50个常用Python脚本

50个常用Python脚本的代码示例：

1. 复制文件和目录

import shutilshutil.copy2('source_file', 'destination')shutil.copytree('source_dir', 'destination')

2. 字符串替换和查找

import restring = "hello world"new_string = re.sub(r"world", "python", string)print(new_string)if "world" in new_string:print("Found")else:print("Not found")

3. 文件读写操作

with open("file.txt", "r") as file:data = file.read()with open("file.txt", "a") as file:file.write("New content")

4. 解析CSV文件

import csvwith open('file.csv', newline='') as csvfile:reader = csv.reader(csvfile, delimiter=',', quotechar='|')for row in reader:print(', '.join(row))

5. 解析Excel文件

import xlrdworkbook = xlrd.open_workbook('file.xlsx')sheet = workbook.sheet_by_index(0)print(sheet.cell_value(0, 0))

6. 计算日期和时间

from datetime import datetime, timedeltanow = datetime.now()today = datetime.today()tomorrow = today + timedelta(days=1)

7. 生成随机数

import randomrandom_number = random.randint(1, 100)

8. 判断两个文件是否相同

import filecmpif filecmp.cmp('file1.txt', 'file2.txt'):print("The files are the same")else:print("The files are different")

9. 从命令行读取参数

import argparseparser = argparse.ArgumentParser()parser.add_argument("--input", help="input file name")args = parser.parse_args()print(args.input)

10. 定时执行脚本

import timewhile True:print("Hello")time.sleep(1) # wait for 1 second

11. 发送电子邮件

import smtplibfrom email.mime.text import MIMETextmsg = MIMEText('This is the body of the email')msg['Subject'] = 'Subject'msg['From'] = 'sender@example.com'msg['To'] = 'recipient@example.com's = smtplib.SMTP('localhost')s.sendmail('sender@example.com', ['recipient@example.com'], msg.as_string())s.quit()

12. 使用正则表达式匹配字符串

import rematch = re.search(r"world", "hello world")print(match.group())

13. 使用JSON格式处理数据

import jsondata = {"name": "John","age": 30,"city": "New York"}json_string = json.dumps(data)new_data = json.loads(json_string)

14. 解析XML文件

import xml.etree.ElementTree as ETtree = ET.parse('file.xml')root = tree.getroot()print(root.tag)

15. 将PDF转换成文本文件

import PyPDF2pdf_file = open('file.pdf', 'rb')reader = PyPDF2.PdfReader(pdf_file)text = ""for page in reader.pages:text += page.text

16. 爬取网页内容

import requestsresponse = requests.get('http://example.com')print(response.content)

17. 获取本机IP地址

import socketprint(socket.gethostbyname(socket.gethostname()))

18. 生成二维码

import qrcodeimg = qrcode.make('Hello, World!')img.save('qrcode.png')

19. 计算文件大小

import ossize = os.path.getsize('file.txt')

20. 对图片进行处理

from PIL import Imageimg = Image.open('image.jpg')img = img.resize((400, 300))img.save('new_image.jpg')

21. 反转字符串

string = "hello world"new_string = string[::-1]print(new_string)

22. 计算字符串中单词的数量

string = "hello world"word_count = len(string.split())print(word_count)

23. 模糊匹配字符串

from fuzzywuzzy import fuzzratio = fuzz.ratio("hello world", "helloworld")print(ratio)

24. 显示进度条

import timefrom tqdm import tqdmfor i in tqdm(range(100)):time.sleep(0.1)

25. 创建ZIP文件

import zipfilewith zipfile.ZipFile('file.zip', 'w') as zip:zip.write('file.txt')

26. 使用FTP上传和下载文件

import ftplibftp = ftplib.FTP()ftp.connect('ftp.example.com')ftp.login('username', 'password')ftp.cwd('/uploads')with open('file.txt', 'rb') as file:ftp.storbinary('STOR file.txt', file)ftp.quit()

27. 通过网络发送广播消息

import sockets = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)s.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)s.sendto(b'Hello, World!', ('', 12345))s.close()

28. 控制键盘和鼠标

import pyautoguipyautogui.moveTo(100, 100, duration=1)pyautogui.click(button='left')

29. 剪贴板操作

import pypercliptext = pyperclip.paste()pyperclip.copy('New text')

