我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用pip.exceptions.InstallationError()。
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)
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)
def run(self, options, args): session = self._build_session(options) requirement_set = RequirementSet( build_dir=None, src_dir=None, download_dir=None, session=session, ) for name in args: requirement_set.add_requirement( InstallRequirement.from_line(name)) for filename in options.requirements: for req in parse_requirements(filename, options=options, session=session): 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)
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)
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
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 )
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)
