BoghdadyJR/codesearch_python · Datasets at Hugging Face

text stringlengths 75 104k
def _download_http_url(link, session, temp_dir): """Download link url into temp_dir using provided session""" target_url = link.url.split('#', 1)[0] try: resp = session.get( target_url, # We use Accept-Encoding: identity here because requests # defaults to accepti...
def _check_download_dir(link, download_dir): """ Check download_dir for previously downloaded file with correct hash If a correct file is found return its path else None """ download_path = os.path.join(download_dir, link.filename) if os.path.exists(download_path): # If already downloade...
def currencyFormat(_context, code, symbol, format, currency_digits=True, decimal_quantization=True, name=''): """Handle currencyFormat subdirectives.""" _context.action( discriminator=('currency', name, code), callable=_register_curre...
def exchange(_context, component, backend, base, name=''): """Handle exchange subdirectives.""" _context.action( discriminator=('currency', 'exchange', component), callable=_register_exchange, args=(name, component, backend, base) )
def print_results(distributions, list_all_files): """ Print the informations from installed distributions found. """ results_printed = False for dist in distributions: results_printed = True logger.info("---") logger.info("Metadata-Version: %s" % dist.get('metadata-version'))...
def _decode(self, data, decode_content, flush_decoder): """ Decode the data passed in and potentially flush the decoder. """ try: if decode_content and self._decoder: data = self._decoder.decompress(data) except (IOError, zlib.error) as e: ...
def read(self, amt=None, decode_content=None, cache_content=False): """ Similar to :meth:`httplib.HTTPResponse.read`, but with two additional parameters: ``decode_content`` and ``cache_content``. :param amt: How much of the content to read. If specified, caching is skipped ...
def stream(self, amt=2**16, decode_content=None): """ A generator wrapper for the read() method. A call will block until ``amt`` bytes have been read from the connection or until the connection is closed. :param amt: How much of the content to read. The generator wil...
def read_chunked(self, amt=None, decode_content=None): """ Similar to :meth:`HTTPResponse.read`, but with an additional parameter: ``decode_content``. :param decode_content: If True, will attempt to decode the body based on the 'content-encoding' header. ...
def _default_template_ctx_processor(): """Default template context processor. Injects `request`, `session` and `g`. """ reqctx = _request_ctx_stack.top appctx = _app_ctx_stack.top rv = {} if appctx is not None: rv['g'] = appctx.g if reqctx is not None: rv['request'] = re...
def _render(template, context, app): """Renders the template and fires the signal""" rv = template.render(context) template_rendered.send(app, template=template, context=context) return rv
def render_template(template_name_or_list, **context): """Renders a template from the template folder with the given context. :param template_name_or_list: the name of the template to be rendered, or an iterable with template names the fir...
def render_template_string(source, **context): """Renders a template from the given template source string with the given context. :param source: the sourcecode of the template to be rendered :param context: the variables that should be available in the context of...
def parse_version(version): """Use parse_version from pkg_resources or distutils as available.""" global parse_version try: from pkg_resources import parse_version except ImportError: from distutils.version import LooseVersion as parse_version return parse_version(version)
def install(self, force=False, overrides={}): """ Install the wheel into site-packages. """ # Utility to get the target directory for a particular key def get_path(key): return overrides.get(key) or self.install_paths[key] # The base target location is eithe...
def verify(self, zipfile=None): """Configure the VerifyingZipFile `zipfile` by verifying its signature and setting expected hashes for every hash in RECORD. Caller must complete the verification process by completely reading every file in the archive (e.g. with extractall).""" ...
def is_declared(self, name): """Check if a name is declared in this or an outer scope.""" if name in self.declared_locally or name in self.declared_parameter: return True return name in self.declared
def inspect(self, nodes): """Walk the node and check for identifiers. If the scope is hard (eg: enforce on a python level) overrides from outer scopes are tracked differently. """ visitor = FrameIdentifierVisitor(self.identifiers) for node in nodes: visitor.v...
