使用strip()函数来理解For-loop list。

Question

这是我的文件。

test1,30 (# assuming \n is here)
test2,undefined (# assuming \n is here)
test3,5 valid attempts

这是我目前的代码

## <> arrows suggests input & not shown here

import os

os.system(<file path directory>)
with open(<file path directory>) as openDocument:
    openfile = openDocument.read()
    openfile = openfile .replace("\x00", "").split("\n")   
    openfile = [openfile .split(",") for openfile in openfile [1:]]
    openFinalFile = {policyName.strip(): policyValue.strip() for policyName, policyValue in openFile if policyName != ''} ## Currently causing an error

    print(openFinalFile["test1"])

我怎样才能使我在print(openFinalFile["test1"])时，返回30的值(如文件所示)？

返回的错误： builtins.ValueError: Too many values to unpack (expected 2)

Answer 1

我宁愿用户 pathlib:

from pathlib import Path
lines = Path(<file path directory>).read_text().replace("\x00", "").splitlines()
pairs = [i.split(',') for i in lines]
openFinalFile = {k.strip(): v.strip() for k, v in pairs if k}
print(openFinalFile["test1"])