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Added function docstring

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wiredfool 2017-03-03 15:51:07 +00:00
parent 770c423181
commit abb7b7342e
1 changed files with 16 additions and 2 deletions
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18
PIL/GifImagePlugin.py
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@ -24,8 +24,7 @@
# See the README file for information on usage and redistribution. # See the README file for information on usage and redistribution.
# #
from . import Image, ImageFile, ImagePalette, \ from . import Image, ImageFile, ImagePalette, ImageChops, ImageSequence
ImageChops, ImageSequence
from ._binary import i8, i16le as i16, o8, o16le as o16 from ._binary import i8, i16le as i16, o8, o16le as o16
__version__ = "0.9" __version__ = "0.9"
@ -294,6 +293,21 @@ RAWMODE = {
def _normalize_mode(im, initial_call=False): def _normalize_mode(im, initial_call=False):
"""
Takes an image (or frame), returns an image in a mode that is appropriate
for saving in a Gif.
It may return the original image, or it may return an image converted to
palette or 'L' mode.
UNDONE: What is the point of mucking with the initial call palette, for
an image that shouldn't have a palette, or it would be a mode 'P' and
get returned in the RAWMODE clause.
:param im: Image object
:param initial_call: Default false, set to true for a single frame.
:returns: Image object
"""
if im.mode in RAWMODE: if im.mode in RAWMODE:
im.load() im.load()
return im return im