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As a concept, regular expressions are not unique to Python. However, the regular expression in Python still has some minor differences in actual use. This article is part of a series of articles about Python regular expressions. In the first article in this series, we will focus on how to use regular expressions in Python and highlight some of the unique features in Python. We'll cover some of the ways Python searches and locates strings. Then we talk about how to use groupings to handle me ...

Sqlobject is a Python database object relational mapping. For example, a library will wrap your database table in a Python class. Currently supports MySQL through the MYSQLDB package, supported by the PSYCOPG package postgresql,sqlite,firebird,maxdb (SAP DB), MS SQL and Sybase. Also supports the Python 2.4 version. SQLObject version 1.1.3 Fixes Http://www.aliyun.c ...

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Milk is a machine learning kit in Python. Its focus is to provide supervised classifications and several effective classification analyses: SVMs (based on LIBSVM), nn, stochastic forest economy and decision tree. It also performs feature selection. These classifications can be combined in many ways to form different classification systems. For unsupervised learning, milk supports K clustering and affinity propagation. Milk 0.4.0 new features: Parallel processing, perceptron and error-correcting output codes. Enhancements: Setting random seeds in a random forest economy, Defau ...

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The Zope default provides an FTP service, a file-based protocol. This immediately triggers a way to represent the object to the file system and reverse the mapping. In order to complete the mapping in a flexible and replaceable way, a series of interfaces can be implemented as adapters to provide a representation that the FTP Publisher understands. This chapter shows how to implement some interfaces for a custom file system representation. One thing you might be confused about: "Why do we have to write our own filesystem support?" Zope cannot provide some implementations by default ...

Introduction: It is well known that R is unparalleled in solving statistical problems. But R is slow at data speeds up to 2G, creating a solution that runs distributed algorithms in conjunction with Hadoop, but is there a team that uses solutions like python + Hadoop? R Such origins in the statistical computer package and Hadoop combination will not be a problem? The answer from the king of Frank: Because they do not understand the characteristics of R and Hadoop application scenarios, just ...

After the ZOPE3 installation is complete, you can use it to do a lot of things. Of course, there are some interesting Third-party plug-in (add-on) packages, such as http://www.aliyun.com/zixun/aggregation/22.html > relational database adapters and wiki implementations. Wikis are made up of a large number of pages and can be edited by any group or person who accesses them. These pages are connected to each other through a wiki link that passes through the name of the other wiki page ...

Tornado Web Server is a lightweight, highly scalable and non-blocking io http://www.aliyun.com/zixun/aggregation/17117.html ">" written using Python  　　Web server software, the famous Friendfeed website is built using it. Tornado is different from other mainstream Web server frameworks (mainly Python frameworks) ...

Explore cloud computing and the various cloud platforms offered by key vendors such as Amazon, Google, Microsoft® and Salesforce.com. In part 1th of this three-part series, we'll give you a typical example of an enterprise application that uses a JMS queue, and look at what will be involved in using a part of this JMS infrastructure in the cloud. ...