使用 strip() 函数的 For 循环列表理解

Question

这是我的文件：

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

这是我当前的代码：

## <> 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"])

如果我打印(openFinalFile["test1"])，我如何做到这一点，它会return 30 的值（在文件中显示）？

错误 returned：builtins.ValueError：要解压的值太多（预期为 2 个）

Answer 1

我更愿意用户 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"])

使用 strip() 函数的 For 循环列表理解

For-loop list comprehension with strip() function

python

for-loop

list-comprehension

strip

python-3.8