Use Python to implement the modification date function of batch modifying files

background

In daily file management, you may need to batch modify the modification date of the file. For example, you might want to randomly set the modification dates for all files in a folder to dates between June and August. This can be very useful during data collation, testing or development. This article will explain in detail how to implement this feature using Python.

Preparation

First, make sure that Python is installed on your computer. You can check if Python is installed by:

python --version

If it has not been installed yet, go toPython official websiteDownload and install the version that suits your operating system.

Implementation steps

1. Import the necessary modules

We need to importos、time、randomanddatetimemodule for file operations and time processing.

2. Define folder path

Specifies the folder path to modify.

3. Generate a function that random dates

Create a function that generates a random date between a given start and end date.

4. Traverse files in folders

use()The function iterates through all files in the folder and checks each file.

5. Modification time of the file

use()The function sets the access and modification time of each file to a randomly generated date.

Complete code example

Here is a complete Python code example:

import os
import time
import random
from datetime import datetime, timedelta

# Specify the folder path to modifyfolder_path = '/path/to/your/folder'

# Function generates random datesdef random_date(start, end):
    return start + timedelta(seconds=(0, int((end - start).total_seconds())))

# Define the start and end dates from June to Auguststart_date = datetime(2024, 6, 1)
end_date = datetime(2024, 8, 31)

# traverse all files in the folderfor filename in (folder_path):
    file_path = (folder_path, filename)
    
    # Check if it is a file    if (file_path):
        # Generate random dates        rand_date = random_date(start_date, end_date)
        timestamp = (rand_date.timetuple())
        
        # Modify the file        (file_path, (timestamp, timestamp))
        print(f"Updated: {file_path} to {rand_date}")

print("The modification dates of all files have been updated randomly.")

Code parsing

Import module: Introduce the required modules for file operations and date processing.
Folder path:Willfolder_pathSet to the actual path to the folder to be processed.
Generate random dates：random_dateThe function generates a random date by calculating the number of random seconds between two dates.
Traversal files:use()List all files in the folder, use()Check file type.
Modify file time:use()Set the access and modification time for each file to a random date.

Things to note

Permissions: Make sure you have permission to modify files in the specified folder.
Backup data: Before batch modifying files, it is recommended to back up important data to prevent unexpected situations.
Test code: Test the code in a small range to make sure it works as expected and then run on a large number of files.

Summarize

With the above steps, you can easily batch modify the modification dates of all files in the folder to a random date between June and August.

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