How to pass uploaded file into amazon s3? - amazon-s3

Question

I have this in my code:
size=128,128
#app.route('/',methods=['GET','POST'])
def upload():
print request.method
if request.method == 'POST':
file = request.files['image']
im = Image.open(file)
im.resize(size)
im.save("test.png","PNG")
f=open("test.png",'r')
conn = tinys3.Connection('AKIAI2GPQ','fAQxDLbvZcqhXvjd',tls=True)
conn.upload(im,f,"snappie.watermarks")
print "got file"
return redirect("https://www.google.com")
return render_template('index.html')
hopefully you can see that I am trying to handle the file upload from request.files, resize it, and then upload that to amazon s3. However right now its getting hung up on the conn.upload(im,f,"snappie.watermarks") line.
This is the error:
File "/home/alex/snappie/web/server.py", line 25, in upload
conn.upload(im,f,"snappie.watermarks")
File "/usr/local/lib/python2.7/dist-packages/tinys3/connection.py", line 152, in upload
return self.run(r)
File "/usr/local/lib/python2.7/dist-packages/tinys3/connection.py", line 233, in run
return self._handle_request(request)
File "/usr/local/lib/python2.7/dist-packages/tinys3/connection.py", line 255, in _handle_request
return request.run()
File "/usr/local/lib/python2.7/dist-packages/tinys3/request_factory.py", line 147, in run
headers['Content-Type'] = self.content_type or mimetypes.guess_type(self.key)[0] or 'application/octet-stream'
File "/usr/lib/python2.7/mimetypes.py", line 298, in guess_type
return _db.guess_type(url, strict)
File "/usr/lib/python2.7/mimetypes.py", line 114, in guess_type
scheme, url = urllib.splittype(url)
File "/usr/lib/python2.7/urllib.py", line 1074, in splittype
match = _typeprog.match(url)
TypeError: expected string or buffer
Apparently its having issues with one of those 3 arguments but I am not sure which one? I am also not sure I am handling the file correctly. Do I need to save the image and then re-open it in order to upload it to amazon s3? I do this because all the tinys3 examples do so, but my file is already open so perhaps its redundant?

Answer 1

It looks like your image argument might be mixed up. Here's the signature we want:
conn.upload(key, local_file, bucket)
tinys3 expects a string value for the key and an open file-like object for local_file. Try the following:
conn.upload("test.png", f, "snappie.watermarks")