Hi,
Le 31/12/2012 03:13, Shu Lin a écrit :
Hi,
If I have other objects other than String, which is holding a jpg or png
file, I like to return it as Response body, how can I do?
I tried a piece of code like this:
mimetype = image/png
body = fs.open(access_path, 'rb')
return Response(body, content_type=mimetype)
Here "body" is an buffer object from a kind of filesystem which
represents the content in the file. Since, it doesn't support len() like
String. I can't passed the Response check for len(). I tried app_iter
also like this:
return Response(app_iter=[body], content_type=mimetype)
But, if I did like this, the wsgiref will complain about the body is not
String type.
===========
2012-12-29 23:33:59,521 INFO [fs.tahoelafs][MainThread] (4363489744)
Opening file /family/Ada/IMG_0355.JPG in mode rb
Traceback (most recent call last):
File
"/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py",
line 86, in run
self.finish_response()
File
"/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py",
line 127, in finish_response
self.write(data)
File
"/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/wsgiref/handlers.py",
line 202, in write
assert type(data) is StringType,"write() argument must be string"
AssertionError: write() argument must be string
==========
Is there anyway to work around this?
You can use wsgiref's FileWrapper:
http://docs.python.org/2/library/wsgiref.html#wsgiref.util.FileWrapper
>>> resp.app_iter=FileWrapper(open(path, 'rb'))
You can also have a look at wsgithumb:
https://github.com/gawel/wsgithumb/blob/master/wsgithumb/utils.py#L126
You can just use it. Or at least get some responses for your problem by
reading the code.
Thanks a lot in advance!
-Shu
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