解压缩文件时出现“错误0x80070057:参数不正确”

时间:2019-07-23 14:04:12

标签: python django zipfile weasyprint

我创建了一个函数,用于使用Weasyprint创建多个PDF,将它们压缩在一起并下载zip文件。当尝试使用内部zip程序在Windows 10上提取文件夹时,出现此错误:

  

“意外错误使您无法复制文件。[...]错误0x80070057” << / p>

我可以跳过该错误,并提取文件。但是,在最佳情况下,我想防止出现此错误。

def get_all_shareholder_reports(request):
   current_shareholders = list(models.objects.all())

    zip_buffer = io.BytesIO()
    with zipfile.ZipFile(zip_buffer, "a") as zip_file:

        for shareholder in current_shareholders:
            pdf_file_handle = io.BytesIO()
            context_dict = get_report_details(pk=shareholder.shareholder_id)

            html_string = render_to_string('template.html',
                                           context_dict)

            html_handler = HTML(string=html_string, base_url=request.build_absolute_uri())
            html_handler.write_pdf(target=pdf_file_handle)
            pdf_file_handle.seek(0)
            pdf_string = pdf_file_handle.getvalue()
            pdf_file_name ='Shareholder_Report_{}_{}_{}.pdf'.format(context_dict['shareholder'].forename,
                                                                     context_dict['shareholder'].surname,
                                                                     datetime.datetime.now().strftime(
                                                                         "%d_%m_%Y_%H:%M:%S"))
            zip_file.writestr(zinfo_or_arcname=pdf_file_name, data=pdf_string)

    zip_buffer.seek(0)
    response = HttpResponse(zip_buffer.getvalue(), content_type="application/x-zip-compressed")

    response['Content-Disposition'] = 'attachment; filename=%s' % 'myzip.zip'

    return response

2 个答案:

答案 0 :(得分:1)

您基本上需要清除Windows中所有保留字符的文件名:https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions

因此,以下应"filename".replaceAll("[<>:\"/\\\\|?*]", "")

答案 1 :(得分:0)

我发现:zip文件不喜欢文件名中的“:”。删除它们可以解决问题。

pdf_file_name ='Shareholder_Report_{}_{}_{}.pdf'.format(context_dict['shareholder'].forename,
                                                                     context_dict['shareholder'].surname,
                                                                     datetime.datetime.now().strftime(
                                                                         "%d_%m_%Y_%H_%M_%S"))