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我正在使用以下脚本为作为第一个参数传递的给定目录的目录和子目录中的所有文件添加版权，正在按如下方式运行脚本但遇到以下错误...任何人都可以在 ohw 上提供输入修理它？

错误：-

unable to clean up temp file: C:\Dropbox\copyrights\tmp18valt
Traceback (most recent call last):
  File "Add_copyright.py", line 69, in <module>
    prepend_file(fullname, dirpath)
  File "Add_copyright.py", line 54, in prepend_file
    os.remove(temp_fname)
WindowsError: [Error 32] The process cannot access the file because it is being used by another process: 'C:\\Dropbox\\copyrights\\tmp18valt'

代码：-

import fnmatch
import os
import shutil
import sys
import tempfile

file_patterns_to_match = ['*.c','*.h','*.cpp','*.txt']

headertext = """/*
 * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
 *
 * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
 *
 *
 * Permission to use, copy, modify, and/or distribute this software for
 * any purpose with or without fee is hereby granted, provided that the
 * above copyright notice and this permission notice appear in all
 * copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */
"""

# make any newlines in headertext match the system line ending
headertext = headertext.replace('\n', os.linesep)

def want_this_file(fname):
    for pat in file_patterns_to_match:
        if fnmatch.fnmatch(fname, pat):
            return True
    return False

def prepend_file(fullname, path):
    # with statement means temp file is written and closed at end of with
    with tempfile.NamedTemporaryFile(dir=path, delete=False) as out_file:
        # get the name immediately
        temp_fname = out_file.name

        try:
            # use binary mode to avoid newline translations
            with open(fullname, "rb") as in_file:
                out_file.write(headertext)
                shutil.copyfileobj(in_file, out_file)
        except Exception:
            # on any error, clean up temp file and re-raise exception
            try:
                os.remove(temp_fname)
            except Exception:
                print("unable to clean up temp file: " + temp_fname)
                pass
            raise
    # rename temp file to fullname, clobbering original
    os.rename(temp_fname, fullname)


start_directory = sys.argv[1]

for dirpath, dirnames, filenames in os.walk(start_directory):
    for fname in filenames:
        if want_this_file(fname):
            fullname = os.path.join(dirpath, fname)
            prepend_file(fullname, dirpath)
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