#!/usr/bin/env python # > pyroma . # ------------------------------ # Checking . # Found Pillow # ------------------------------ # Final rating: 10/10 # Your cheese is so fresh most people think it's a cream: Mascarpone # ------------------------------ from __future__ import print_function import os import platform as plat import re import struct import subprocess import sys import warnings from distutils import ccompiler, sysconfig from distutils.command.build_ext import build_ext from setuptools import Extension, setup # monkey patch import hook. Even though flake8 says it's not used, it is. # comment this out to disable multi threaded builds. import mp_compile if sys.platform == "win32" and sys.version_info >= (3, 8): warnings.warn( "Pillow does not yet support Python {}.{} and does not yet provide " "prebuilt Windows binaries. We do not recommend building from " "source on Windows.".format(sys.version_info.major, sys.version_info.minor), RuntimeWarning) _IMAGING = ("decode", "encode", "map", "display", "outline", "path") _LIB_IMAGING = ( "Access", "AlphaComposite", "Resample", "Bands", "BcnDecode", "BitDecode", "Blend", "Chops", "ColorLUT", "Convert", "ConvertYCbCr", "Copy", "Crop", "Dib", "Draw", "Effects", "EpsEncode", "File", "Fill", "Filter", "FliDecode", "Geometry", "GetBBox", "GifDecode", "GifEncode", "HexDecode", "Histo", "JpegDecode", "JpegEncode", "Matrix", "ModeFilter", "Negative", "Offset", "Pack", "PackDecode", "Palette", "Paste", "Quant", "QuantOctree", "QuantHash", "QuantHeap", "PcdDecode", "PcxDecode", "PcxEncode", "Point", "RankFilter", "RawDecode", "RawEncode", "Storage", "SgiRleDecode", "SunRleDecode", "TgaRleDecode", "TgaRleEncode", "Unpack", "UnpackYCC", "UnsharpMask", "XbmDecode", "XbmEncode", "ZipDecode", "ZipEncode", "TiffDecode", "Jpeg2KDecode", "Jpeg2KEncode", "BoxBlur", "QuantPngQuant", "codec_fd") DEBUG = False class DependencyException(Exception): pass class RequiredDependencyException(Exception): pass PLATFORM_MINGW = 'mingw' in ccompiler.get_default_compiler() PLATFORM_PYPY = hasattr(sys, 'pypy_version_info') def _dbg(s, tp=None): if DEBUG: if tp: print(s % tp) return print(s) def _add_directory(path, subdir, where=None): if subdir is None: return subdir = os.path.realpath(subdir) if os.path.isdir(subdir) and subdir not in path: if where is None: _dbg('Appending path %s', subdir) path.append(subdir) else: _dbg('Inserting path %s', subdir) path.insert(where, subdir) elif subdir in path and where is not None: path.remove(subdir) path.insert(where, subdir) def _find_include_file(self, include): for directory in self.compiler.include_dirs: _dbg('Checking for include file %s in %s', (include, directory)) if os.path.isfile(os.path.join(directory, include)): _dbg('Found %s', include) return 1 return 0 def _find_library_file(self, library): ret = self.compiler.find_library_file(self.compiler.library_dirs, library) if ret: _dbg('Found library %s at %s', (library, ret)) else: _dbg("Couldn't find library %s in %s", (library, self.compiler.library_dirs)) return ret def _cmd_exists(cmd): return any( os.access(os.path.join(path, cmd), os.X_OK) for path in os.environ["PATH"].split(os.pathsep) ) def _read(file): with open(file, 'rb') as fp: return fp.read() def get_version(): version_file = 'src/PIL/_version.py' with open(version_file, 'r') as f: exec(compile(f.read(), version_file, 'exec')) return locals()['__version__'] try: import _tkinter except (ImportError, OSError): # pypy emits an oserror _tkinter = None NAME = 'Pillow' PILLOW_VERSION = get_version() JPEG_ROOT = None JPEG2K_ROOT = None ZLIB_ROOT = None IMAGEQUANT_ROOT = None TIFF_ROOT = None FREETYPE_ROOT = None LCMS_ROOT = None def _pkg_config(name): try: command = [ 'pkg-config', '--libs-only-L', name, '--cflags-only-I', name, ] if not DEBUG: command.append('--silence-errors') libs = subprocess.check_output(command).decode('utf8').split(' ') return libs[1][2:].strip(), libs[0][2:].strip() except Exception: pass class pil_build_ext(build_ext): class feature: features = ['zlib', 'jpeg', 'tiff', 'freetype', 'lcms', 'webp', 'webpmux', 'jpeg2000', 'imagequant'] required = {'jpeg', 'zlib'} def __init__(self): for f in self.features: setattr(self, f, None) def require(self, feat): return feat in self.required def want(self, feat): return getattr(self, feat) is None def __iter__(self): for x in self.features: yield x feature = feature() user_options = build_ext.user_options + [ ('disable-%s' % x, None, 'Disable support for %s' % x) for x in feature ] + [ ('enable-%s' % x, None, 'Enable support for %s' % x) for x in feature ] + [ ('disable-platform-guessing', None, 'Disable platform guessing on Linux'), ('debug', None, 'Debug logging') ] + [('add-imaging-libs=', None, 'Add libs to _imaging build')] def initialize_options(self): self.disable_platform_guessing = None self.add_imaging_libs = "" build_ext.initialize_options(self) for x in self.feature: setattr(self, 'disable_%s' % x, None) setattr(self, 'enable_%s' % x, None) def finalize_options(self): build_ext.finalize_options(self) if self.debug: global DEBUG DEBUG = True if sys.version_info >= (3, 5) and not self.parallel: # For Python < 3.5, we monkeypatch distutils to have parallel # builds. If --parallel (or -j) wasn't specified, we want to # reproduce the same behavior as before, that is, auto-detect the # number of jobs. self.parallel = mp_compile.MAX_PROCS for x in self.feature: if getattr(self, 'disable_%s' % x): setattr(self.feature, x, False) self.feature.required.discard(x) _dbg('Disabling %s', x) if getattr(self, 'enable_%s' % x): raise ValueError( 'Conflicting options: --enable-%s and --disable-%s' % (x, x)) if getattr(self, 'enable_%s' % x): _dbg('Requiring %s', x) self.feature.required.add(x) def build_extensions(self): library_dirs = [] include_dirs = [] _add_directory(include_dirs, "src/libImaging") pkg_config = None if _cmd_exists('pkg-config'): pkg_config = _pkg_config # # add configured kits for root_name, lib_name in dict(JPEG_ROOT="libjpeg", JPEG2K_ROOT="libopenjp2", TIFF_ROOT=("libtiff-5", "libtiff-4"), ZLIB_ROOT="zlib", FREETYPE_ROOT="freetype2", LCMS_ROOT="lcms2", IMAGEQUANT_ROOT="libimagequant" ).items(): root = globals()[root_name] if root is None and pkg_config: if isinstance(lib_name, tuple): for lib_name2 in lib_name: _dbg('Looking for `%s` using pkg-config.' % lib_name2) root = pkg_config(lib_name2) if root: break else: _dbg('Looking for `%s` using pkg-config.' % lib_name) root = pkg_config(lib_name) if isinstance(root, tuple): lib_root, include_root = root else: lib_root = include_root = root _add_directory(library_dirs, lib_root) _add_directory(include_dirs, include_root) # respect CFLAGS/LDFLAGS for k in ('CFLAGS', 'LDFLAGS'): if k in os.environ: for match in re.finditer(r'-I([^\s]+)', os.environ[k]): _add_directory(include_dirs, match.group(1)) for match in re.finditer(r'-L([^\s]+)', os.environ[k]): _add_directory(library_dirs, match.group(1)) # include, rpath, if set as environment variables: for k in ('C_INCLUDE_PATH', 'CPATH', 'INCLUDE'): if k in os.environ: for d in os.environ[k].split(os.path.pathsep): _add_directory(include_dirs, d) for k in ('LD_RUN_PATH', 'LIBRARY_PATH', 'LIB'): if k in os.environ: for d in os.environ[k].split(os.path.pathsep): _add_directory(library_dirs, d) prefix = sysconfig.get_config_var("prefix") if prefix: _add_directory(library_dirs, os.path.join(prefix, "lib")) _add_directory(include_dirs, os.path.join(prefix, "include")) # # add platform directories if self.disable_platform_guessing: pass elif sys.platform == "cygwin": # pythonX.Y.dll.a is in the /usr/lib/pythonX.Y/config directory _add_directory(library_dirs, os.path.join("/usr/lib", "python%s" % sys.version[:3], "config")) elif sys.platform == "darwin": # attempt to make sure we pick freetype2 over other versions _add_directory(include_dirs, "/sw/include/freetype2") _add_directory(include_dirs, "/sw/lib/freetype2/include") # fink installation directories _add_directory(library_dirs, "/sw/lib") _add_directory(include_dirs, "/sw/include") # darwin ports installation directories _add_directory(library_dirs, "/opt/local/lib") _add_directory(include_dirs, "/opt/local/include") # if Homebrew is installed, use its lib and include directories try: prefix = subprocess.check_output(['brew', '--prefix']).strip( ).decode('latin1') except Exception: # Homebrew not installed prefix = None ft_prefix = None if prefix: # add Homebrew's include and lib directories _add_directory(library_dirs, os.path.join(prefix, 'lib')) _add_directory(include_dirs, os.path.join(prefix, 'include')) ft_prefix = os.path.join(prefix, 'opt', 'freetype') if ft_prefix and os.path.isdir(ft_prefix): # freetype might not be linked into Homebrew's prefix _add_directory(library_dirs, os.path.join(ft_prefix, 'lib')) _add_directory(include_dirs, os.path.join(ft_prefix, 'include')) else: # fall back to freetype from XQuartz if # Homebrew's freetype is missing _add_directory(library_dirs, "/usr/X11/lib") _add_directory(include_dirs, "/usr/X11/include") elif sys.platform.startswith("linux"): arch_tp = (plat.processor(), plat.architecture()[0]) # This should be correct on debian derivatives. if os.path.exists('/etc/debian_version'): # If this doesn't work, don't just silently patch # downstream because it's going to break when people # try to build pillow from source instead of # installing from the system packages. self.add_multiarch_paths() elif arch_tp == ("x86_64", "32bit"): # Special Case: 32-bit build on 64-bit machine. _add_directory(library_dirs, "/usr/lib/i386-linux-gnu") else: libdirs = { 'x86_64': ["/lib64", "/usr/lib64", "/usr/lib/x86_64-linux-gnu"], '64bit': ["/lib64", "/usr/lib64", "/usr/lib/x86_64-linux-gnu"], 'i386': ["/usr/lib/i386-linux-gnu"], 'i686': ["/usr/lib/i386-linux-gnu"], '32bit': ["/usr/lib/i386-linux-gnu"], 'aarch64': ["/usr/lib64", "/usr/lib/aarch64-linux-gnu"], 'arm': ["/usr/lib/arm-linux-gnueabi"], 'armv71': ["/usr/lib/arm-linux-gnueabi"], 'armv7l': ["/usr/lib"], 'ppc64': ["/usr/lib64", "/usr/lib/ppc64-linux-gnu", "/usr/lib/powerpc64-linux-gnu"], 'ppc64le': ["/usr/lib64"], 'ppc': ["/usr/lib/ppc-linux-gnu", "/usr/lib/powerpc-linux-gnu"], 's390x': ["/usr/lib64", "/usr/lib/s390x-linux-gnu"], 's390': ["/usr/lib/s390-linux-gnu"], } for platform_ in arch_tp: dirs = libdirs.get(platform_, None) if not dirs: continue for path in dirs: _add_directory(library_dirs, path) break else: raise ValueError( "Unable to identify Linux platform: `%s`" % platform_) # termux support for android. # system libraries (zlib) are installed in /system/lib # headers are at $PREFIX/include # user libs are at $PREFIX/lib if os.environ.get('ANDROID_ROOT', None): _add_directory(library_dirs, os.path.join(os.environ['ANDROID_ROOT'], 'lib')) elif sys.platform.startswith("gnu"): self.add_multiarch_paths() elif sys.platform.startswith("freebsd"): _add_directory(library_dirs, "/usr/local/lib") _add_directory(include_dirs, "/usr/local/include") elif sys.platform.startswith("netbsd"): _add_directory(library_dirs, "/usr/pkg/lib") _add_directory(include_dirs, "/usr/pkg/include") elif sys.platform.startswith("sunos5"): _add_directory(library_dirs, "/opt/local/lib") _add_directory(include_dirs, "/opt/local/include") # FIXME: check /opt/stuff directories here? # standard locations if not self.disable_platform_guessing: _add_directory(library_dirs, "/usr/local/lib") _add_directory(include_dirs, "/usr/local/include") _add_directory(library_dirs, "/usr/lib") _add_directory(include_dirs, "/usr/include") # alpine, at