python_剔除符合要求的数据并生成新的文件

遍历目录下，将GGA文件中符合要求（起始-截止的字符串）的数据剔除掉，生成新的文件。

import os
import fnmatch
import shutil
import re
import datetime
 
def find_files(directory, pattern):
    for root, dirs, files in os.walk(directory):
        for filename in fnmatch.filter(files, pattern):
            yield os.path.join(root, filename)
 
        # 调用函数，查找所有包含 'xxx' 的文件
 
 
def write_file(path_copy, path_copy_ex, pattern_start, pattern_end):
    with open(path_copy, 'r') as dst, open(path_copy_ex, 'w') as dst_w:
        # 默认写入文件
        writing = True
        num_count = 0
        for line in dst:
            # 正则匹配，起始行
            if re.search(pattern_start, line) and line.startswith('$GPZDA'):
                writing = False
            if writing:
                num_count += 1
                dst_w.write(line)
            # 正则匹配，截止行
            if re.search(pattern_end, line):  # and line.startswith('$GPGGA'):
                writing = True
                # break
        if num_count == 0:
            print(r'当前时间：%s，没有数据匹配' % (datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')))
        else:
            print(r'当前时间：%s，总共%s行写入完成，起始于:%s，截止于:%s' % (
                datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S'), num_count, pattern_start, pattern_end))
 
if __name__ == '__main__':
    directory = r"E:\data\日志文件第三组"
    # 匹配的起始截止字符
    pattern_start = "033040.00"
    pattern_end = "033140.00"
 
    for file_path in find_files(directory, "*gga*"):
        # 获取文件名称和文件路径
        file_path_base = os.path.basename(file_path)
        file_path_dir = os.path.dirname(file_path)
 
        # 拼接复制的文件名
        filename_new = "new_" + file_path_base
        path_copy = os.path.join(file_path_dir, filename_new)
 
        # 先复制文件
        shutil.copy2(file_path, path_copy)
 
        # 拼接处理（剔除）后的文件名
        filename_new_ex = "ex_" + file_path_base
        path_copy_ex = os.path.join(file_path_dir, filename_new_ex)
 
        # 匹配数据写入新文件
        write_file(path_copy, path_copy_ex, pattern_start, pattern_end)
 
        # 删除复制的文件
        if path_copy:
            os.remove(path_copy)