如何按字典顺序排序文件路径？ 蟒蛇

Question

I need to sort a list of file paths into lexicographic order such as the output is sorted like this:

C:\Test\Project1\Example\test1.txt   
C:\Test\Project1\Example\test2.txt   
C:\Test\Project1\Example\Sub\meee.txt       
C:\Test\Project1\Example\Sub\test1.txt    
C:\Test\Project1\Example\Sub\youu.txt   
C:\Test\Project1\Example\Zzz\zzz.py

When I sort it naturally I receive C:\\Test\\Project1\\Example\\Sub\\meee.txt before C:\\Test\\Project1\\Example\\test1.txt and do not want that.

Answer 1

You can use sorted with a custom key which gives priority to files in the root directory:

L = [r'C:\Test\Project1\Example\test1.txt', r'C:\Test\Project1\Example\test2.txt',
     r'C:\Test\Project1\Example\Sub\meee.txt', r'C:\Test\Project1\Example\Sub\test1.txt',   
     r'C:\Test\Project1\Example\Sub\youu.txt', r'C:\Test\Project1\Example\Zzz\zzz.py']

def sort_key(x):
    splits = x.split('\\')[4:]
    return len(splits), splits

res = sorted(L, key=sort_key)

['C:\\Test\\Project1\\Example\\test1.txt',
 'C:\\Test\\Project1\\Example\\test2.txt',
 'C:\\Test\\Project1\\Example\\Sub\\meee.txt',
 'C:\\Test\\Project1\\Example\\Sub\\test1.txt',
 'C:\\Test\\Project1\\Example\\Sub\\youu.txt',
 'C:\\Test\\Project1\\Example\\Zzz\\zzz.py']