#encoding:utf-8

 import os

 from django.core.servers.basehttp import FileWrapper

 from django.http import HttpResponse

 path = '/tmp/'

 def downloader(request):

     filename_tmp = 'test.tmp'   # test.tmp为将要被下载的文件名

     filename = os.path.join(path,filename_tmp)

     wrapper = FileWrapper(file(filename))

     response = HttpResponse(wrapper, content_type='text/plain')

     response['Content-Length'] = os.path.getsize(filename)

     response['Content-Disposition'] = 'attachment; filename="somefilename.csv"'    # somefilename.csv为下载后的文件名

     return response

<a href="download/file/">下载</a>

 url(r'^download/file/$', 'xxx.views.download'),    # xxx为项目名

 import os

 from django.http import HttpResponse

 from django.contrib.auth.decorators import login_required

 @login_required

 def download(request):

     response = HttpResponse()

     response['Content-Disposition'] = 'attachment;filename=downfile.txt'    # downfile.txt为下载后的文件名

     full_path = os.path.join('/tmp', 'filename.txt')    # filename.txt为将要被下载的文件名

     if os.path.exists(full_path):

         response['Content-Length'] = os.path.getsize(full_path)    #  可不加

         content = open(full_path, 'rb').read()

         response.write(content)

         return response

     else:

         return HttpResponse(u'文件未找到')

<a href="download/downfile.txt">下载</a>

 1 url(r'^download/(?P.*)$', 'django.views.static.serve',{'document_root':文件路径}),