diff options
author | Biswakalyan Bhuyan <biswa@surgot.in> | 2022-11-14 16:43:12 +0530 |
---|---|---|
committer | Biswakalyan Bhuyan <biswa@surgot.in> | 2022-11-14 16:43:12 +0530 |
commit | d47f8b48935d258f4c5c3e2267911753bebd5214 (patch) | |
tree | 3ed04e75bc3fc7c8e4ce618f527565da1df630a1 /env/lib/python3.10/site-packages/PIL/features.py | |
parent | 9468226a9e2e2ab8cdd599f1d8538e860ca86120 (diff) | |
download | idcard-d47f8b48935d258f4c5c3e2267911753bebd5214.tar.gz idcard-d47f8b48935d258f4c5c3e2267911753bebd5214.tar.bz2 idcard-d47f8b48935d258f4c5c3e2267911753bebd5214.zip |
id card
Diffstat (limited to 'env/lib/python3.10/site-packages/PIL/features.py')
-rw-r--r-- | env/lib/python3.10/site-packages/PIL/features.py | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/env/lib/python3.10/site-packages/PIL/features.py b/env/lib/python3.10/site-packages/PIL/features.py deleted file mode 100644 index 3838568..0000000 --- a/env/lib/python3.10/site-packages/PIL/features.py +++ /dev/null @@ -1,320 +0,0 @@ -import collections -import os -import sys -import warnings - -import PIL - -from . import Image - -modules = { - "pil": ("PIL._imaging", "PILLOW_VERSION"), - "tkinter": ("PIL._tkinter_finder", "tk_version"), - "freetype2": ("PIL._imagingft", "freetype2_version"), - "littlecms2": ("PIL._imagingcms", "littlecms_version"), - "webp": ("PIL._webp", "webpdecoder_version"), -} - - -def check_module(feature): - """ - Checks if a module is available. - - :param feature: The module to check for. - :returns: ``True`` if available, ``False`` otherwise. - :raises ValueError: If the module is not defined in this version of Pillow. - """ - if not (feature in modules): - raise ValueError(f"Unknown module {feature}") - - module, ver = modules[feature] - - try: - __import__(module) - return True - except ImportError: - return False - - -def version_module(feature): - """ - :param feature: The module to check for. - :returns: - The loaded version number as a string, or ``None`` if unknown or not available. - :raises ValueError: If the module is not defined in this version of Pillow. - """ - if not check_module(feature): - return None - - module, ver = modules[feature] - - if ver is None: - return None - - return getattr(__import__(module, fromlist=[ver]), ver) - - -def get_supported_modules(): - """ - :returns: A list of all supported modules. - """ - return [f for f in modules if check_module(f)] - - -codecs = { - "jpg": ("jpeg", "jpeglib"), - "jpg_2000": ("jpeg2k", "jp2klib"), - "zlib": ("zip", "zlib"), - "libtiff": ("libtiff", "libtiff"), -} - - -def check_codec(feature): - """ - Checks if a codec is available. - - :param feature: The codec to check for. - :returns: ``True`` if available, ``False`` otherwise. - :raises ValueError: If the codec is not defined in this version of Pillow. - """ - if feature not in codecs: - raise ValueError(f"Unknown codec {feature}") - - codec, lib = codecs[feature] - - return codec + "_encoder" in dir(Image.core) - - -def version_codec(feature): - """ - :param feature: The codec to check for. - :returns: - The version number as a string, or ``None`` if not available. - Checked at compile time for ``jpg``, run-time otherwise. - :raises ValueError: If the codec is not defined in this version of Pillow. - """ - if not check_codec(feature): - return None - - codec, lib = codecs[feature] - - version = getattr(Image.core, lib + "_version") - - if feature == "libtiff": - return version.split("\n")[0].split("Version ")[1] - - return version - - -def get_supported_codecs(): - """ - :returns: A list of all supported codecs. - """ - return [f for f in codecs if check_codec(f)] - - -features = { - "webp_anim": ("PIL._webp", "HAVE_WEBPANIM", None), - "webp_mux": ("PIL._webp", "HAVE_WEBPMUX", None), - "transp_webp": ("PIL._webp", "HAVE_TRANSPARENCY", None), - "raqm": ("PIL._imagingft", "HAVE_RAQM", "raqm_version"), - "fribidi": ("PIL._imagingft", "HAVE_FRIBIDI", "fribidi_version"), - "harfbuzz": ("PIL._imagingft", "HAVE_HARFBUZZ", "harfbuzz_version"), - "libjpeg_turbo": ("PIL._imaging", "HAVE_LIBJPEGTURBO", "libjpeg_turbo_version"), - "libimagequant": ("PIL._imaging", "HAVE_LIBIMAGEQUANT", "imagequant_version"), - "xcb": ("PIL._imaging", "HAVE_XCB", None), -} - - -def check_feature(feature): - """ - Checks if a feature is available. - - :param feature: The feature to check for. - :returns: ``True`` if available, ``False`` if unavailable, ``None`` if unknown. - :raises ValueError: If the feature is not defined in this version of Pillow. - """ - if feature not in features: - raise ValueError(f"Unknown feature {feature}") - - module, flag, ver = features[feature] - - try: - imported_module = __import__(module, fromlist=["PIL"]) - return getattr(imported_module, flag) - except ImportError: - return None - - -def version_feature(feature): - """ - :param feature: The feature to check for. - :returns: The version number as a string, or ``None`` if not available. - :raises ValueError: If the feature is not defined in this version of Pillow. - """ - if not check_feature(feature): - return None - - module, flag, ver = features[feature] - - if ver is None: - return None - - return getattr(__import__(module, fromlist=[ver]), ver) - - -def get_supported_features(): - """ - :returns: A list of all supported features. - """ - return [f for f in features if check_feature(f)] - - -def check(feature): - """ - :param feature: A module, codec, or feature name. - :returns: - ``True`` if the module, codec, or feature is available, - ``False`` or ``None`` otherwise. - """ - - if feature in modules: - return check_module(feature) - if feature in codecs: - return check_codec(feature) - if feature in features: - return check_feature(feature) - warnings.warn(f"Unknown feature '{feature}'.", stacklevel=2) - return False - - -def version(feature): - """ - :param feature: - The module, codec, or feature to check for. - :returns: - The version number as a string, or ``None`` if unknown or not available. - """ - if feature in modules: - return version_module(feature) - if feature in codecs: - return version_codec(feature) - if feature in features: - return version_feature(feature) - return None - - -def get_supported(): - """ - :returns: A list of all supported modules, features, and codecs. - """ - - ret = get_supported_modules() - ret.extend(get_supported_features()) - ret.extend(get_supported_codecs()) - return ret - - -def pilinfo(out=None, supported_formats=True): - """ - Prints information about this installation of Pillow. - This function can be called with ``python3 -m PIL``. - - :param out: - The output stream to print to. Defaults to ``sys.stdout`` if ``None``. - :param supported_formats: - If ``True``, a list of all supported image file formats will be printed. - """ - - if out is None: - out = sys.stdout - - Image.init() - - print("-" * 68, file=out) - print(f"Pillow {PIL.__version__}", file=out) - py_version = sys.version.splitlines() - print(f"Python {py_version[0].strip()}", file=out) - for py_version in py_version[1:]: - print(f" {py_version.strip()}", file=out) - print("-" * 68, file=out) - print( - f"Python modules loaded from {os.path.dirname(Image.__file__)}", - file=out, - ) - print( - f"Binary modules loaded from {os.path.dirname(Image.core.__file__)}", - file=out, - ) - print("-" * 68, file=out) - - for name, feature in [ - ("pil", "PIL CORE"), - ("tkinter", "TKINTER"), - ("freetype2", "FREETYPE2"), - ("littlecms2", "LITTLECMS2"), - ("webp", "WEBP"), - ("transp_webp", "WEBP Transparency"), - ("webp_mux", "WEBPMUX"), - ("webp_anim", "WEBP Animation"), - ("jpg", "JPEG"), - ("jpg_2000", "OPENJPEG (JPEG2000)"), - ("zlib", "ZLIB (PNG/ZIP)"), - ("libtiff", "LIBTIFF"), - ("raqm", "RAQM (Bidirectional Text)"), - ("libimagequant", "LIBIMAGEQUANT (Quantization method)"), - ("xcb", "XCB (X protocol)"), - ]: - if check(name): - if name == "jpg" and check_feature("libjpeg_turbo"): - v = "libjpeg-turbo " + version_feature("libjpeg_turbo") - else: - v = version(name) - if v is not None: - version_static = name in ("pil", "jpg") - if name == "littlecms2": - # this check is also in src/_imagingcms.c:setup_module() - version_static = tuple(int(x) for x in v.split(".")) < (2, 7) - t = "compiled for" if version_static else "loaded" - if name == "raqm": - for f in ("fribidi", "harfbuzz"): - v2 = version_feature(f) - if v2 is not None: - v += f", {f} {v2}" - print("---", feature, "support ok,", t, v, file=out) - else: - print("---", feature, "support ok", file=out) - else: - print("***", feature, "support not installed", file=out) - print("-" * 68, file=out) - - if supported_formats: - extensions = collections.defaultdict(list) - for ext, i in Image.EXTENSION.items(): - extensions[i].append(ext) - - for i in sorted(Image.ID): - line = f"{i}" - if i in Image.MIME: - line = f"{line} {Image.MIME[i]}" - print(line, file=out) - - if i in extensions: - print( - "Extensions: {}".format(", ".join(sorted(extensions[i]))), file=out - ) - - features = [] - if i in Image.OPEN: - features.append("open") - if i in Image.SAVE: - features.append("save") - if i in Image.SAVE_ALL: - features.append("save_all") - if i in Image.DECODERS: - features.append("decode") - if i in Image.ENCODERS: - features.append("encode") - - print("Features: {}".format(", ".join(features)), file=out) - print("-" * 68, file=out) |