def visit_Name(self, node): """All assignments to names go through this function.""" if node.ctx == 'store': self.identifiers.declared_locally.add(node.name) elif node.ctx == 'param': self.identifiers.declared_parameter.add(node.name) elif node.ctx == 'load' and n...
def visit_Include(self, node, frame): """Handles includes.""" if node.with_context: self.unoptimize_scope(frame) if node.ignore_missing: self.writeline('try:') self.indent() func_name = 'get_or_select_template' if isinstance(node.template, nod...
def visit_FromImport(self, node, frame): """Visit named imports.""" self.newline(node) self.write('included_template = environment.get_template(') self.visit(node.template, frame) self.write(', %r).' % self.name) if node.with_context: self.write('make_module(c...
def make_wheelfile_inner(base_name, base_dir='.'): """Create a whl file from all the files under 'base_dir'. Places .dist-info at the end of the archive.""" zip_filename = base_name + ".whl" log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir) # XXX support bz2, xz when availa...
def atomize(f, lock=None): """ Decorate a function with a reentrant lock to prevent multiple threads from calling said thread simultaneously. """ lock = lock or threading.RLock() @functools.wraps(f) def exec_atomic(args, kwargs): lock.acquire() try: return f(args, **kwargs) finally: ...
def service_factory(app, host, port, report_message='service factory port {port}', provider_cls=HTTPServiceProvider): """Create service, start server. :param app: application to instantiate a service :param host: interface to bound provider :param port: port to b...
def unicode_urlencode(obj, charset='utf-8'): """URL escapes a single bytestring or unicode string with the given charset if applicable to URL safe quoting under all rules that need to be considered under all supported Python versions. If non strings are provided they are converted to their unicode ...
def matches_requirement(req, wheels): """List of wheels matching a requirement. :param req: The requirement to satisfy :param wheels: List of wheels to search. """ try: from pkg_resources import Distribution, Requirement except ImportError: raise RuntimeError("Cannot use require...
def populate_requirement_set(requirement_set, args, options, finder, session, name, wheel_cache): """ Marshal cmd line args into a requirement set. """ for req in args: requirement_set.add_requirement( InstallRequirement.from_l...
def call(__self, __obj, args, *kwargs): """Call the callable with the arguments and keyword arguments provided but inject the active context or environment as first argument if the callable is a :func:`contextfunction` or :func:`environmentfunction`. """ if __debug__: ...
def export(self, location): """ Export the Bazaar repository at the url to the destination location """ temp_dir = tempfile.mkdtemp('-export', 'pip-') self.unpack(temp_dir) if os.path.exists(location): # Remove the location to make sure Bazaar can export it co...
def pip_version_check(session): """Check for an update for pip. Limit the frequency of checks to once per week. State is stored either in the active virtualenv or in the user's USER_CACHE_DIR keyed off the prefix of the pip script path. """ import pip # imported here to prevent circular import...
def lookup(self, ResponseGroup="Large", **kwargs): """Lookup an Amazon Product. :return: An instance of :class:`~.AmazonProduct` if one item was returned, or a list of :class:`~.AmazonProduct` instances if multiple items where returned. """ response...
def iterate_pages(self): """Iterate Pages. A generator which iterates over all pages. Keep in mind that Amazon limits the number of pages it makes available. :return: Yields lxml root elements. """ try: while True: yield self._que...
def _query(self, ResponseGroup="Large", kwargs): """Query. Query Amazon search and check for errors. :return: An lxml root element. """ response = self.api.ItemSearch(ResponseGroup=ResponseGroup, kwargs) root = objectify.fromstring(response) if r...
def ancestor(self): """This browse node's immediate ancestor in the browse node tree. :return: The ancestor as an :class:`~.AmazonBrowseNode`, or None. """ ancestors = getattr(self.element, 'Ancestors', None) if hasattr(ancestors, 'BrowseNode'): return Am...
