Temporary File Processing with Python

The function first creates a temporary file and writes the argument arg1 to it. Then it reads the content of the file, replaces all uppercase letters with lowercase using regular expressions. If 'python' is found in the content, it returns the current time and the modified content; otherwise, it returns None and an error message.

Technology Stack : File operations, regular expressions, date and time formatting

Code Type : File operations and string processing

Code Difficulty : Intermediate

                
                    
import string
import random
import re
import os
import sys
import time
import datetime

def generate_random_string(length=10):
    letters = string.ascii_letters
    return ''.join(random.choice(letters) for i in range(length))

def xxx(arg1, arg2):
    # 创建一个临时文件
    with open('temp_file.txt', 'w') as file:
        file.write(arg1)
    
    # 读取文件内容，并使用正则表达式替换所有大写字母为小写
    with open('temp_file.txt', 'r') as file:
        content = file.read()
        modified_content = re.sub(r'[A-Z]', lambda x: x.group().lower(), content)
    
    # 检查修改后的内容是否包含特定子串
    if 'python' in modified_content:
        # 获取当前时间
        now = datetime.datetime.now()
        formatted_time = now.strftime('%Y-%m-%d %H:%M:%S')
        return formatted_time, modified_content
    else:
        return None, "No 'python' found in content."