Python 类型错误：“_io.TextIOWrapper”对象不可下标
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TypeError: '_io.TextIOWrapper' object is not subscriptable
提问by Eric
Getting the error as the title says. Here is the traceback. I know lst[x] is causing this problem but not too sure how to solve this one. I've searched google + stackoverflow already but did not get the solution I am looking for.
得到标题所说的错误。这是回溯。我知道 lst[x] 导致了这个问题，但不太确定如何解决这个问题。我已经搜索了 google + stackoverflow，但没有得到我正在寻找的解决方案。
Traceback (most recent call last):
File "C:/Users/honte_000/PycharmProjects/Comp Sci/2015/2015/storelocation.py", line 30, in <module>
main()
File "C:/Users/honte_000/PycharmProjects/Comp Sci/2015/2015/storelocation.py", line 28, in main
print(medianStrat(lst))
File "C:/Users/honte_000/PycharmProjects/Comp Sci/2015/2015/storelocation.py", line 24, in medianStrat
return lst[x]
TypeError: '_io.TextIOWrapper' object is not subscriptable
Here is the actual code
这是实际的代码
def medianStrat(lst):
count = 0
test = []
for line in lst:
test += line.split()
for i in lst:
count = count +1
if count % 2 == 0:
x = count//2
y = lst[x]
z = lst[x-1]
median = (y + z)/2
return median
if count %2 == 1:
x = (count-1)//2
return lst[x] # Where the problem persists
def main():
lst = open(input("Input file name: "), "r")
print(medianStrat(lst))
So what could be the solution to this problem or what could be done instead to make the code work? ( The main function that the code should do is to open a file and get the median )
那么这个问题的解决方案是什么，或者可以做些什么来使代码工作？（代码应该做的主要功能是打开文件并获取中位数）
采纳答案by Robin Curbelo
You can't index (__getitem__) a _io.TextIOWrapperobject. What you can do is work with a listof lines. Try this in your code:
你不能索引 ( __getitem__) 一个 _io.TextIOWrapper对象。您可以做的是使用 alist行。在你的代码中试试这个：
lst = open(input("Input file name: "), "r").readlines()
Also, you aren't closing the fileobject, this would be better:
另外，您没有关闭file对象，这样会更好：
with open(input("Input file name: ", "r") as lst:
print(medianStrat(lst.readlines()))
withensures that file get closed, see docs
with确保文件被关闭，请参阅文档