def children(self): """This browse node's children in the browse node tree. :return: A list of this browse node's children in the browse node tree. """ children = [] child_nodes = getattr(self.element, 'Children') for child in getattr(child_nodes, 'BrowseNode', []): ...
def _safe_get_element(self, path, root=None): """Safe Get Element. Get a child element of root (multiple levels deep) failing silently if any descendant does not exist. :param root: Lxml element. :param path: String path (i.e. 'Items.Item.Offers.Offer')....
def _safe_get_element_text(self, path, root=None): """Safe get element text. Get element as string or None, :param root: Lxml element. :param path: String path (i.e. 'Items.Item.Offers.Offer'). :return: String or None. """ elem...
def _safe_get_element_date(self, path, root=None): """Safe get elemnent date. Get element as datetime.date or None, :param root: Lxml element. :param path: String path (i.e. 'Items.Item.Offers.Offer'). :return: datetime.date or None. "...
def price_and_currency(self): """Get Offer Price and Currency. Return price according to the following process: * If product has a sale return Sales Price, otherwise, * Return Price, otherwise, * Return lowest offer price, otherwise, * Return None. :return: ...
def list_price(self): """List Price. :return: A tuple containing: 1. Float representation of price. 2. ISO Currency code (string). """ price = self._safe_get_element_text('ItemAttributes.ListPrice.Amount') currency = self._safe_get_el...
def send(self, request, **kw): """ Send a request. Use the request information to see if it exists in the cache and cache the response if we need to and can. """ if request.method == 'GET': cached_response = self.controller.cached_request(request) if cache...
def build_response(self, request, response, from_cache=False): """ Build a response by making a request or using the cache. This will end up calling send and returning a potentially cached response """ if not from_cache and request.method == 'GET': # apply a...
def make_attrgetter(environment, attribute): """Returns a callable that looks up the given attribute from a passed object with the rules of the environment. Dots are allowed to access attributes of attributes. Integer parts in paths are looked up as integers. """ if not isinstance(attribute, s...
def do_title(s): """Return a titlecased version of the value. I.e. words will start with uppercase letters, all remaining characters are lowercase. """ rv = [] for item in re.compile(r'([-\s]+)(?u)').split(s): if not item: continue rv.append(item[0].upper() + item[1:].low...
def do_dictsort(value, case_sensitive=False, by='key'): """Sort a dict and yield (key, value) pairs. Because python dicts are unsorted you may want to use this function to order them by either key or value: .. sourcecode:: jinja {% for item in mydict\|dictsort %} sort the dict by ke...
def do_sort(environment, value, reverse=False, case_sensitive=False, attribute=None): """Sort an iterable. Per default it sorts ascending, if you pass it true as first argument it will reverse the sorting. If the iterable is made of strings the third parameter can be used to control the ca...
def do_groupby(environment, value, attribute): """Group a sequence of objects by a common attribute. If you for example have a list of dicts or objects that represent persons with `gender`, `first_name` and `last_name` attributes and you want to group all users by genders you can do something like the ...
def do_map(args, *kwargs): """Applies a filter on a sequence of objects or looks up an attribute. This is useful when dealing with lists of objects but you are really only interested in a certain value of it. The basic usage is mapping on an attribute. Imagine you have a list of users but you ar...
def create_logger(app): """Creates a logger for the given application. This logger works similar to a regular Python logger but changes the effective logging level based on the application's debug flag. Furthermore this function also removes all attached handlers in case there was a logger with th...
def constant_time_compare(val1, val2): """Returns True if the two strings are equal, False otherwise. The time taken is independent of the number of characters that match. Do not use this function for anything else than comparision with known length targets. This is should be implemented in C in ...
