Viewing file:  features.py (1.58 KB) -rw-r--r--
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from PIL import Image
modules = {
"pil": "PIL._imaging",
"tkinter": "PIL._imagingtk",
"freetype2": "PIL._imagingft",
"littlecms2": "PIL._imagingcms",
"webp": "PIL._webp",
"transp_webp": ("WEBP", "WebPDecoderBuggyAlpha")
}
def check_module(feature):
if feature not in modules:
raise ValueError("Unknown module %s" % feature)
module = modules[feature]
method_to_call = None
if type(module) is tuple:
module, method_to_call = module
try:
imported_module = __import__(module)
except ImportError:
# If a method is being checked, None means that
# rather than the method failing, the module required for the method
# failed to be imported first
return None if method_to_call else False
if method_to_call:
method = getattr(imported_module, method_to_call)
return method() is True
else:
return True
def get_supported_modules():
supported_modules = []
for feature in modules:
if check_module(feature):
supported_modules.append(feature)
return supported_modules
codecs = {
"jpg": "jpeg",
"jpg_2000": "jpeg2k",
"zlib": "zip",
"libtiff": "libtiff"
}
def check_codec(feature):
if feature not in codecs:
raise ValueError("Unknown codec %s" % feature)
codec = codecs[feature]
return codec + "_encoder" in dir(Image.core)
def get_supported_codecs():
supported_codecs = []
for feature in codecs:
if check_codec(feature):
supported_codecs.append(feature)
return supported_codecs
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