"""

cache_dir = os.environ.get('XDG_CACHE_HOME')

if not cache_dir:

cache_dir = os.path.expanduser('~/.cache')

if cache_dir.startswith('~/'): # Expansion failed.

return None

"""Compute the sha256 hash of *data*."""

hasher = hashlib.sha256()

hasher.update(data)

"""

cache_dir = _get_xdg_cache_dir()

if cache_dir is not None: # Try to read from cache.

try:

data = (cache_dir / sha).read_bytes()

except IOError:

pass

else:

if _get_hash(data) == sha:

return BytesIO(data)

# jQueryUI's website blocks direct downloads from urllib.request's

# default User-Agent, but not (for example) wget; so I don't feel too

# bad passing in an empty User-Agent.

with urllib.request.urlopen(

urllib.request.Request(url, headers={"User-Agent": ""}),

context=_get_ssl_context()) as req:

data = req.read()

file_sha = _get_hash(data)

if file_sha != sha:

raise Exception(

f"The downloaded file does not match the expected sha. {url} was "

f"expected to have {sha} but it had {file_sha}")

if cache_dir is not None: # Try to cache the downloaded file.

try:

cache_dir.mkdir(parents=True, exist_ok=True)

with open(cache_dir / sha, "xb") as fout:

fout.write(data)

except IOError:

pass

"""

toplevel = Path("build", dirname)

if not toplevel.exists(): # Download it or load it from cache.

Path("build").mkdir(exist_ok=True)

for url in urls:

try:

tar_contents = get_from_cache_or_download(url, sha)

break

except Exception:

pass

else:

raise IOError(

f"Failed to download any of the following: {urls}. "

f"Please download one of these urls and extract it into "

f"'build/' at the top-level of the source repository.")

print("Extracting {}".format(urllib.parse.urlparse(url).path))

with tarfile.open(fileobj=tar_contents, mode="r:gz") as tgz:

if os.path.commonpath(tgz.getnames()) != dirname:

raise IOError(

f"The downloaded tgz file was expected to have {dirname} "

f"as sole top-level directory, but that is not the case")

tgz.extractall("build")

'2.6.1':

'0a3c7dfbda6da1e8fce29232e8e96d987ababbbf71ebc8c75659e4132c367014',

'2.6.2':

'8da42fc4904e600be4b692555ae1dcbf532897da9c5b9fb5ebd3758c77e5c2d4',

'2.6.3':

'7942096c40ee6fea882bd4207667ad3f24bff568b96b10fd3885e11a7baad9a3',

'2.6.4':

'27f0e38347a1850ad57f84fc4dfed68ba0bc30c96a6fa6138ef84d485dd9a8d7',

'2.6.5':

'3bb24add9b9ec53636a63ea8e867ed978c4f8fdd8f1fa5ccfd41171163d4249a',

'2.7':

'7b657d5f872b0ab56461f3bd310bd1c5ec64619bd15f0d8e08282d494d9cfea4',

'2.7.1':

'162ef25aa64480b1189cdb261228e6c5c44f212aac4b4621e28cf2157efb59f5',

'2.8':

'33a28fabac471891d0523033e99c0005b95e5618dc8ffa7fa47f9dadcacb1c9b',

'2.8.1':

'876711d064a6a1bd74beb18dd37f219af26100f72daaebd2d86cb493d7cd7ec6',

'2.9':

'bf380e4d7c4f3b5b1c1a7b2bf3abb967bda5e9ab480d0df656e0e08c5019c5e6',

'2.9.1':

'ec391504e55498adceb30baceebd147a6e963f636eb617424bcfc47a169898ce',

'2.10.0':

'955e17244e9b38adb0c98df66abb50467312e6bb70eac07e49ce6bd1a20e809a',

'2.10.1':

'3a60d391fd579440561bf0e7f31af2222bc610ad6ce4d9d7bd2165bca8669110',

'backend': config.get('rc_options', 'backend', fallback=None),

'system_freetype': config.getboolean(

'libs', 'system_freetype', fallback=sys.platform.startswith('aix')),

'system_qhull': config.getboolean(

'libs', 'system_qhull', fallback=False),

initial_indent = "%12s: " % package

indent = ' ' * 18

print_raw(textwrap.fill(str(status), width=80,

initial_indent=initial_indent,

"""

if sys.platform == 'win32':

return None

pkg_config = os.environ.get('PKG_CONFIG') or 'pkg-config'

if shutil.which(pkg_config) is None:

print(

"IMPORTANT WARNING:\n"

" pkg-config is not installed.\n"

" Matplotlib may not be able to find some of its dependencies.")

return None

pkg_config_path = sysconfig.get_config_var('LIBDIR')

if pkg_config_path is not None:

pkg_config_path = os.path.join(pkg_config_path, 'pkgconfig')

try:

os.environ['PKG_CONFIG_PATH'] += ':' + pkg_config_path

except KeyError:

os.environ['PKG_CONFIG_PATH'] = pkg_config_path

ext, package,

atleast_version=None, alt_exec=None, default_libraries=()):

"""Add parameters to the given *ext* for the given *package*."""