def base64_encode(string): """base64 encodes a single bytestring (and is tolerant to getting called with a unicode string). The resulting bytestring is safe for putting into URLs. """ string = want_bytes(string) return base64.urlsafe_b64encode(string).strip(b'=')
def base64_decode(string): """base64 decodes a single bytestring (and is tolerant to getting called with a unicode string). The result is also a bytestring. """ string = want_bytes(string, encoding='ascii', errors='ignore') return base64.urlsafe_b64decode(string + b'=' * (-len(string) % 4))
def verify_signature(self, key, value, sig): """Verifies the given signature matches the expected signature""" return constant_time_compare(sig, self.get_signature(key, value))
def derive_key(self): """This method is called to derive the key. If you're unhappy with the default key derivation choices you can override them here. Keep in mind that the key derivation in itsdangerous is not intended to be used as a security method to make a complex key out of a sho...
def get_signature(self, value): """Returns the signature for the given value""" value = want_bytes(value) key = self.derive_key() sig = self.algorithm.get_signature(key, value) return base64_encode(sig)
def sign(self, value): """Signs the given string.""" return value + want_bytes(self.sep) + self.get_signature(value)
def verify_signature(self, value, sig): """Verifies the signature for the given value.""" key = self.derive_key() try: sig = base64_decode(sig) except Exception: return False return self.algorithm.verify_signature(key, value, sig)
def unsign(self, signed_value): """Unsigns the given string.""" signed_value = want_bytes(signed_value) sep = want_bytes(self.sep) if sep not in signed_value: raise BadSignature('No %r found in value' % self.sep) value, sig = signed_value.rsplit(sep, 1) if sel...
def sign(self, value): """Signs the given string and also attaches a time information.""" value = want_bytes(value) timestamp = base64_encode(int_to_bytes(self.get_timestamp())) sep = want_bytes(self.sep) value = value + sep + timestamp return value + sep + self.get_signa...
def unsign(self, value, max_age=None, return_timestamp=False): """Works like the regular :meth:`~Signer.unsign` but can also validate the time. See the base docstring of the class for the general behavior. If `return_timestamp` is set to `True` the timestamp of the signature will be re...
def validate(self, signed_value, max_age=None): """Just validates the given signed value. Returns `True` if the signature exists and is valid, `False` otherwise.""" try: self.unsign(signed_value, max_age=max_age) return True except BadSignature: retur...
def load_payload(self, payload, serializer=None): """Loads the encoded object. This function raises :class:`BadPayload` if the payload is not valid. The `serializer` parameter can be used to override the serializer stored on the class. The encoded payload is always byte based. ...
def make_signer(self, salt=None): """A method that creates a new instance of the signer to be used. The default implementation uses the :class:`Signer` baseclass. """ if salt is None: salt = self.salt return self.signer(self.secret_key, salt=salt, **self.signer_kwargs...
def dumps(self, obj, salt=None): """Returns a signed string serialized with the internal serializer. The return value can be either a byte or unicode string depending on the format of the internal serializer. """ payload = want_bytes(self.dump_payload(obj)) rv = self.make...
def dump(self, obj, f, salt=None): """Like :meth:`dumps` but dumps into a file. The file handle has to be compatible with what the internal serializer expects. """ f.write(self.dumps(obj, salt))
def loads(self, s, salt=None): """Reverse of :meth:`dumps`, raises :exc:`BadSignature` if the signature validation fails. """ s = want_bytes(s) return self.load_payload(self.make_signer(salt).unsign(s))
def _loads_unsafe_impl(self, s, salt, load_kwargs=None, load_payload_kwargs=None): """Lowlevel helper function to implement :meth:`loads_unsafe` in serializer subclasses. """ try: return True, self.loads(s, salt=salt, **(load_kwargs or {})) ...
def load_unsafe(self, f, args, kwargs): """Like :meth:`loads_unsafe` but loads from a file. .. versionadded:: 0.15 """ return self.loads_unsafe(f.read(), args, **kwargs)
def loads(self, s, max_age=None, return_timestamp=False, salt=None): """Reverse of :meth:`dumps`, raises :exc:`BadSignature` if the signature validation fails. If a `max_age` is provided it will ensure the signature is not older than that time in seconds. In case the signature is outda...
