# code to get commonprefix
def commonprefix(m):
if not m: return ''
s1 = min(m)
s2 = max(m)
for i, c in enumerate(s1):
if c != s2[i]:
return s1[:i]
return s1
#code to get the different suffix
strList = map(str, objList)
strList = map(lambda x: x.replace('', ''), strList)
# My code to get the different suffix of each element of a list
for i in range(len(liste)):
Listelement = liste[i]["title"].tolist()
common_name = commonprefix(Listelement)
try:
strList = map(str, Listelement)
strList = map(lambda x: x.replace(common_name, ''), strList)
print(Listelement)
except:
pass
# this is how my "Listelement" variable look like
['Le Coton Coton Extra Doux Boîte 100pce - CHANEL']
['Allure Eau De Toilette Vaporisateur 50ml - CHANEL', 'Allure Eau De Toilette Vaporisateur 100ml - CHANEL']
['Allure Eau De Toilette Vaporisateur 50ml - CHANEL', 'Allure Eau De Toilette Vaporisateur 100ml - CHANEL']
['Eau De Cologne Les Exclusifs De Chanel 75ml - CHANEL', 'Eau De Cologne Les Exclusifs De Chanel 200ml - CHANEL']
['Eau De Cologne Les Exclusifs De Chanel 75ml - CHANEL', 'Eau De Cologne Les Exclusifs De Chanel 200ml - CHANEL']
大家好,我在查找产品列表的后缀时遇到了一个小问题。我得到了公共前缀函数,它为我的列表提供了正确的答案,但是当我尝试删除每个列表的每个元素的 common_prefix 时,它不起作用,你知道为什么吗? 非常感谢你
os.path.commonprefix
重新发明轮子。 解决方案
import re
import os
ls = ['Allure Eau De Toilette Vaporisateur 50ml - CHANEL', 'Allure Eau De Toilette Vaporisateur 100ml - CHANEL']
# find common prefix
pfx = os.path.commonprefix(ls)
ans = [el[len(pfx):] for el in ls]
print(ans) # ['50ml - CHANEL', '100ml - CHANEL']
#!/usr/bin/env python3
# common prefix and common suffix of a list of strings
# https://stackoverflow.com/a/6719272/10440128
# https://codereview.stackexchange.com/a/145762/205605
import itertools
def all_equal(it):
x0 = it[0]
return all(x0 == x for x in it)
def common_prefix(strings):
char_tuples = zip(*strings)
prefix_tuples = itertools.takewhile(all_equal, char_tuples)
return "".join(x[0] for x in prefix_tuples)
def common_suffix(strings):
return common_prefix(map(reversed, strings))[::-1]
strings = ["aa1zz", "aaa2zzz", "aaaa3zzzz"]
assert common_prefix(strings) == "aa"
assert common_suffix(strings) == "zz"