Python中常用脚本集锦分享

import shutil
 
# 复制源文件到目标文件
shutil.copy('source.txt', 'destination.txt')

import shutil
 
# 移动文件到新的路径
shutil.move('source.txt', 'destination.txt')

import os
 
# 创建多层目录，如果已经存在则不报错
os.makedirs('dir/subdir/subsubdir', exist_ok=True)

import os
 
# 删除当前目录下的所有空目录
for root, dirs, files in os.walk('.', topdown=False):
    for name in dirs:
        dir_path = os.path.join(root, name)
        if not os.listdir(dir_path):
            os.rmdir(dir_path)

import os
 
# 查找当前目录及子目录下大于1MB的文件
for root, dirs, files in os.walk('.'):
    for name in files:
        if os.path.getsize(os.path.join(root, name)) > 1024 * 1024:
            print(os.path.join(root, name))

import os
 
# 检查指定文件是否存在
if os.path.exists('file.txt'):
    print("File exists.")
else:
    print("File does not exist.")

with open('file.txt', 'r') as file:    
   content = file.read()

with open('file.txt', 'w') as file:    
    file.write('Hello, World!')

import csv
 
# 读取 CSV 文件并打印每一行
with open('data.csv', 'r') as file:
    reader = csv.reader(file)
    for row in reader:
        print(row)

import csv
 
# 写入数据到 CSV 文件
data = [['Name', 'Age'], ['Alice', 30], ['Bob', 25]]
with open('data.csv', 'w', newline='') as file:
    writer = csv.writer(file)
    writer.writerows(data)

import json
 
# 读取 JSON 文件
with open('data.json', 'r') as file:
    data = json.load(file)

import json
 
# 将数据写入 JSON 文件
data = {'name': 'Alice', 'age': 30}
with open('data.json', 'w') as file:
    json.dump(data, file)

# 从列表中去除重复项
my_list = [1, 2, 2, 3, 4, 4, 5]
unique_list = list(set(my_list))

# 对列表进行排序
my_list = [3, 1, 4, 1, 5, 9, 2, 6, 5, 3, 5]
sorted_list = sorted(my_list)

import requests
 
# 发送 GET 请求并获取网页内容
response = requests.get('https://www.example.com')
print(response.text)

import requests
 
# 发送 POST 请求并打印响应
payload = {'key1': 'value1', 'key2': 'value2'}
response = requests.post('https://httpbin.org/post', data=payload)
print(response.text) 

import requests
 
# 获取并解析 JSON 响应
response = requests.get('https://api.example.com/data')
data = response.json()
print(data)

import requests
 
# 下载并保存图片
img_data = requests.get('http://example.com/image.jpg').content
with open('image.jpg', 'wb') as handler:
    handler.write(img_data)

import schedule
import time
 
# 定义定时执行的任务
def job():
    print("I'm working...")
 
# 每10秒执行一次任务
schedule.every(10).seconds.do(job)
while True:
    schedule.run_pending()
    time.sleep(1) 

import smtplib
from email.mime.text import MIMEText
 
# 发送电子邮件
msg = MIMEText('Hello, this is a test email.')
msg['Subject'] = 'Test Email'
msg['From'] = 'your_email@example.com'
msg['To'] = 'recipient@example.com'
s = smtplib.SMTP('localhost')
s.send_message(msg)
s.quit() 

# 统计字符串中的单词数
text = "This is a test. This is only a test."
word_count = len(text.split())
print(f"Word count: {word_count}")

# 替换字符串中的子串
text = "Hello, World!"
new_text = text.replace("World", "Python")
print(new_text)

# 将列表中的字符串连接为一个字符串
fruits = ['apple', 'banana', 'orange']
text = ', '.join(fruits)
print(text)

# 使用 f-string 格式化字符串
name = "Alice"
age = 30
formatted_text = f"Name: {name}, Age: {age}"
print(formatted_text)

import random
 
# 生成1到100之间的随机整数
random_number = random.randint(1, 100)
print(random_number)

import random
import string
 
# 生成随机密码
password = ''.join(random.choices(string.ascii_letters + string.digits, k=12))
print(password)

import os
 
# 读取指定环境变量
api_key = os.getenv('API_KEY')
print(api_key)

import subprocess
 
# 运行系统命令并打印输出
result = subprocess.run(['ls', '-l'], stdout=subprocess.PIPE)
print(result.stdout.decode('utf-8'))