least _add_directory(library_dirs, "/lib") # on Windows, look for the OpenJPEG libraries in the location that # the official installer puts them if sys.platform == "win32": program_files = os.environ.get('ProgramFiles', '') best_version = (0, 0) best_path = None for name in os.listdir(program_files): if name.startswith('OpenJPEG '): version = tuple(int(x) for x in name[9:].strip().split('.')) if version > best_version: best_version = version best_path = os.path.join(program_files, name) if best_path: _dbg('Adding %s to search list', best_path) _add_directory(library_dirs, os.path.join(best_path, 'lib')) _add_directory(include_dirs, os.path.join(best_path, 'include')) # # insert new dirs *before* default libs, to avoid conflicts # between Python PYD stub libs and real libraries self.compiler.library_dirs = library_dirs + self.compiler.library_dirs self.compiler.include_dirs = include_dirs + self.compiler.include_dirs # # look for available libraries feature = self.feature if feature.want('zlib'): _dbg('Looking for zlib') if _find_include_file(self, "zlib.h"): if _find_library_file(self, "z"): feature.zlib = "z" elif (sys.platform == "win32" and _find_library_file(self, "zlib")): feature.zlib = "zlib" # alternative name if feature.want('jpeg'): _dbg('Looking for jpeg') if _find_include_file(self, "jpeglib.h"): if _find_library_file(self, "jpeg"): feature.jpeg = "jpeg" elif (sys.platform == "win32" and _find_library_file(self, "libjpeg")): feature.jpeg = "libjpeg" # alternative name feature.openjpeg_version = None if feature.want('jpeg2000'): _dbg('Looking for jpeg2000') best_version = None best_path = None # Find the best version for directory in self.compiler.include_dirs: _dbg('Checking for openjpeg-#.# in %s', directory) try: listdir = os.listdir(directory) except Exception: # WindowsError, FileNotFoundError continue for name in listdir: if name.startswith('openjpeg-') and \ os.path.isfile(os.path.join(directory, name, 'openjpeg.h')): _dbg('Found openjpeg.h in %s/%s', (directory, name)) version = tuple(int(x) for x in name[9:].split('.')) if best_version is None or version > best_version: best_version = version best_path = os.path.join(directory, name) _dbg('Best openjpeg version %s so far in %s', (best_version, best_path)) if best_version and _find_library_file(self, 'openjp2'): # Add the directory to the include path so we can include # rather than having to cope with the versioned # include path # FIXME (melvyn-sopacua): # At this point it's possible that best_path is already in # self.compiler.include_dirs. Should investigate how that is # possible. _add_directory(self.compiler.include_dirs, best_path, 0) feature.jpeg2000 = 'openjp2' feature.openjpeg_version = '.'.join(str(x) for x in best_version) if feature.want('imagequant'): _dbg('Looking for imagequant') if _find_include_file(self, 'libimagequant.h'): if _find_library_file(self, "imagequant"): feature.imagequant = "imagequant" elif _find_library_file(self, "libimagequant"): feature.imagequant = "libimagequant" if feature.want('tiff'): _dbg('Looking for tiff') if _find_include_file(self, 'tiff.h'): if _find_library_file(self, "tiff"): feature.tiff = "tiff" if (sys.platform in ["win32", "darwin"] and _find_library_file(self, "libtiff")): feature.tiff = "libtiff" if feature.want('freetype'): _dbg('Looking for freetype') if _find_library_file(self, "freetype"): # look for freetype2 include files freetype_version = 0 for subdir in self.compiler.include_dirs: _dbg('Checking for include file %s in %s', ("ft2build.h", subdir)) if os.path.isfile(os.path.join(subdir, "ft2build.h")): _dbg('Found %s in %s', ("ft2build.h", subdir)) freetype_version = 21 subdir = os.path.join(subdir, "freetype2") break subdir = os.path.join(subdir, "freetype2") _dbg('Checking for include file %s in %s', ("ft2build.h", subdir)) if os.path.isfile(os.path.join(subdir, "ft2build.h")): _dbg('Found %s in %s', ("ft2build.h", subdir)) freetype_version = 21 break if freetype_version: feature.freetype = "freetype" if subdir: _add_directory(self.compiler.include_dirs, subdir, 0) if feature.want('lcms'): _dbg('Looking for lcms') if _find_include_file(self, "lcms2.h"): if _find_library_file(self, "lcms2"): feature.lcms = "lcms2" elif _find_library_file(self, "lcms2_static"): # alternate Windows name. feature.lcms = "lcms2_static" if feature.want('webp'): _dbg('Looking for webp') if (_find_include_file(self, "webp/encode.h") and _find_include_file(self, "webp/decode.h")): # In Google's precompiled zip it is call "libwebp": if _find_library_file(self, "webp"): feature.webp = "webp" elif _find_library_file(self, "libwebp"): feature.webp = "libwebp" if feature.want('webpmux'): _dbg('Looking for webpmux') if (_find_include_file(self, "webp/mux.h") and _find_include_file(self, "webp/demux.h")): if (_find_library_file(self, "webpmux") and _find_library_file(self, "webpdemux")): feature.webpmux = "webpmux" if (_find_library_file(self, "libwebpmux") and _find_library_file(self, "libwebpdemux")): feature.webpmux = "libwebpmux" for f in feature: if not getattr(feature, f) and feature.require(f): if f in ('jpeg', 'zlib'): raise RequiredDependencyException(f) raise DependencyException(f) # # core library files = ["src/_imaging.c"] for src_file in _IMAGING: files.append("src/" + src_file + ".c") for src_file in _LIB_IMAGING: files.append(os.path.join("src/libImaging", src_file + ".c")) libs = self.add_imaging_libs.split() defs = [] if feature.jpeg: libs.append(feature.jpeg) defs.append(("HAVE_LIBJPEG", None)) if feature.jpeg2000: libs.append(feature.jpeg2000) defs.append(("HAVE_OPENJPEG", None)) if sys.platform == "win32": defs.append(("OPJ_STATIC", None)) if feature.zlib: libs.append(feature.zlib) defs.append(("HAVE_LIBZ", None)) if feature.imagequant: libs.append(feature.imagequant) defs.append(("HAVE_LIBIMAGEQUANT", None)) if feature.tiff: libs.append(feature.tiff) defs.append(("HAVE_LIBTIFF", None)) if sys.platform == "win32": libs.extend(["kernel32", "user32", "gdi32"]) if struct.unpack("h", "\0\1".encode('ascii'))[0] == 1: defs.append(("WORDS_BIGENDIAN", None)) if sys.platform == "win32" and not (PLATFORM_PYPY or PLATFORM_MINGW): defs.append(("PILLOW_VERSION", '"\\"%s\\""' % PILLOW_VERSION)) else: defs.append(("PILLOW_VERSION", '"%s"' % PILLOW_VERSION)) exts = [(Extension("PIL._imaging", files, libraries=libs, define_macros=defs))] # # additional libraries if feature.freetype: libs = ["freetype"] defs = [] exts.append(Extension( "PIL._imagingft", ["src/_imagingft.c"], libraries=libs, define_macros=defs)) if feature.lcms: extra = [] if sys.platform == "win32": extra.extend(["user32", "gdi32"]) exts.append(Extension("PIL._imagingcms", ["src/_imagingcms.c"], libraries=[feature.lcms] + extra)) if feature.webp: libs = [feature.webp] defs = [] if feature.webpmux: defs.append(("HAVE_WEBPMUX", None)) libs.append(feature.webpmux) libs.append(feature.webpmux.replace('pmux', 'pdemux')) exts.append(Extension("PIL._webp", ["src/_webp.c"], libraries=libs, define_macros=defs)) tk_libs = ['psapi'] if sys.platform == 'win32' else [] exts.append(Extension("PIL._imagingtk", ["src/_imagingtk.c", "src/Tk/tkImaging.c"], include_dirs=['src/Tk'], libraries=tk_libs)) exts.append(Extension("PIL._imagingmath", ["src/_imagingmath.c"])) exts.append(Extension("PIL._imagingmorph", ["src/_imagingmorph.c"])) self.extensions[:] = exts build_ext.build_extensions(self) # # sanity checks self.summary_report(feature) def summary_report(self, feature): print("-" * 68) print("PIL SETUP SUMMARY") print("-" * 68) print("version Pillow %s" % PILLOW_VERSION) v = sys.version.split("[") print("platform %s %s" % (sys.platform, v[0].strip())) for