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import re

re_digits = re.compile(r‘(\d+)‘)

def embedded_numbers(s):

pieces = re_digits.split(s)               # 切成数字与非数字

pieces[1::2] = map(int, pieces[1::2])     # 将数字部分转成整数

return pieces

def sort_strings_with_embedded_numbers(alist):

return sorted(alist, key=embedded_numbers)

files = ‘12 2 56 345 12‘.split( )

new_list=sort_strings_with_embedded_numbers(files)

str=‘ ‘.join(new_list)

print(str)

import re

re_digits = re.compile(r‘(\d+)‘)

def embedded_numbers(s):

pieces = re_digits.split(s)               # 切成数字与非数字

pieces[1::2] = map(int, pieces[1::2])     # 将数字部分转成整数

return pieces

def sort_strings_with_embedded_numbers(alist):

return sorted(alist, key=embedded_numbers)

files = ‘file3.txt file11.txt file7.txt file4.txt file15.txt‘.split( )

new_list=sort_strings_with_embedded_numbers(files)

str=‘ ‘.join(new_list)

print(str)

chrfiles = [ ‘chr9.txt‘, ‘chr10.txt‘, ‘chr1.txt‘, ‘chr3.txt‘, ‘chr11.txt‘ ]

chrfiles.sort(key = lambda x:int(re.match(‘\D+(\d+)\.txt‘,x).group(1)))

chrfiles

chrfiles = [ ‘9.txt‘, ‘10.txt‘, ‘1.txt‘, ‘3.txt‘, ‘11.txt‘ ]

chrfiles.sort(key = lambda x:int(re.match(‘(\d+)\.txt‘,x).group(1)))

chrfiles

chrfiles = [ ‘9‘, ‘10‘, ‘1‘, ‘3‘, ‘11‘ ]

chrfiles.sort(key = lambda x:int(re.match(‘(\d+)‘,x).group(1)))

chrfiles

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