capybara/virtualenv/lib/python2.7/site-packages/wheel/metadata.py
def pkginfo_to_dict(path, distribution=None):
    """
    Convert PKG-INFO to a prototype Metadata 2.0 (PEP 426) dict.

    The description is included under the key ['description'] rather than
    being written to a separate file.

    path: path to PKG-INFO file
    distribution: optional distutils Distribution()
    """

    metadata = defaultdict(lambda: defaultdict(lambda: defaultdict(dict)))
    metadata["generator"] = "bdist_wheel (" + wheel.__version__ + ")"
    try:
        unicode
        pkg_info = read_pkg_info(path)
    except NameError:
        pkg_info = email.parser.Parser().parsestr(open(path, 'rb').read().decode('utf-8'))
    description = None

    if pkg_info['Summary']:
        metadata['summary'] = pkginfo_unicode(pkg_info, 'Summary')
        del pkg_info['Summary']

    if pkg_info['Description']:
        description = dedent_description(pkg_info)
        del pkg_info['Description']
    else:
        payload = pkg_info.get_payload()
        if isinstance(payload, bytes):
            # Avoid a Python 2 Unicode error.
            # We still suffer ? glyphs on Python 3.
            payload = payload.decode('utf-8')
        if payload:
            description = payload

    if description:
        pkg_info['description'] = description

    for key in unique(k.lower() for k in pkg_info.keys()):
        low_key = key.replace('-', '_')

        if low_key in SKIP_FIELDS:
            continue

        if low_key in UNKNOWN_FIELDS and pkg_info.get(key) == 'UNKNOWN':
            continue

        if low_key in PLURAL_FIELDS:
            metadata[PLURAL_FIELDS[low_key]] = pkg_info.get_all(key)

        elif low_key == "requires_dist":
            handle_requires(metadata, pkg_info, key)

        elif low_key == 'provides_extra':
            if not 'extras' in metadata:
                metadata['extras'] = []
            metadata['extras'].extend(pkg_info.get_all(key))

        elif low_key == 'home_page':
            metadata['extensions']['python.details']['project_urls'] = {'Home':pkg_info[key]}

        elif low_key == 'keywords':
            metadata['keywords'] = KEYWORDS_RE.split(pkg_info[key])

        else:
            metadata[low_key] = pkg_info[key]

    metadata['metadata_version'] = METADATA_VERSION

    if 'extras' in metadata:
        metadata['extras'] = sorted(set(metadata['extras']))

    # include more information if distribution is available
    if distribution:
        for requires, attr in (('test_requires', 'tests_require'),):
            try:
                requirements = getattr(distribution, attr)
                if isinstance(requirements, list):
                    new_requirements = list(convert_requirements(requirements))
                    metadata[requires] = [{'requires':new_requirements}]
            except AttributeError:
                pass

    # handle contacts
    contacts = []
    for contact_type, role in CONTACT_FIELDS:
        contact = {}
        for key in contact_type:
            if contact_type[key] in metadata:
                contact[key] = metadata.pop(contact_type[key])
        if contact:
            contact['role'] = role
            contacts.append(contact)
    if contacts:
        metadata['extensions']['python.details']['contacts'] = contacts

    # convert entry points to exports
    try:
        with open(os.path.join(os.path.dirname(path), "entry_points.txt"), "r") as ep_file:
            ep_map = pkg_resources.EntryPoint.parse_map(ep_file.read())
        exports = {}
        for group, items in ep_map.items():
            exports[group] = {}
            for item in items.values():
                name, export = str(item).split(' = ', 1)
                exports[group][name] = export
        if exports:
            metadata['extensions']['python.exports'] = exports
    except IOError:
        pass

    # copy console_scripts entry points to commands
    if 'python.exports' in metadata['extensions']:
        for (ep_script, wrap_script) in (('console_scripts', 'wrap_console'),
                                         ('gui_scripts', 'wrap_gui')):
            if ep_script in metadata['extensions']['python.exports']:
                metadata['extensions']['python.commands'][wrap_script] = \
                    metadata['extensions']['python.exports'][ep_script]

    return metadata
def pkginfo_to_dict(path, distribution=None):
    """
    Convert PKG-INFO to a prototype Metadata 2.0 (PEP 426) dict.

