python简单读取大文件

本文实例讲述了python简单读取大文件的方法。分享给大家供大家参考，具体如下：

Python读取大文件（GB级别）采用的办法很简单：

with open(...) as f:
 for line in f:
  <do something with line>

例如：

with open(filepath,'r') as infile:
 for line in infile:
  print line

一切都交给python解释器处理，读取效率很高，且占用资源少。

*参考链接：How to read large file, line by line in python - Stack Overflow

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