# First, try to get the flags from pkg-config.

pkg_config = get_pkg_config()

cmd = [pkg_config, package] if pkg_config else alt_exec

if cmd is not None:

try:

if pkg_config and atleast_version:

subprocess.check_call(

[*cmd, f"--atleast-version={atleast_version}"])

# Use sys.getfilesystemencoding() to allow round-tripping

# when passed back to later subprocess calls; do not use

# locale.getpreferredencoding() which universal_newlines=True

# would do.

cflags = shlex.split(

os.fsdecode(subprocess.check_output([*cmd, "--cflags"])))

libs = shlex.split(

os.fsdecode(subprocess.check_output([*cmd, "--libs"])))

except (OSError, subprocess.CalledProcessError):

pass

else:

ext.extra_compile_args.extend(cflags)

ext.extra_link_args.extend(libs)

return

# If that fails, fall back on the defaults.

# conda Windows header and library paths.

# https://github.com/conda/conda/issues/2312 re: getting the env dir.

if sys.platform == 'win32':

conda_env_path = (os.getenv('CONDA_PREFIX') # conda >= 4.1

or os.getenv('CONDA_DEFAULT_ENV')) # conda < 4.1

if conda_env_path and os.path.isdir(conda_env_path):

conda_env_path = Path(conda_env_path)

ext.include_dirs.append(str(conda_env_path / "Library/include"))

ext.library_dirs.append(str(conda_env_path / "Library/lib"))

# Default linked libs.

"""

def check(self):

"""

def get_package_data(self):

"""

return {}

def get_extensions(self):

"""

return []

def do_custom_build(self, env):

"""

default_config = True

def check(self):

"""

if config.getboolean("packages", self.name,

fallback=self.default_config):

return "installing"

else: # Configuration opt-out by user

name = "platform"

def check(self):

name = "python"

def check(self):

name = "matplotlib"

def get_package_data(self):

return {

'matplotlib': [

'mpl-data/matplotlibrc',

*_pkg_data_helper('matplotlib', 'mpl-data'),

*_pkg_data_helper('matplotlib', 'backends/web_backend'),

'*.dll', # Only actually matters on Windows.

],

}

def get_extensions(self):

# agg

ext = Extension(

"matplotlib.backends._backend_agg", [

"src/py_converters.cpp",

"src/_backend_agg.cpp",

"src/_backend_agg_wrapper.cpp",

])

add_numpy_flags(ext)

add_libagg_flags_and_sources(ext)

FreeType.add_flags(ext)

yield ext

# c_internal_utils

ext = Extension(

"matplotlib._c_internal_utils", ["src/_c_internal_utils.c"],

libraries=({

"linux": ["dl"],

"win32": ["ole32", "shell32", "user32"],

}.get(sys.platform, [])))

yield ext

# contour

ext = Extension(

"matplotlib._contour", [

"src/_contour.cpp",

"src/_contour_wrapper.cpp",

"src/py_converters.cpp",

])

add_numpy_flags(ext)

add_libagg_flags(ext)

yield ext

# ft2font

ext = Extension(

"matplotlib.ft2font", [

"src/ft2font.cpp",

"src/ft2font_wrapper.cpp",

"src/py_converters.cpp",

])

FreeType.add_flags(ext)

add_numpy_flags(ext)

add_libagg_flags(ext)

yield ext

# image

ext = Extension(

"matplotlib._image", [

"src/_image_wrapper.cpp",

"src/py_converters.cpp",

])

add_numpy_flags(ext)

add_libagg_flags_and_sources(ext)

yield ext

# path

ext = Extension(

"matplotlib._path", [

"src/py_converters.cpp",

"src/_path_wrapper.cpp",

])

add_numpy_flags(ext)

add_libagg_flags_and_sources(ext)

yield ext

# qhull

ext = Extension(

"matplotlib._qhull", ["src/qhull_wrap.cpp"],

define_macros=[("MPL_DEVNULL", os.devnull)])

add_numpy_flags(ext)

