Python按条件批量删除TXT文件行工具

import os
import re
import time
from tkinter import ttk, filedialog, messagebox, insert, tk, button, text, scrollbar, \
    horizontal, vertical, intvar, checkbutton, label, stringvar, entry  # 有combobox、labelframe 组件时需要本语句
import windnd
 
ui_pos = {
    "title": "txt文件处理助手",
    "geometry": "450x300",  # 长乘宽
 
}
 
filepaths = ()
 
 
def clearall():
    ctrl_filelistbox.delete(1.0, "end")  # 清空文件路径
    str_keyword.set("")
    str_keynum.set("")
 
 
def gettxtfiles():
    global filepaths
    files = filedialog.askopenfilenames(filetypes=[('text files', '.txt')])
    if files:
        filepaths = files
        for f_name in files:
            ctrl_filelistbox.insert('end', f_name)
            ctrl_filelistbox.insert(insert, '\n')
    else:
        messagebox.showinfo(title='提示', message='没有选择任何文件！')
 
 
def keywordscan(keys, s):
    key_words = keys.split(" ")
    t_f = false
    for key_word in key_words:
        if key_word in s:
            t_f = true
    return t_f
 
 
def ctrl_startbtn_clicked():
    has_key_words = int_checkbox1.get()
    key_words = str_keyword.get()
 
    has_empty_line = int_checkbox2.get()
 
    has_n = int_checkbox3.get()
    n = str_keynum.get()
 
    has_zz = int_checkbox4.get()
    zz = str_zz.get()
    try:
        for file in filepaths:  # 循环遍历文件
            s_file = open(os.path.splitext(file)[0] + "_new" + os.path.splitext(file)[1], 'w+')  # 文件保存位置
            f_lines = open(file, encoding='utf8').readlines()  # 打开文件，读入每一行
            for s in f_lines:  # s: 每一行的内容
                # 操作1
                if has_key_words:
                    if keywordscan(key_words, s):
                        continue
                # 操作2
                if has_empty_line:
                    if len(s.strip()) == 0:
                        continue
                # 操作3：
                if has_n:
                    if len(s.strip()) < int(n):
                        continue
                if has_zz:
                    if re.match(zz, s.strip()):
                        continue
                s_file.write(s)
            s_file.close()  # 关闭文件
    except exception as e:
        with open("log", "a+") as f:
            f.write(time.strftime("%y-%m-%d, %h:%m:%s", time.localtime()) + "\n")
            f.write(repr(e) + "\n")
 
 
def draggedfiles(files):
    msg = '\n'.join((item.decode('gbk') for item in files))
    for f_name in files:
        ctrl_filelistbox.insert('end', f_name)
        ctrl_filelistbox.insert(insert, '\n')
    print(msg)
 
 
root = tk()  # 设定窗体变量
root.geometry(ui_pos["geometry"])  # 格式('宽x高+x+y')其中x、y为位置
root.title(ui_pos["title"])
windnd.hook_dropfiles(root, func=draggedfiles)
 
ctrl_frame1 = ttk.labelframe(root, text='选项')
ctrl_frame1.place(x=14, y=72, width=388, height=140)
 
ctrl_startbtn = button(root, text='执行', font=('宋体', '9'),
                       command=ctrl_startbtn_clicked)  # 可在括号内加上调用函数部分 ,command=ctrl_startbtn_clicked
ctrl_startbtn.place(x=22, y=250, width=72, height=29)
 
ctrl_quitbtn = button(root, text='清除', font=('宋体', '9'), command=clearall)  # 可在括号内加上调用函数部分 ,command=ctrl_quitbtn_clicked
ctrl_quitbtn.place(x=108, y=250, width=72, height=29)
 
ctrl_filelistbox = text(root, font=('宋体', '9'))
ctrl_filelistbox.place(x=14, y=7, width=260, height=38)
ctrl_scrollbar1 = scrollbar(root, command=ctrl_filelistbox.xview, orient=horizontal)
ctrl_scrollbar1.place(x=14, y=46, width=261, height=16)
ctrl_scrollbar2 = scrollbar(root, command=ctrl_filelistbox.yview, orient=vertical)
ctrl_scrollbar2.place(x=275, y=7, width=16, height=39)
ctrl_filelistbox.config(xscrollcommand=ctrl_scrollbar1.set, yscrollcommand=ctrl_scrollbar2.set, wrap='none')
 
int_checkbox1 = intvar()  # 绑定变量
ctrl_checkbox1 = checkbutton(ctrl_frame1, text='删除行含关键字或词的行', variable=int_checkbox1, font=('宋体', '9'))
ctrl_checkbox1.place(x=14, y=14, height=22)  # 考虑到对齐问题，不列入宽度，需要时手动加入 width=130
ctrl_checkbox1.deselect()  # 默认为未选中状态
 
ctrl_label1 = label(ctrl_frame1, text="关键字：")
ctrl_label1.place(x=180, y=14, width=55, height=22)
 
str_keyword = stringvar()  # 绑定变量
ctrl_keyword = entry(ctrl_frame1, textvariable=str_keyword, font=('宋体', '9'))
ctrl_keyword.place(x=230, y=14, width=150, height=22)
 
int_checkbox2 = intvar()  # 绑定变量
ctrl_checkbox2 = checkbutton(ctrl_frame1, text='删除空行', variable=int_checkbox2, font=('宋体', '9'))
ctrl_checkbox2.place(x=14, y=36, height=22)  # 考虑到对齐问题，不列入宽度，需要时手动加入 width=130
ctrl_checkbox2.deselect()  # 默认为未选中状态
 
int_checkbox3 = intvar()  # 绑定变量
ctrl_checkbox3 = checkbutton(ctrl_frame1, text='删除字符小于n的行', variable=int_checkbox3, font=('宋体', '9'))
ctrl_checkbox3.place(x=14, y=58, height=22)  # 考虑到对齐问题，不列入宽度，需要时手动加入 width=130
ctrl_checkbox3.deselect()  # 默认为未选中状态
# n标签
ctrl_label = label(ctrl_frame1, text="n =")
ctrl_label.place(x=180, y=58, width=55, height=22)
# n
str_keynum = stringvar()  # 绑定变量
ctrl_keynum = entry(ctrl_frame1, textvariable=str_keynum, font=('宋体', '9'))
ctrl_keynum.place(x=230, y=58, width=30, height=22)
 
int_checkbox4 = intvar()  # 绑定变量
ctrl_checkbox4 = checkbutton(ctrl_frame1, text='删除符合正则的行', variable=int_checkbox4, font=('宋体', '9'))
ctrl_checkbox4.place(x=14, y=80, height=22)  # 考虑到对齐问题，不列入宽度，需要时手动加入 width=130
ctrl_checkbox4.deselect()  # 默认为未选中状态
 
# n标签
ctrl_label2 = label(ctrl_frame1, text="正则：")
ctrl_label2.place(x=180, y=80, width=55, height=22)
# n
str_zz = stringvar()  # 绑定变量
ctrl_zz = entry(ctrl_frame1, textvariable=str_zz, font=('宋体', '9'))
ctrl_zz.place(x=230, y=80, width=150, height=22)
 
ctrl_openfilebtn = button(root, text='选择文件',
                          font=('宋体', '9'),
                          command=gettxtfiles)  # 可在括号内加上调用函数部分 ,command=ctrl_openfilebtn_clicked
ctrl_openfilebtn.place(x=305, y=18, width=72, height=29)
 
root.mainloop()