python之difflib模块的使用

本文介绍了如何使用Python的difflib模块进行文件差异对比,包括代码示例和生成HTML展示差异,以及在Linux环境下进行文件内容对比的方法。

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1、文件差异对比代码:

import difflib
text1 = '''  1. Beautiful is better than ugly.
   2. Explicit is better than implicit.
   3. Simple is better than complex.
   4. Complex is better than complicated.
        '''.splitlines(keepends=False)			按行分割,不保留空格,生成列表
text2 = '''  1. Beautiful is better than ugly.
       3.   Simple is better than complex.
       4. Complicated is better than complex.
       5. Flat is better than nested.
    '''.splitlines(keepends=True)				按行分割,保留空格,生成列表
d = difflib.Differ()
print(''.join(d.compare(text1,text2)))

执行结果:

- 1. Beautiful is better than ugly.+ 1. Beautiful is better than ugly.
?                                  +
- 2. Explicit is better than implicit.- 3. Simple is better than complex.?   -
+ 3.Simple is better than complex.
?                                 +
- 4. Complex is better than complicated.?          ^                     ---- ^
+ 4. Complicated is better than complex.
?         ++++ ^          
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