def dumps(self, obj, salt=None, header_fields=None): """Like :meth:`~Serializer.dumps` but creates a JSON Web Signature. It also allows for specifying additional fields to be included in the JWS Header. """ header = self.make_header(header_fields) signer = self.make_sign...
def loads(self, s, salt=None, return_header=False): """Reverse of :meth:`dumps`. If requested via `return_header` it will return a tuple of payload and header. """ payload, header = self.load_payload( self.make_signer(salt, self.algorithm).unsign(want_bytes(s)), r...
def server_error(request_id, error): """JSON-RPC server error. :param request_id: JSON-RPC request id :type request_id: int or str or None :param error: server error :type error: Exception """ response = { 'jsonrpc': '2.0', 'id': request_id, 'error': { ...
def findall(dir = os.curdir): """Find all files under 'dir' and return the list of full filenames (relative to 'dir'). """ all_files = [] for base, dirs, files in os.walk(dir, followlinks=True): if base==os.curdir or base.startswith(os.curdir+os.sep): base = base[2:] if b...
def find(cls, where='.', exclude=(), include=('*',)): """Return a list all Python packages found within directory 'where' 'where' should be supplied as a "cross-platform" (i.e. URL-style) path; it will be converted to the appropriate local path syntax. 'exclude' is a sequence of package...
def require_parents(packages): """ Exclude any apparent package that apparently doesn't include its parent. For example, exclude 'foo.bar' if 'foo' is not present. """ found = [] for pkg in packages: base, sep, child = pkg.rpartition('.') ...
def _all_dirs(base_path): """ Return all dirs in base_path, relative to base_path """ for root, dirs, files in os.walk(base_path, followlinks=True): for dir in dirs: yield os.path.relpath(os.path.join(root, dir), base_path)
def prepare_response(self, request, cached): """Verify our vary headers match and construct a real urllib3 HTTPResponse object. """ # Special case the '' Vary value as it means we cannot actually # determine if the cached response is suitable for this request. if "" in ...
def keygen(get_keyring=get_keyring): """Generate a public/private key pair.""" WheelKeys, keyring = get_keyring() ed25519ll = signatures.get_ed25519ll() wk = WheelKeys().load() keypair = ed25519ll.crypto_sign_keypair() vk = native(urlsafe_b64encode(keypair.vk)) sk = native(urlsafe_b64enco...
def unsign(wheelfile): """ Remove RECORD.jws from a wheel by truncating the zip file. RECORD.jws must be at the end of the archive. The zip file must be an ordinary archive, with the compressed files and the directory in the same order, and without any non-zip content after the truncation poi...
def verify(wheelfile): """Verify a wheel. The signature will be verified for internal consistency ONLY and printed. Wheel's own unpack/install commands verify the manifest against the signature and file contents. """ wf = WheelFile(wheelfile) sig_name = wf.distinfo_name + '/RECORD.jws'...
def unpack(wheelfile, dest='.'): """Unpack a wheel. Wheel content will be unpacked to {dest}/{name}-{ver}, where {name} is the package name and {ver} its version. :param wheelfile: The path to the wheel. :param dest: Destination directory (default to current directory). """ wf = WheelFile(...
def install(requirements, requirements_file=None, wheel_dirs=None, force=False, list_files=False, dry_run=False): """Install wheels. :param requirements: A list of requirements or wheel files to install. :param requirements_file: A file containing requirements to install. :p...
def install_scripts(distributions): """ Regenerate the entry_points console_scripts for the named distribution. """ try: from setuptools.command import easy_install import pkg_resources except ImportError: raise RuntimeError("'wheel install_scripts' needs setuptools.") f...
def arrange_all(self): """ Sets for the _draw_ and _ldraw_ attributes for each of the graph sub-elements by processing the xdot format of the graph. """ import godot.dot_data_parser parser = godot.dot_data_parser.GodotDataParser() xdot_data = self.create( format = "...
