python 字符串分割问题 不分割{}内内容

[ctgucool]

如题，python 字符串分割问题
假设
str1="s1,s2,s3,{s4,s5,s6},s7,s8"
分割后是 s1 s2 s3 {s4,s5,s6} s7 s8

[指尖魔法师]

"""
    功能：分割字符串
    环境：python3.7
    日期：2019/1/14 20:13
    作者：指尖魔法师
    版本：1.0
"""
str1 = "s1,s2,s3,{s4,s5,s6},s7,s8"
str2 = []

def fenge(start,end):
    flag = False
    for i in range(start, end):
        if (str1[i] == '{'):
            flag = True
        if (str1[i] == '}'):
            flag = False
        if(str1[i] == ',') and (flag is False):
            str2.append(str1[start:i])
            start = i + 1
    print(str2)

def main():
    print(len(str1))
    print(str1[24])
    fenge(0, len(str1)-1)

if __name__ == '__main__':
    main()

[suiziugo]

import re


str1 = "s1,s2,s3,{s4,s5,s6},s7,s8,{s9,s10},{s11,s12},{s13,s14}"
res = []
ls = re.split(r'[{}]', str1)
for i in ls:
if i and i != ',':
if i.startswith(',') or i.endswith(','):
res.extend(i.strip(',').split(','))
else:
res.append('{' + i + '}')
print(res)

[ctgucool]

能有简单点方法吗，一两行搞定的那种

[混沌鳄鱼]

>>> re.findall(r'\w+|[{].+[}]',str1)
['s1', 's2', 's3', '{s4,s5,s6}', 's7', 's8']

[notback]

str1="s1,s2,s3,{s4,s5,s6},s7,s8"
slst = str1.translate(str.maketrans("","","{}")).split(",")

[胖子吴]

re.split(r"[{]?,[}]?",str1)