mirror of
https://github.com/python-pillow/Pillow.git
synced 2025-11-04 01:47:47 +03:00
33 lines
1.3 KiB
ReStructuredText
33 lines
1.3 KiB
ReStructuredText
2.8.0
|
|
-----
|
|
|
|
Open HTTP response objects with Image.open
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
HTTP response objects returned from ``urllib2.urlopen(url)`` or
|
|
``requests.get(url, stream=True).raw`` are 'file-like' but do not support ``.seek()``
|
|
operations. As a result PIL was unable to open them as images, requiring a wrap in
|
|
``cStringIO`` or ``BytesIO``.
|
|
|
|
Now new functionality has been added to ``Image.open()`` by way of an ``.seek(0)`` check and
|
|
catch on exception :py:exc:`AttributeError` or :py:exc:`io.UnsupportedOperation`. If this is caught we
|
|
attempt to wrap the object using ``io.BytesIO`` (which will only work on buffer-file-like
|
|
objects).
|
|
|
|
This allows opening of files using both ``urllib2`` and ``requests``, e.g.::
|
|
|
|
Image.open(urllib2.urlopen(url))
|
|
Image.open(requests.get(url, stream=True).raw)
|
|
|
|
If the response uses content-encoding (compression, either gzip or deflate) then this
|
|
will fail as both the urllib2 and requests raw file object will produce compressed data
|
|
in that case. Using Content-Encoding on images is rather non-sensical as most images are
|
|
already compressed, but it can still happen.
|
|
|
|
For requests the work-around is to set the decode_content attribute on the raw object to
|
|
True::
|
|
|
|
response = requests.get(url, stream=True)
|
|
response.raw.decode_content = True
|
|
image = Image.open(response.raw)
|