can challenge Django's position.
Tornado web. py
Tornado (http://www.tornadoweb.org) is Facebook's open-source framework, and its philosophy is almost two extremes with Django
When accessing a website or blog, if the website provides the content rating or voting function for users, the interaction of user participation can be enhanced, it also gives users a kind of "master" intimacy, so that users can participate in the evaluation system of website content. As a result, more and more portal websites are also joining the rating or voting function. Here are nine excellent JavaScript-based rating voting plug-ins and teaching materials for your second development and use.
anytime you visit Reddit, YouTube or Facebook, you'll naturally jump to other links. Mobile is not the case, because the application is chimney-style, the switch between apps is not smooth.Developers too focusedThere is also the problem of developer concentration. According to ComScore, about 70% of independent visitors to the top 25 U.S. apps are from the big four developers-facebook, Google, Apple and Yahoo. Although the data have a variety of stat
. But these people can spend hours on websites like Facebook, YouTube, Wikipedia or Reddit. Whether you have such a situation or not, there are places worth learning.A lot of the time I just wanted to see Facebook for a little while, and I ended up staying there for hours. Why is that? This is precisely because I am not going to stay there for too long. Everything starts hard, and I find it easier to put goals down. If someone asks me if I'm going to
same time.Interval operationThe energy of an ordered set is more than that, and he can operate on the interval. For example, get all people born before 1950. We use the Zrangebyscore command to do:$ redis-cli zrangebyscore hackers-inf 19501. Alan Turing2. Claude Shannon3. Alan KayWe request that Redis return score elements between negative infinity and 1950 years (two extrema are also included).You can also delete elements within a range. For example, remove a hacker from an ordered collection
, so be sure to read more and compare to ensure the quality of your reading. I personally see a lot of good design articles in layer Vault, involving UI, UX, dynamic, mobile design, after effects and so on, and, of course, a lot of similar content sources, not listed.User assistance in the form of content dissemination helps you discover new blogs or new sites. To Hacker News or your area of interest in the Reddit type of site to see which domain name
and Twitter, for their own architecture, to abandon the use of Cassandra, instead HBase and other databases, as well as in China about the Cassandra article is less, do not know its people will not try, a variety of reasons so that before the domestic use of Cassandra not present the trend of fire.But in recent years, with its version upgrade, application practice increased, has Instagram migrated to Cassandra,facebook part of the project on Cassandra, Cassandra 2015 meeting participants more t
program is independent of each other, that is, not competing for the same feature, not waiting for each other's results , and not accessing the same storage unit , then they can execute in parallel within the processor. In a word, a non-interfering instruction can be executed in parallel.Instruction-level parallel dependent CPU technology has pipeline, multi-directive emission, superscalar, disorderly execution and extra-long instruction word.seconded: There are a lot of people on
, so the performance of the database is not as good as the ability to sort by points and update them in real-time, almost every second.Typically, for example, the leaderboard for online games, such as a Facebook game, based on the score you usually want:-List Top 100 high-score contestants-List A user's current global rankingsThese operations are a piece of cake for redis, and even if you have millions of users, there will be millions of new points per minute.The pattern is this, each time we ge
Leaderboard
You may replace username with a userid, depending on how you designed it.Getting the top 100 high-score users is simple: Zrevrange leaderboard 0 99.The global ranking of users is similar, only need: Zrank leaderboard Sort by user poll and timeA common variant pattern of the leaderboard is, like Reddit or hacker news, that the news is sorted according to a score similar to the following formula:
Score = points/ Time^alpha
refined, bring less reading anxiety. (By the way, recommend a thing, Aiderss, preliminary use, feel to subscribe to Reddit such a daily update a lot of content of the feed is very useful).2. Do you have time? Summarize the new knowledge you have received recently.In general, some of the things that I study in a period of time will always be in the mind during this time, a time gap (such as walking, eating) they will pop out, prompting me to further t
like Reddit where the score was formula the changes over time. Lpush + LTRIM is used to the add an article to a list. A Background Task Polls the list and recomputes the order of the list and Zadd is used to populate the list in the new Ord Er. This list can is retrieved very fast by even a heavily loaded site. This should is easier, the need for the polling code isn ' t elegant.
Implement expires on items. To keep a sorted list by time and us
The term "procrastination" has been very popular in recent years. It seems that everyone feels that their efficiency is not high and it is difficult to focus on what is at hand. How can we improve our work efficiency, let me tell you.
Aaron Swartz wrote a famous articleArticleCalled "HOWTO: be more productive". This article is really good. I have read it many times and I agree with the author's point of view. I have learned some of the methods mentioned by the author and applied them to my own
Efficiency of code ExecutionIn the performance tuning strategy, I said, to tune the need to find the program in the hotspot, which is called the most places, such a place, as long as you can optimize a little bit, your performance will improve quality. Here I give you three examples of the efficiency of code execution (they all come from the Internet)A first exampleefficiency of getter and setter in PHP (source Reddit)This example is relatively simple
15 begins contact with machine learning (more precisely, deep learning code, CNN)Need to see a lot of information to get started;Collected here, to see for themselves, but also to the passing of interested crossing judgment, for recreationGo directly to the link:1,http://speakerdeck.com/baojie/recent-advances-in-deep-learning-by-kevin-duh2,http://speakerdeck.com/baojie/deep-learning-an-introduction-from-the-nlp-perspective-by-kevin-duh3,http://lamda.nju.edu.cn/weixs/project/cnntricks/cnntricks.h
.
Headline Analyzer: the emotional marketing value analyzer for headlines.
WP Hide Post: allows your blog to fully visualize control.
Social Locker: contains a number of features that can make your microblog profitable.
Egg Timer: You can set the time for bookmarks to be reused.
D. Trends and ideas
portent: the hottest title generator.
Google Trends: A new way to display popular searches.
Buzzsumo: analyze the best way to execute content for a
change the look of Redis, and people will recognize that Redis is a whole new thing, its auto-scaling, fault tolerance and high availability are greatly improved, and since then it will be able to take on more critical tasks on a larger scale. Redis 3.0 marks the beginning of a new phase and a new development model. Later, a large number of new features that have been developed will no longer rush into the stable version, in fact Redis 3.0 has given up a lot of new features to ensure that users
about the current widely used RSS 1.0 specification. He is co-founder of Markdown, one of the three owners of the well-known social news site Reddit, and has created the Python Web application framework web.py ...
In July 2011, the United States federal grand jury sued Swartz for a huge amount of scholarly documentation from the JSTOR online magazine file system. Then, Swartz killed himself.
Just a text editor to open, easy to change,
test of water until they become a standard, and this time will be met by all the browser execution solution vendors.Edge expands a number of ES6 features, including: class, digital face-to-word, math, number, object, RegExp and string built-in plugins, Promises, proxies. There are also a number of features being considered: templates and subclasses. The Edge User Voice Group,asm.js has become a top 10 feature requirement supported by the developer. And Microsoft has started to support Asm.js in
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