python去掉列表中的空格、空值、标点符号

作者：YXN-python 阅读量：8 发布日期：2024-02-29

import re


def clean_list_elements(lst):
    cleaned_list = []

    # 定义一个正则表达式模式，用于匹配标点符号
    punctuation_pattern = r'[^\w\s]'

    for element in lst:
        if isinstance(element, str):  # 确保元素是字符串
            # 移除标点符号
            cleaned_element = re.sub(punctuation_pattern, '', element)
            # 移除前后空格和中间空白符
            cleaned_element = cleaned_element.strip()
            cleaned_element = re.sub(r'\s+', '', cleaned_element)

            if cleaned_element:  # 检查是否为空字符串
                cleaned_list.append(cleaned_element)
        elif element is not None:  # 处理空值
            # 对于非字符串但非空的元素，仅移除None
            cleaned_list.append(element)

    return cleaned_list


input_list = [' apple ', 'orange!', '', 'pear,', None, 'banana ', '  ', 'grape...']
result = clean_list_elements(input_list)
print(result)

# 输出：['apple', 'orange', 'pear', 'banana', 'grape']

YXN-python

2024-02-29