Uploading FilesΒΆ
There are two parts necessary for handling file uploads. The first is to
make sure you have a form that's been setup correctly to accept files. This
means adding enctype
attribute to your form
element with the value of
multipart/form-data
. A very simple example would be a form that accepts
an mp3 file. Notice we've setup the form as previously explained and also
added an input
element of the file
type.
1 2 3 4 5 6 7 8 | <form action="/store_mp3_view" method="post" accept-charset="utf-8"
enctype="multipart/form-data">
<label for="mp3">Mp3</label>
<input id="mp3" name="mp3" type="file" value="" />
<input type="submit" value="submit" />
</form>
|
The second part is handling the file upload in your view callable (above,
assumed to answer on /store_mp3_view
). The uploaded file is added to the
request object as a cgi.FieldStorage
object accessible through the
request.POST
multidict. The two properties we're interested in are the
file
and filename
and we'll use those to write the file to disk:
import os
import shutil
from pyramid.response import Response
def store_mp3_view(request):
# ``filename`` contains the name of the file in string format.
#
# WARNING: Internet Explorer is known to send an absolute file
# *path* as the filename. This example is naive; it trusts
# user input.
filename = request.POST['mp3'].filename
# ``input_file`` contains the actual file data which needs to be
# stored somewhere.
input_file = request.POST['mp3'].file
# Using the filename like this without cleaning it is very
# insecure so please keep that in mind when writing your own
# file handling.
file_path = os.path.join('/tmp', filename)
with open(file_path, 'wb') as output_file:
shutil.copyfileobj(input_file, output_file)
return Response('OK')