v in v[1:]: print(" [%s" % v.strip()) print("-" * 68) options = [ (feature.jpeg, "JPEG"), (feature.jpeg2000, "OPENJPEG (JPEG2000)", feature.openjpeg_version), (feature.zlib, "ZLIB (PNG/ZIP)"), (feature.imagequant, "LIBIMAGEQUANT"), (feature.tiff, "LIBTIFF"), (feature.freetype, "FREETYPE2"), (feature.lcms, "LITTLECMS2"), (feature.webp, "WEBP"), (feature.webpmux, "WEBPMUX"), ] all = 1 for option in options: if option[0]: version = '' if len(option) >= 3 and option[2]: version = ' (%s)' % option[2] print("--- %s support available%s" % (option[1], version)) else: print("*** %s support not available" % option[1]) all = 0 print("-" * 68) if not all: print("To add a missing option, make sure you have the required") print("library and headers.") print("See https://pillow.readthedocs.io/en/latest/installation." "html#building-from-source") print("") print("To check the build, run the selftest.py script.") print("") # https://hg.python.org/users/barry/rev/7e8deab93d5a def add_multiarch_paths(self): # Debian/Ubuntu multiarch support. # https://wiki.ubuntu.com/MultiarchSpec # self.build_temp tmpfile = os.path.join(self.build_temp, 'multiarch') if not os.path.exists(self.build_temp): os.makedirs(self.build_temp) with open(tmpfile, 'wb') as fp: try: ret = subprocess.call(['dpkg-architecture', '-qDEB_HOST_MULTIARCH'], stdout=fp) except Exception: return try: if ret >> 8 == 0: with open(tmpfile, 'r') as fp: multiarch_path_component = fp.readline().strip() _add_directory(self.compiler.library_dirs, '/usr/lib/' + multiarch_path_component) _add_directory(self.compiler.include_dirs, '/usr/include/' + multiarch_path_component) finally: os.unlink(tmpfile) def debug_build(): return hasattr(sys, 'gettotalrefcount') needs_pytest = {'pytest', 'test', 'ptr'}.intersection(sys.argv) pytest_runner = ['pytest-runner'] if needs_pytest else [] try: setup(name=NAME, version=PILLOW_VERSION, description='Python Imaging Library (Fork)', long_description=_read('README.rst').decode('utf-8'), author='Alex Clark (Fork Author)', author_email='aclark@aclark.net', url='http://python-pillow.org', classifiers=[ "Development Status :: 6 - Mature", "Topic :: Multimedia :: Graphics", "Topic :: Multimedia :: Graphics :: Capture :: Digital Camera", "Topic :: Multimedia :: Graphics :: Capture :: Screen Capture", "Topic :: Multimedia :: Graphics :: Graphics Conversion", "Topic :: Multimedia :: Graphics :: Viewers", "License :: Other/Proprietary License", "Programming Language :: Python :: 2", "Programming Language :: Python :: 2.7", "Programming Language :: Python :: 3", "Programming Language :: Python :: 3.4", "Programming Language :: Python :: 3.5", "Programming Language :: Python :: 3.6", "Programming Language :: Python :: 3.7", "Programming Language :: Python :: Implementation :: CPython", "Programming Language :: Python :: Implementation :: PyPy", ], python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*", cmdclass={"build_ext": pil_build_ext}, ext_modules=[Extension("PIL._imaging", ["_imaging.c"])], include_package_data=True, setup_requires=pytest_runner, tests_require=['pytest'], packages=["PIL"], package_dir={'': 'src'}, keywords=["Imaging", ], license='Standard PIL License', zip_safe=not (debug_build() or PLATFORM_MINGW), ) except RequiredDependencyException as err: msg = """ The headers or library files could not be found for %s, a required dependency when compiling Pillow from source. Please see the install instructions at: https://pillow.readthedocs.io/en/latest/installation.html """ % (str(err)) sys.stderr.write(msg) raise RequiredDependencyException(msg) except DependencyException as err: msg = """ The headers or library files could not be found for %s, which was requested by the option flag --enable-%s """ % (str(err), str(err)) sys.stderr.write(msg) raise DependencyException(msg)