利用Python将txt文件批量去除重复行内容

main.py

# -*- coding: utf-8 -*-

if __name__ == '__main__':
    with open(r'cfg.txt', 'r', encoding='utf-8') as f:
        listNet = f.readlines()
        print(f"去重前数量：{len(listNet)}")
        # print(listNet)

        # 去除有’  \n‘, ’ ‘,’\n’
        listNet = [x.strip() for x in listNet]
        # print(listNet)
        # 去除空字符串''
        listNet = [x.strip() for x in listNet if x.strip() != '']
        # listNet = list(filter(None, listNet))
        print(f"去除空行后数量：{len(listNet)}")
        # print(listNet)

        # 去重
        listNet = list(set(listNet))
        print(f"去重后数量：{len(listNet)}")
        # print(listNet)

    with open(r'cfg_new.txt', 'w', encoding='utf-8') as f2:
        for i in range(len(listNet)):
            listNet[i] = listNet[i] + '\n'
        f2.writelines(listNet)

    print(f"数据处理后,已成功写入文件!")