python - 如何将列表类型更改为str？

Question

这个问题已经有答案了:

Reading a list stored in a text file [duplicate] (2 个回答)

已关闭 5 年前。

我正在从网页的 html 中提取格式为

的列表

lst = '["a","b","c"]' # (type <str>)

上面的数据类型是 str ，我希望它转换为 python 列表类型 ，像这样

lst = ["a","b","c"]  #(type <list>)

我可以通过以下方式获得上述内容

lst = lst[1:-1].replace('"','').split(',')

但是由于a、b和c的实际值相当长且复杂(包含很长的html文本)，所以我不能依赖上述方法。

我还尝试使用 json 模块并使用 json.loads(lst) 来完成此操作，即给出以下异常

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.7/json/__init__.py", line 339, in loads
    return _default_decoder.decode(s)
  File "/usr/local/lib/python2.7/json/decoder.py", line 364, in decode
    obj, end = self.raw_decode(s, idx=_w(s, 0).end())
  File "/usr/local/lib/python2.7/json/decoder.py", line 382, in raw_decode
    raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

有什么方法可以在Python中转换为列表吗？

编辑:列表的实际值为: ['reqlistitem.no','reqlistitem.applyonlinejobdesc','reqlistitem.no','reqlistitem.referjobdesc','reqlistitem.applyemailsubjectapplication','reqlistitem.applyemailjobdesc','reqlistitem.no','reqlistitem.addedtojobcart','reqlistitem.displayjobcartactionjobdesc','reqlistitem.shareURL','reqlistitem.title','reqlistitem.shareable','reqlistitem.title','reqlistitem.contestnumber','reqlistitem.contestnumber','reqlistitem.description','reqlistitem.description','reqlistitem.primarylocation','reqlistitem.primarylocation','reqlistitem.otherlocations','reqlistitem.jobschedule','reqlistitem.jobschedule','reqlistitem.jobfield','reqlistitem.jobfield','reqlistitem.displayreferfriendaction','reqlistitem.no','reqlistitem.no','reqlistitem.applyonlinejobdesc','reqlistitem.no','reqlistitem.referjobdesc','reqlistitem.applyemailsubjectapplication','reqlistitem.applyemailjobdesc','reqlistitem.no','reqlistitem.addedtojobcart','reqlistitem.displayjobcartactionjobdesc','reqlistitem.shareURL','reqlistitem.title','reqlistitem.shareable']

Answer 1

我认为您正在寻找literal_eval:

import ast

string = '["a","b","c"]'

print ast.literal_eval(string) # ['a', 'b', 'c']