Mercurial > repos > shellac > guppy_basecaller

annotate env/lib/python3.7/site-packages/galaxy/util/image_util.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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26e78fe6e8c4 "planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
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1 """Provides utilities for working with image files."""
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2 from __future__ import absolute_import
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3
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4 import imghdr
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5 import logging
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6
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7 try:
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8 import Image as PIL
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9 except ImportError:
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10 try:
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11 from PIL import Image as PIL
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12 except ImportError:
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13 PIL = None
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14
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15 log = logging.getLogger(__name__)
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16
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17
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18 def image_type(filename):
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19 fmt = None
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20 if PIL is not None:
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21 try:
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22 im = PIL.open(filename)
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23 fmt = im.format
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24 im.close()
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25 except Exception:
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26 # We continue to try with imghdr, so this is a rare case of an
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27 # exception we expect to happen frequently, so we're not logging
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28 pass
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29 if not fmt:
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30 fmt = imghdr.what(filename)
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31 if fmt:
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32 return fmt.upper()
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33 else:
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34 return False
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35
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36
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37 def check_image_type(filename, types):
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38 fmt = image_type(filename)
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39 if fmt in types:
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40 return True
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41 return False