30. 创建和管理日志文件

import logginglogging.basicConfig(filename='app.log', level=logging.INFO)logging.debug('This is a debug message')logging.info('This is an informational message')logging.warning('This is a warning message')logging.error('This is an error message')logging.critical('This is a critical message')

31. 打印系统信息

import platformprint(platform.system())print(platform.release())

32. 投掷骰子模拟游戏

import randomclass Dice:def throw(self):return random.randint(1, 6)dice = Dice()result = dice.throw()print(result)

33. 编写简单的计算器

def add(a, b):return a + bdef subtract(a, b):return a - bdef multiply(a, b):return a * bdef divide(a, b):return a / ba = 5b = 3print(add(a, b))print(subtract(a, b))print(multiply(a, b))print(divide(a, b))

34. 处理异常和错误

try:x = 1 / 0except ZeroDivisionError as e:print(e)finally:print("Finally block")

35. 生成缩略图

from PIL import Imageimg = Image.open('image.jpg')img.thumbnail((100, 100))img.save('thumbnail.jpg')

36. 使用Google Maps API获取地图数据

import requestsresponse = requests.get('https://maps.googleapis.com/maps/api/geocode/json?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA')json_data = response.json()lat = json_data['results'][0]['geometry']['location']['lat']lng = json_data['results'][0]['geometry']['location']['lng']

37. 调用外部命令

import osos.system('ls -l')

38. 使用subprocess模块启动后台任务

import subprocesssubprocess.Popen(['python', 'script.py'])

39. 爬虫去重

from collections import defaultdicturl_list = ['http://example.com', 'http://example.com', 'http://google.com']url_dict = defaultdict(int)for url in url_list:url_dict[url] += 1print(url_dict.keys())

40. 自动化微信账号管理

import itchat@itchat.msg_register(itchat.content.TEXT)def text_reply(msg):return "I received: " + msg.textitchat.auto_login(hotReload=True)itchat.run()

41. 简单聊天机器人

import randomresponses = ["Hello", "Hi", "How are you?", "I'm fine.", "Goodbye"]while True:message = input("You: ")if message == "exit":breakresponse = random.choice(responses)print("Bot: " + response)

42. 查找最大值和最小值

numbers = [1, 2, 3, 4, 5]print(max(numbers))print(min(numbers))

43. 将字符串转换为Python代码并执行

code = """for i in range(10):print(i)"""exec(code)

44. 生成二进制文件

with open("file.bin", "wb") as file:data = bytes([0x01, 0x02, 0x03])file.write(data)

45. 数据清洗和处理

import pandas as pddata = pd.read_csv('file.csv')data = data.dropna() # remove null valuesdata = data.sort_values('column') # sort by column

46. 实现FTP服务器

from pyftpdlib.authorizers import DummyAuthorizerfrom pyftpdlib.handlers import FTPHandlerfrom pyftpdlib.servers import FTPServerauthorizer = DummyAuthorizer()authorizer.add_anonymous('/')handler = FTPHandlerhandler.authorizer = authorizerserver = FTPServer(('localhost', 21), handler)server.serve_forever()

47. 数据库连接和查询操作

import sqlite3connection = sqlite3.connect('example.db')cursor = connection.cursor()cursor.execute("CREATE TABLE example (id INTEGER PRIMARY KEY, name TEXT)")cursor.execute("INSERT INTO example (name) VALUES ('John')")data = cursor.execute("SELECT * FROM example")for row in data:print(row)connection.close()

48. 实现简单的Web服务器

from http.server import HTTPServer, BaseHTTPRequestHandlerclass MyHandler(BaseHTTPRequestHandler):def do_GET(self):self.send_response(200)self.send_header('Content-type', 'text/html')self.end_headers()message = "Hello, World!"self.wfile.write(bytes(message, "utf8"))httpd = HTTPServer(('localhost', 8080), MyHandler)httpd.serve_forever()

49. 使用Python实现加密算法

import hashlibmessage = "Hello, World!"hash_object = hashlib.sha256(message.encode('utf-8'))hash_value = hash_object.hexdigest()print(hash_value)

50. 实现基本的人工智能

import randomresponses = {"hello": ["Hello", "Hi", "How are you?"],"goodbye": ["Goodbye", "See you later", "Take care"]}while True:message = input("You: ")if message == "exit":breakfor keyword in responses.keys():if keyword in message.lower():response = random.choice(responses[keyword])print("Bot: " + response)breakelse:print("Bot: Sorry, I don't understand.")

以上是50个常用Python脚