python的Pattern模块

最新推荐文章于 2025-04-22 17:39:55 发布

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最新推荐文章于 2025-04-22 17:39:55 发布

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Pattern是一个用于Python编程语言的网络挖掘模块，集成了多种工具，包括数据检索（如Google、Twitter、Wikipedia API）、网页爬虫、HTML解析、文本分析（基于规则的浅析器、WordNet接口等）、聚类及分类算法（如K-means、KNN、SVM）以及数据可视化。

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pattern

Pattern is a web mining module for the Python programming language.

It bundles tools for data retrieval (Google + Twitter + Wikipedia API, web spider, HTML DOM parser), text analysis (rule-based shallow parser, WordNet interface, syntactical + semantical n-gram search algorithm, tf-idf + cosine similarity + LSA metrics), clustering and classification (k-means, KNN, SVM), and data visualization (graph networks).

The module is bundled with 30+ example scripts and 350+ unit tests.

Installation

Pattern is written for Python 2.5+ (no support for Python 3 yet). The module has no external dependencies except when using LSA in the vector module, which requires NumPy (installed by default on Mac OS X).

To install it so that the module is available in all your scripts, open a terminal and do:

> cd pattern-2.4
> python setup.py install

If you have pip, you can automatically download and install from the PyPi repository:

> pip install pattern

If none of the above works, you can make Python aware of the module in three ways:

Put the pattern subfolder in the same folder as your script.
Put the pattern subfolder in the standard location for modules so it is available to all scripts:
c:\python25\Lib\site-packages\ (Windows),
/Library/Python/2.5/site-packages/ (Mac OS X), 
/usr/lib/python2.5/site-packages/ (Unix).
Add the location of the module to sys.path in your script, before importing it:

 
      
           >>> MODULE =  
           '/users/tom/desktop/pattern' 
          
 
           >>>  
           import 
            sys;  
           if 
            MODULE  
           not 
            in 
            sys.path: sys.path.append(MODULE) 
          
 
           >>>  
           from 
            pattern.en  
           import 
            parse, Sentence 
          
 
    