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Changed documentation to refer to ImageSequence Iterator class [ci skip]

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This commit is contained in:
Andrew Murray 2016-04-16 11:43:28 +10:00
parent 89901e089c
commit ea3dcfda0c
1 changed files with 5 additions and 16 deletions
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docs/handbook/tutorial.rst
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@ -400,26 +400,15 @@ Note that most drivers in the current version of the library only allow you to
seek to the next frame (as in the above example). To rewind the file, you may
have to reopen it.
The following iterator class lets you use the for-statement to loop over the
sequence:
The following class lets you use the for-statement to loop over the sequence:
A sequence iterator class
^^^^^^^^^^^^^^^^^^^^^^^^^
Using the ImageSequence Iterator class
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
::
class ImageSequence:
def __init__(self, im):
self.im = im
def __getitem__(self, ix):
try:
if ix:
self.im.seek(ix)
return self.im
except EOFError:
raise IndexError # end of sequence
for frame in ImageSequence(im):
from PIL import ImageSequence
for frame in ImageSequence.Iterator(im):
# ...do something to frame...