Qhull.add_flags(ext)

yield ext

# tkagg

ext = Extension(

"matplotlib.backends._tkagg", [

"src/_tkagg.cpp",

],

include_dirs=["src"],

# psapi library needed for finding Tcl/Tk at run time.

libraries={"linux": ["dl"], "win32": ["comctl32", "psapi"],

"cygwin": ["comctl32", "psapi"]}.get(sys.platform, []),

extra_link_args={"win32": ["-mwindows"]}.get(sys.platform, []))

add_numpy_flags(ext)

add_libagg_flags(ext)

yield ext

# tri

ext = Extension(

"matplotlib._tri", [

"src/tri/_tri.cpp",

"src/tri/_tri_wrapper.cpp",

])

add_numpy_flags(ext)

yield ext

# ttconv

ext = Extension(

"matplotlib._ttconv", [

"src/_ttconv.cpp",

"extern/ttconv/pprdrv_tt.cpp",

"extern/ttconv/pprdrv_tt2.cpp",

"extern/ttconv/ttutil.cpp",

],

include_dirs=["extern"])

add_numpy_flags(ext)

name = "tests"

default_config = False

def get_package_data(self):

return {

'matplotlib': [

*_pkg_data_helper('matplotlib', 'tests/baseline_images'),

*_pkg_data_helper('matplotlib', 'tests/tinypages'),

'tests/cmr10.pfb',

'tests/mpltest.ttf',

],

'mpl_toolkits': [

*_pkg_data_helper('mpl_toolkits', 'tests/baseline_images'),

]

import numpy as np

ext.include_dirs.append(np.get_include())

ext.define_macros.extend([

# Ensure that PY_ARRAY_UNIQUE_SYMBOL is uniquely defined for each

# extension.

('PY_ARRAY_UNIQUE_SYMBOL',

'MPL_' + ext.name.replace('.', '_') + '_ARRAY_API'),

('NPY_NO_DEPRECATED_API', 'NPY_1_7_API_VERSION'),

# Allow NumPy's printf format specifiers in C++.

('__STDC_FORMAT_MACROS', 1),

# We need a patched Agg not available elsewhere, so always use the vendored

# version.

ext.include_dirs.insert(0, "extern/agg24-svn/include")

agg_sources = [

"agg_bezier_arc.cpp",

"agg_curves.cpp",

"agg_image_filters.cpp",

"agg_trans_affine.cpp",

"agg_vcgen_contour.cpp",

"agg_vcgen_dash.cpp",

"agg_vcgen_stroke.cpp",

"agg_vpgen_segmentator.cpp",

]

ext.sources.extend(

"""

class L(list):

def __bool__(self):

return True

build_ext = Distribution({"ext_modules": L()}).get_command_obj("build_ext")

build_ext.finalize_options()

build_ext.run()

name = "freetype"

@classmethod

def add_flags(cls, ext):

# checkdep_freetype2.c immediately aborts the compilation either with

# "foo.h: No such file or directory" if the header is not found, or an

# appropriate error message if the header indicates a too-old version.

ext.sources.insert(0, 'src/checkdep_freetype2.c')

if options.get('system_freetype'):

pkg_config_setup_extension(

# FreeType 2.3 has libtool version 9.11.3 as can be checked

# from the tarball. For FreeType>=2.4, there is a conversion

# table in docs/VERSIONS.txt in the FreeType source tree.

ext, 'freetype2',

atleast_version='9.11.3',

alt_exec=['freetype-config'],

default_libraries=['freetype'])

ext.define_macros.append(('FREETYPE_BUILD_TYPE', 'system'))

else:

src_path = Path('build', f'freetype-{LOCAL_FREETYPE_VERSION}')

# Statically link to the locally-built freetype.

# This is certainly broken on Windows.

ext.include_dirs.insert(0, str(src_path / 'include'))

if sys.platform == 'win32':

libfreetype = 'libfreetype.lib'

else:

libfreetype = 'libfreetype.a'

ext.extra_objects.insert(

0, str(src_path / 'objs' / '.libs' / libfreetype))

ext.define_macros.append(('FREETYPE_BUILD_TYPE', 'local'))

def do_custom_build(self, env):

# We're using a system freetype

if options.get('system_freetype'):

return

tarball = f'freetype-{LOCAL_FREETYPE_VERSION}.tar.gz'

src_path = get_and_extract_tarball(

urls=[

(f'https://downloads.sourceforge.net/project/freetype'

f'/freetype2/{LOCAL_FREETYPE_VERSION}/{tarball}'),

(f'https://download.savannah.gnu.org/releases/freetype'

f'/{tarball}')

