从旧文件读取数据、将其写入新文件然后删除 Python 中的旧文件时出错

Question

我正在尝试使用以下代码从源中读取 5 个文件，将它们写入目标，然后删除源中的文件。我收到以下错误：[Errno 13] Permission denied: 'c:\data\AM\Desktop\tester1。顺便说一句，该文件如下所示：

import os
import time

source = r'c:\data\AM\Desktop\tester'
destination = r'c:\data\AM\Desktop\tester1'


for file in os.listdir(source):
    file_path = os.path.join(source, file)
    if not os.path.isfile:
        continue
    print(file_path)


with open (file_path, 'r') as IN, open (destination, 'w') as OUT:
    data ={
            'Power': None,
            }
    for line in IN:
        splitter = (ID, Item, Content, Status) = line.strip().split()
        if Item in data == "Power":
            Content = str(int(Content) * 10)

os.remove(IN)

Answer 1

我不确定你在这里要做什么，但这是我可以提出的标题中的问题。

import os

# Takes the text from the old file
with open('old file path.txt', 'r') as f:
    text = f.read()

# Takes text from old file and writes it to the new file
with open('new file path.txt', 'w') as f:
    f.write(text)

# Removes the old text file
os.remove('old file path.txt')

Answer 2

从你的描述看来，这条线失败了：

with open (file_path, 'r') as IN, open (destination, 'w') as OUT:

因为这个操作：

open (destination, 'w')

因此，您可能没有对

的写入权限

c:\data\AM\Desktop\tester1

在 Windows 系统上设置文件权限： https://www.online-tech-tips.com/computer-tips/set-file-folder-permissions-windows/

Answer 3

我重写了你的全部代码。我假设您想将 Power 的值更新为 10 的倍数，并将更新后的内容写入新文件。下面的代码将做到这一点。

您的代码有多个问题，首先，您脑海中想要的大部分内容都没有写入代码（例如写入新文件、提供写入内容和写入位置等）。最初的权限问题是因为您试图打开一个 directory 来写入而不是 file.

source = r'c:\data\AM\Desktop\tester'
destination = r'c:\data\AM\Desktop\tester1' 

for file in os.listdir(source):
    source_file = os.path.join(source, file)
    destination_file=os.path.join(destination, file)
    if not os.path.isfile:
        continue
    print(source_file)

    with open (source_file, 'r') as IN , open (destination_file, 'w') as OUT: 
        data={
            'Power': None,
        }
        for line in IN:
            splitter = (ID, Item, Content, Status) = line.strip().split()
            if Item in data:# == "Power": #Changed
                Content = str(int(Content) * 10)
                OUT.write(ID+'\t'+Item+'\t'+Content+'\t'+Status+'\n') #Added to write the content into destination file.
            else:
                OUT.write(line) #Added to write the content into destination file.

    os.remove(source_file)

希望这对你有用。

Answer 4

@Sherin Jayanand

还有一个问题兄弟，我想用你的一些代码尝试一下。我做到了：

import os
import time
from datetime import datetime

#Make source, destination and archive paths.
source = r'c:\data\AM\Desktop\Source'
destination = r'c:\data\AM\Desktop\Destination'
archive = r'c:\data\AM\Desktop\Archive'

for root, dirs, files in os.walk(source):
    for f in files:
        pads = (root + '\' + f)
#        print(pads)
    for file in os.listdir(source):
        dst_path=os.path.join(destination, file)
        print(dst_path)

    with open(pads, 'r') as IN, open(dst_path, 'w') as OUT:
        data={'Power': None,
              }
        for line in IN:
            (ID, Item, Content, Status) = line.strip().split()
            if Item in data:
                Content = str(int(Content) * 10)
                OUT.write(ID+'\t'+Item+'\t'+Content+'\t'+Status+'\n')
            else:
                OUT.write(line)

但我再次收到同样的错误：Permission denied: 'c:\data\AM\Desktop\Destination\C'

怎么来的？非常感谢你！

从旧文件读取数据、将其写入新文件然后删除 Python 中的旧文件时出错

Error reading data from the old files, writing it into the new files and then deleting the old files in Python

python

file

move