Python exceptions.InstallationError方法代码示例

# 需要导入模块: from pip import exceptions [as 别名]
# 或者: from pip.exceptions import InstallationError [as 别名]
def check_against_chunks(self, chunks):
        """Check good hashes against ones built from iterable of chunks of
        data.

        Raise HashMismatch if none match.

        """
        gots = {}
        for hash_name in iterkeys(self._allowed):
            try:
                gots[hash_name] = hashlib.new(hash_name)
            except (ValueError, TypeError):
                raise InstallationError('Unknown hash name: %s' % hash_name)

        for chunk in chunks:
            for hash in itervalues(gots):
                hash.update(chunk)

        for hash_name, got in iteritems(gots):
            if got.hexdigest() in self._allowed[hash_name]:
                return
        self._raise(gots) 

# 需要导入模块: from pip import exceptions [as 别名]
# 或者: from pip.exceptions import InstallationError [as 别名]
def find_package(self, package):
        for path in self.paths():
            full = os.path.join(path, package)
            if os.path.exists(full):
                return package, full
            if not os.path.isdir(path) and zipfile.is_zipfile(path):
                zip = zipfile.ZipFile(path, 'r')
                try:
                    zip.read(os.path.join(package, '__init__.py'))
                except KeyError:
                    pass
                else:
                    zip.close()
                    return package, full
                zip.close()
        ## FIXME: need special error for package.py case:
        raise InstallationError(
            'No package with the name %s found' % package) 

# 需要导入模块: from pip import exceptions [as 别名]
# 或者: from pip.exceptions import InstallationError [as 别名]
def unpack_file(filename, location, content_type, link):
    filename = os.path.realpath(filename)
    if (content_type == 'application/zip'
        or filename.endswith('.zip')
        or filename.endswith('.pybundle')
        or filename.endswith('.whl')
        or zipfile.is_zipfile(filename)):
        unzip_file(filename, location, flatten=not filename.endswith(('.pybundle', '.whl')))
    elif (content_type == 'application/x-gzip'
          or tarfile.is_tarfile(filename)
          or splitext(filename)[1].lower() in ('.tar', '.tar.gz', '.tar.bz2', '.tgz', '.tbz')):
        untar_file(filename, location)
    elif (content_type and content_type.startswith('text/html')
          and is_svn_page(file_contents(filename))):
        # We don't really care about this
        from pip.vcs.subversion import Subversion
        Subversion('svn+' + link.url).unpack(location)
    else:
        ## FIXME: handle?
        ## FIXME: magic signatures?
        logger.fatal('Cannot unpack file %s (downloaded from %s, content-type: %s); cannot detect archive format'
                     % (filename, location, content_type))
        raise InstallationError('Cannot determine archive format of %s' % location) 

# 需要导入模块: from pip import exceptions [as 别名]
# 或者: from pip.exceptions import InstallationError [as 别名]
def run(self, options, args):
        with self._build_session(options) as session:
            format_control = pip.index.FormatControl(set(), set())
            wheel_cache = WheelCache(options.cache_dir, format_control)
            requirement_set = RequirementSet(
                build_dir=None,
                src_dir=None,
                download_dir=None,
                isolated=options.isolated_mode,
                session=session,
                wheel_cache=wheel_cache,
            )
            for name in args:
                requirement_set.add_requirement(
                    InstallRequirement.from_line(
                        name, isolated=options.isolated_mode,
                        wheel_cache=wheel_cache
                    )
                )
            for filename in options.requirements:
                for req in parse_requirements(
                        filename,
                        options=options,
                        session=session,
                        wheel_cache=wheel_cache):
                    requirement_set.add_requirement(req)
            if not requirement_set.has_requirements:
                raise InstallationError(
                    'You must give at least one requirement to %(name)s (see '
                    '"pip help %(name)s")' % dict(name=self.name)
                )
            requirement_set.uninstall(auto_confirm=options.yes) 

# 需要导入模块: from pip import exceptions [as 别名]
# 或者: from pip.exceptions import InstallationError [as 别名]
def get_file_content(url, comes_from=None, session=None):
    """Gets the content of a file; it may be a filename, file: URL, or
    http: URL.  Returns (location, content).  Content is unicode."""
    if session is None:
        raise TypeError(
            "get_file_content() missing 1 required keyword argument: 'session'"
        )

    match = _scheme_re.search(url)
    if match:
        scheme = match.group(1).lower()
        if (scheme == 'file' and comes_from and
                comes_from.startswith('http')):
            raise InstallationError(
                'Requirements file %s references URL %s, which is local'
                % (comes_from, url))
        if scheme == 'file':
            path = url.split(':', 1)[1]
            path = path.replace('\\', '/')
            match = _url_slash_drive_re.match(path)
            if match:
                path = match.group(1) + ':' + path.split('|', 1)[1]
            path = urllib_parse.unquote(path)
            if path.startswith('/'):
                path = '/' + path.lstrip('/')
            url = path
        else:
            # FIXME: catch some errors
            resp = session.get(url)
            resp.raise_for_status()
            return resp.url, resp.text
    try:
        with open(url, 'rb') as f:
            content = auto_decode(f.read())
    except IOError as exc:
        raise InstallationError(
            'Could not open requirements file: %s' % str(exc)
        )
    return url, content 

# 需要导入模块: from pip import exceptions [as 别名]
# 或者: from pip.exceptions import InstallationError [as 别名]
def unpack_file(filename, location, content_type, link):
    filename = os.path.realpath(filename)
    if (content_type == 'application/zip' or
            filename.lower().endswith(ZIP_EXTENSIONS) or
            zipfile.is_zipfile(filename)):
        unzip_file(
            filename,
            location,
            flatten=not filename.endswith('.whl')
        )
    elif (content_type == 'application/x-gzip' or
            tarfile.is_tarfile(filename) or
            filename.lower().endswith(
                TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
        untar_file(filename, location)
    elif (content_type and content_type.startswith('text/html') and
            is_svn_page(file_contents(filename))):
        # We don't really care about this
        from pip.vcs.subversion import Subversion
        Subversion('svn+' + link.url).unpack(location)
    else:
        # FIXME: handle?
        # FIXME: magic signatures?
        logger.critical(
            'Cannot unpack file %s (downloaded from %s, content-type: %s); '
            'cannot detect archive format',
            filename, location, content_type,
        )
        raise InstallationError(
            'Cannot determine archive format of %s' % location
        )