],

sha=LOCAL_FREETYPE_HASH,

dirname=f'freetype-{LOCAL_FREETYPE_VERSION}',

)

if sys.platform == 'win32':

libfreetype = 'libfreetype.lib'

else:

libfreetype = 'libfreetype.a'

if (src_path / 'objs' / '.libs' / libfreetype).is_file():

return # Bail out because we have already built FreeType.

print(f"Building freetype in {src_path}")

if sys.platform != 'win32': # compilation on non-windows

env = {

**env,

**{

var: value

for var, value in sysconfig.get_config_vars().items()

if var in {"CC", "CFLAGS", "CXX", "CXXFLAGS", "LD",

"LDFLAGS"}

},

}

env["CFLAGS"] = env.get("CFLAGS", "") + " -fPIC"

configure = [

"./configure", "--with-zlib=no", "--with-bzip2=no",

"--with-png=no", "--with-harfbuzz=no", "--enable-static",

"--disable-shared"

]

host = sysconfig.get_config_var('BUILD_GNU_TYPE')

if host is not None: # May be unset on PyPy.

configure.append(f"--host={host}")

subprocess.check_call(configure, env=env, cwd=src_path)

if 'GNUMAKE' in env:

make = env['GNUMAKE']

elif 'MAKE' in env:

make = env['MAKE']

else:

try:

output = subprocess.check_output(['make', '-v'],

stderr=subprocess.DEVNULL)

except subprocess.CalledProcessError:

output = b''

if b'GNU' not in output and b'makepp' not in output:

make = 'gmake'

else:

make = 'make'

subprocess.check_call([make], env=env, cwd=src_path)

else: # compilation on windows

shutil.rmtree(src_path / "objs", ignore_errors=True)

msbuild_platform = (

'x64' if platform.architecture()[0] == '64bit' else 'Win32')

base_path = Path("build/freetype-2.6.1/builds/windows")

vc = 'vc2010'

sln_path = (

base_path / vc / "freetype.sln"

)

# https://developercommunity.visualstudio.com/comments/190992/view.html

(sln_path.parent / "Directory.Build.props").write_text("""

""")

# It is not a trivial task to determine PlatformToolset to plug it

# into msbuild command, and Directory.Build.props will not override

# the value in the project file.

# The DefaultPlatformToolset is from Microsoft.Cpp.Default.props

with open(base_path / vc / "freetype.vcxproj", 'r+b') as f:

toolset_repl = b'PlatformToolset>$(DefaultPlatformToolset)<'

vcxproj = f.read().replace(b'PlatformToolset>v100<',

toolset_repl)

assert toolset_repl in vcxproj, (

'Upgrading Freetype might break this')

f.seek(0)

f.truncate()

f.write(vcxproj)

cc = get_ccompiler()

cc.initialize() # Get msbuild in the %PATH% of cc.spawn.

cc.spawn(["msbuild", str(sln_path),

"/t:Clean;Build",

f"/p:Configuration=Release;Platform={msbuild_platform}"])

# Move to the corresponding Unix build path.

(src_path / "objs" / ".libs").mkdir()

# Be robust against change of FreeType version.

lib_path, = (src_path / "objs" / vc / msbuild_platform).glob(

"freetype*.lib")

name = "qhull"

_extensions_to_update = []

@classmethod

def add_flags(cls, ext):

if options.get("system_qhull"):

ext.libraries.append("qhull_r")

else:

cls._extensions_to_update.append(ext)

def do_custom_build(self, env):

if options.get('system_qhull'):

return

toplevel = get_and_extract_tarball(

urls=["http://www.qhull.org/download/qhull-2020-src-8.0.2.tgz"],

sha=LOCAL_QHULL_HASH,

dirname=f"qhull-{LOCAL_QHULL_VERSION}",

)

shutil.copyfile(toplevel / "COPYING.txt", "LICENSE/LICENSE_QHULL")

for ext in self._extensions_to_update:

qhull_path = Path(f'build/qhull-{LOCAL_QHULL_VERSION}/src')

ext.include_dirs.insert(0, str(qhull_path))

ext.sources.extend(map(str, sorted(qhull_path.glob('libqhull_r/*.c'))))

if sysconfig.get_config_var("LIBM") == "-lm":

name = 'macosx'

def check(self):

if sys.platform != 'darwin':

raise Skipped("Mac OS-X only")

return super().check()

def get_extensions(self):

ext = Extension(

'matplotlib.backends._macosx', [

'src/_macosx.m'

])

ext.extra_compile_args.extend(['-Werror=unguarded-availability'])

ext.extra_link_args.extend(['-framework', 'Cocoa'])

if platform.python_implementation().lower() == 'pypy':

ext.extra_compile_args.append('-DPYPY=1')