import time
import requests
from requests.exceptions import RequestException

def fetch_with_retry(url, max_retries=3, pause=2):
    """
    帶有自動重試機制的GET請求
    """
    for attempt in range(max_retries):
        try:
            # 設(shè)置超時是必須的，防止程序無限掛起
            response = requests.get(url, timeout=10)
            response.raise_for_status() # 如果狀態(tài)碼不是200，拋出異常
            return response
        except RequestException as e:
            print(f"請求失敗 (嘗試 {attempt + 1}/{max_retries}): {e}")
            if attempt == max_retries - 1:
                raise # 最后一次嘗試也失敗，拋出異常
            time.sleep(pause)

# 使用示例
try:
    data = fetch_with_retry("https://api.github.com")
    print(f"請求成功，狀態(tài)碼: {data.status_code}")
except RequestException:
    print("重試多次后依然失敗，請檢查網(wǎng)絡(luò)或目標(biāo)服務(wù)。")

import os

TARGET_DIR = "./reports"

def clean_filename(text):
    # 去除文件名中的非法字符
    return "".join(c if c.isalnum() else "_" for c in text)[:50]

for filename in os.listdir(TARGET_DIR):
    full_path = os.path.join(TARGET_DIR, filename)
    
    # 確保只處理文件
    if os.path.isfile(full_path):
        try:
            with open(full_path, "r", encoding='utf-8') as f:
                # 讀取第一行作為新文件名
                first_line = f.readline().strip()
                
            if first_line:
                new_name = clean_filename(first_line) + ".txt"
                new_path = os.path.join(TARGET_DIR, new_name)
                
                # 防止覆蓋已存在的文件
                if not os.path.exists(new_path):
                    os.rename(full_path, new_path)
                    print(f"重命名: {filename} -> {new_name}")
        except Exception as e:
            print(f"無法處理文件 {filename}: {e}")

import os
import time

WATCH_DIR = "/path/to/cleanup"
EXPIRY_DAYS = 180 # 6個月未訪問則刪除
current_time = time.time()

for filename in os.listdir(WATCH_DIR):
    filepath = os.path.join(WATCH_DIR, filename)
    
    if os.path.isfile(filepath):
        # 獲取最后訪問時間 (atime)
        last_access_time = os.path.getatime(filepath)
        
        # 計算時間差
        if current_time - last_access_time > (EXPIRY_DAYS * 86400):
            try:
                os.remove(filepath)
                print(f"已刪除陳舊文件: {filename}")
            except OSError as e:
                print(f"刪除失敗: {e}")

import psutil

# 設(shè)定閾值：CPU占用超過80%且進程名為python
CPU_THRESHOLD = 80.0
PROCESS_NAME = "python"

for proc in psutil.process_iter(['pid', 'name', 'cpu_percent']):
    try:
        # psutil獲取cpu_percent通常需要interval，這里取瞬時值可能需要兩次調(diào)用或結(jié)合實際場景調(diào)整
        # 在腳本循環(huán)監(jiān)控中更為有效
        if proc.info['name'] and PROCESS_NAME in proc.info['name'].lower():
            if proc.info['cpu_percent'] > CPU_THRESHOLD:
                print(f"檢測到高負(fù)載僵尸進程 PID: {proc.info['pid']} (CPU: {proc.info['cpu_percent']}%)")
                proc.kill()
                print("已終止進程。")
    except (psutil.NoSuchProcess, psutil.AccessDenied):
        pass

import shutil
import time
import os

def safe_backup(filepath):
    if not os.path.exists(filepath):
        print(f"文件不存在: {filepath}")
        return

    # 生成帶時間戳的備份文件名
    timestamp = time.strftime("%Y%m%d_%H%M%S")
    backup_path = f"{filepath}.{timestamp}.bak"
    
    try:
        shutil.copy2(filepath, backup_path)
        print(f"備份已創(chuàng)建: {backup_path}")
    except IOError as e:
        print(f"備份失敗: {e}")
        raise # 備份失敗則應(yīng)該中斷后續(xù)操作

# 使用場景：修改配置前
config_file = "app_config.yaml"
safe_backup(config_file)
# 此處執(zhí)行寫入操作...

import platform
import os

def send_notification(title, text):
    system_type = platform.system()
    
    if system_type == "Darwin": # macOS
        # 使用 AppleScript 調(diào)用通知
        cmd = f"""osascript -e 'display notification "{text}" with title "{title}"'"""
        os.system(cmd)
    elif system_type == "Linux":
        # Linux 通常使用 notify-send
        cmd = f"""notify-send "{title}" "{text}" """
        os.system(cmd)
    else:
        print(f"通知: [{title}] {text}")

# 模擬長時間任務(wù)
import time
time.sleep(2)
send_notification("任務(wù)完成", "數(shù)據(jù)處理腳本已執(zhí)行完畢。")

import requests
from bs4 import BeautifulSoup
import csv

def scrape_data(url, output_file):
    # 偽裝 User-Agent 防止被簡單的反爬攔截
    headers = {'User-Agent': 'Mozilla/5.0'}
    
    try:
        response = requests.get(url, headers=headers)
        soup = BeautifulSoup(response.content, 'html.parser')
        
        # 假設(shè)我們要抓取文章列表中的標(biāo)題和鏈接
        articles = soup.find_all('article')
        data_rows = []
        
        for article in articles:
            title_tag = article.find('h2')
            if title_tag and title_tag.a:
                title = title_tag.a.text.strip()
                link = title_tag.a['href']
                data_rows.append([title, link])
        
        # 寫入CSV
        with open(output_file, 'w', newline='', encoding='utf-8') as f:
            writer = csv.writer(f)
            writer.writerow(['標(biāo)題', '鏈接'])
            writer.writerows(data_rows)
            
        print(f"成功抓取 {len(data_rows)} 條數(shù)據(jù)并保存至 {output_file}")
        
    except Exception as e:
        print(f"抓取過程中出錯: {e}")

# 示例調(diào)用
# scrape_data("http://example-blog.com", "results.csv")

import os
import shutil
from pathlib import Path

SOURCE_DIR = Path("/Users/username/Downloads/MixedData")
DEST_DIR = Path("/Users/username/Documents/Sorted")

def organize_files():
    if not SOURCE_DIR.exists():
        return

    for file_path in SOURCE_DIR.iterdir():
        if file_path.is_file():
            # 獲取擴展名，例如 .pdf
            ext = file_path.suffix.lower()
            
            if ext: # 忽略無后綴文件
                # 去掉點號，作為文件夾名，例如 pdf
                folder_name = ext[1:].upper() + "_Files"
                target_folder = DEST_DIR / folder_name
                
                # 創(chuàng)建目標(biāo)文件夾
                target_folder.mkdir(parents=True, exist_ok=True)
                
                # 移動文件
                try:
                    shutil.move(str(file_path), str(target_folder / file_path.name))
                    print(f"移動: {file_path.name} -> {folder_name}")
                except shutil.Error as e:
                    print(f"移動文件出錯: {e}")

if __name__ == "__main__":
    organize_files()