    The description is included under the key ['description'] rather than
    being written to a separate file.

    path: path to PKG-INFO file
    distribution: optional distutils Distribution()
    """

    metadata = defaultdict(lambda: defaultdict(lambda: defaultdict(dict)))
    metadata["generator"] = "bdist_wheel (" + wheel.__version__ + ")"
    try:
        unicode
        pkg_info = read_pkg_info(path)
    except NameError:
        pkg_info = email.parser.Parser().parsestr(open(path, 'rb').read().decode('utf-8'))
    description = None

    if pkg_info['Summary']:
        metadata['summary'] = pkginfo_unicode(pkg_info, 'Summary')
        del pkg_info['Summary']

    if pkg_info['Description']:
        description = dedent_description(pkg_info)
        del pkg_info['Description']
    else:
        payload = pkg_info.get_payload()
        if isinstance(payload, bytes):
            # Avoid a Python 2 Unicode error.
            # We still suffer ? glyphs on Python 3.
            payload = payload.decode('utf-8')
        if payload:
            description = payload

    if description:
        pkg_info['description'] = description

    for key in unique(k.lower() for k in pkg_info.keys()):
        low_key = key.replace('-', '_')

        if low_key in SKIP_FIELDS:
            continue

        if low_key in UNKNOWN_FIELDS and pkg_info.get(key) == 'UNKNOWN':
            continue

        if low_key in PLURAL_FIELDS:
            metadata[PLURAL_FIELDS[low_key]] = pkg_info.get_all(key)

        elif low_key == "requires_dist":
            handle_requires(metadata, pkg_info, key)

        elif low_key == 'provides_extra':
            if not 'extras' in metadata:
                metadata['extras'] = []
            metadata['extras'].extend(pkg_info.get_all(key))

        elif low_key == 'home_page':
            metadata['extensions']['python.details']['project_urls'] = {'Home':pkg_info[key]}

        elif low_key == 'keywords':
            metadata['keywords'] = KEYWORDS_RE.split(pkg_info[key])

        else:
            metadata[low_key] = pkg_info[key]

    metadata['metadata_version'] = METADATA_VERSION

    if 'extras' in metadata:
        metadata['extras'] = sorted(set(metadata['extras']))

    # include more information if distribution is available
    if distribution:
        for requires, attr in (('test_requires', 'tests_require'),):
            try:
                requirements = getattr(distribution, attr)
                if isinstance(requirements, list):
                    new_requirements = list(convert_requirements(requirements))
                    metadata[requires] = [{'requires':new_requirements}]
            except AttributeError:
                pass

    # handle contacts
    contacts = []
    for contact_type, role in CONTACT_FIELDS:
        contact = {}
        for key in contact_type:
            if contact_type[key] in metadata:
                contact[key] = metadata.pop(contact_type[key])
        if contact:
            contact['role'] = role
            contacts.append(contact)
    if contacts:
        metadata['extensions']['python.details']['contacts'] = contacts

    # convert entry points to exports
    try:
        with open(os.path.join(os.path.dirname(path), "entry_points.txt"), "r") as ep_file:
            ep_map = pkg_resources.EntryPoint.parse_map(ep_file.read())
        exports = {}
        for group, items in ep_map.items():
            exports[group] = {}
            for item in items.values():
                name, export = str(item).split(' = ', 1)
                exports[group][name] = export
        if exports:
            metadata['extensions']['python.exports'] = exports
    except IOError:
        pass

    # copy console_scripts entry points to commands
    if 'python.exports' in metadata['extensions']:
        for (ep_script, wrap_script) in (('console_scripts', 'wrap_console'),
                                         ('gui_scripts', 'wrap_gui')):
            if ep_script in metadata['extensions']['python.exports']:
                metadata['extensions']['python.commands'][wrap_script] = \
                    metadata['extensions']['python.exports'][ep_script]

    return metadata
Convert PKG-INFO to a prototype Metadata 2.0 (PEP 426) dict.

    The description is included under the key ['description'] rather than
    being written to a separate file.

    path: path to PKG-INFO file
    distribution: optional distutils Distribution()