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68 lines
1.6 KiB
Python
68 lines
1.6 KiB
Python
from PIL import Image
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modules = {
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"pil": "PIL._imaging",
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"tkinter": "PIL._imagingtk",
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"freetype2": "PIL._imagingft",
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"littlecms2": "PIL._imagingcms",
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"webp": "PIL._webp",
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"transp_webp": ("WEBP", "WebPDecoderBuggyAlpha")
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}
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def check_module(feature):
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if feature not in modules:
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raise ValueError("Unknown module %s" % feature)
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module = modules[feature]
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method_to_call = None
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if isinstance(module, tuple):
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module, method_to_call = module
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try:
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imported_module = __import__(module)
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except ImportError:
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# If a method is being checked, None means that
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# rather than the method failing, the module required for the method
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# failed to be imported first
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return None if method_to_call else False
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if method_to_call:
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method = getattr(imported_module, method_to_call)
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return method() is True
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else:
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return True
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def get_supported_modules():
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supported_modules = []
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for feature in modules:
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if check_module(feature):
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supported_modules.append(feature)
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return supported_modules
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codecs = {
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"jpg": "jpeg",
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"jpg_2000": "jpeg2k",
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"zlib": "zip",
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"libtiff": "libtiff"
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}
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def check_codec(feature):
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if feature not in codecs:
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raise ValueError("Unknown codec %s" % feature)
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codec = codecs[feature]
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return codec + "_encoder" in dir(Image.core)
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def get_supported_codecs():
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supported_codecs = []
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for feature in codecs:
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if check_codec(feature):
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supported_codecs.append(feature)
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return supported_codecs
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