def redraw_canvas(self): """ Parses the Xdot attributes of all graph components and adds the components to a new canvas. """ from xdot_parser import XdotAttrParser xdot_parser = XdotAttrParser() canvas = self._component_default() for node in self.nodes: ...
def get_node(self, ID): """ Returns a node given an ID or None if no such node exists. """ node = super(Graph, self).get_node(ID) if node is not None: return node for graph in self.all_graphs: for each_node in graph.nodes: if each_node.ID ...
def _maxiter_default(self): """ Trait initialiser. """ mode = self.mode if mode == "KK": return 100 * len(self.nodes) elif mode == "major": return 200 else: return 600
def _get_all_graphs(self): """ Property getter. """ top_graph = self def get_subgraphs(graph): assert isinstance(graph, BaseGraph) subgraphs = graph.subgraphs[:] for subgraph in graph.subgraphs: subsubgraphs = get_subgraphs(subgraph) ...
def _directed_changed(self, new): """ Sets the connection string for all edges. """ if new: conn = "->" else: conn = "--" for edge in [e for g in self.all_graphs for e in g.edges]: edge.conn = conn
def _on_nodes(self): """ Maintains each branch's list of available nodes in order that they may move themselves (InstanceEditor values). """ all_graphs = self.all_graphs all_nodes = [n for g in all_graphs for n in g.nodes] for graph in all_graphs: for edg...
def _on_edges(self, object, name, old, new): """ Handles the list of edges for any graph changing. """ if name == "edges_items": edges = new.added elif name == "edges": edges = new else: edges = [] all_nodes = [n for g in self.all_grap...
def _support(self, caller): """Helper callback.""" markdown_content = caller() html_content = markdown.markdown( markdown_content, extensions=[ "markdown.extensions.fenced_code", CodeHiliteExtension(css_class="highlight"), "...
def _viewport_default(self): """ Trait initialiser """ viewport = Viewport(component=self.canvas, enable_zoom=True) viewport.tools.append(ViewportPanTool(viewport)) return viewport
def _component_changed(self, old, new): """ Handles the component being changed. """ canvas = self.canvas if old is not None: canvas.remove(old) if new is not None: canvas.add(new)
def _code_support(self, language, caller): """Helper callback.""" code = caller() # remove the leading whitespace so the whole block can be indented more easily with flow of page lines = code.splitlines() first_nonempty_line_index = 0 while not lines[first_nonempty_line...
def normal_left_dclick(self, event): """ Handles the left mouse button being double-clicked when the tool is in the 'normal' state. If the event occurred on this tool's component (or any contained component of that component), the method opens a Traits UI view on the object refe...
def _diagram_canvas_default(self): """ Trait initialiser """ canvas = Canvas() for tool in self.tools: canvas.tools.append(tool(canvas)) return canvas
def _viewport_default(self): """ Trait initialiser """ vp = Viewport(component=self.diagram_canvas, enable_zoom=True) vp.view_position = [0,0] vp.tools.append(ViewportPanTool(vp)) return vp
def _diagram_canvas_changed(self, new): """ Handles the diagram canvas being set """ logger.debug("Diagram canvas changed!") canvas = self.diagram_canvas for tool in self.tools: if canvas is not None: print "Adding tool: %s" % tool canvas.too...
def clear_canvas(self): """ Removes all components from the canvas """ logger.debug("Clearing the diagram canvas!") old_canvas = self.diagram_canvas # logger.debug("Canvas components: %s" % canvas.components) # for component in canvas.components: # canvas.remove(compon...

def _download_http_url(link, session, temp_dir): """Download link url into temp_dir using provided session""" target_url = link.url.split('#', 1)[0] try: resp = session.get( target_url, # We use Accept-Encoding: identity here because requests # defaults to accepti...

def _check_download_dir(link, download_dir): """ Check download_dir for previously downloaded file with correct hash If a correct file is found return its path else None """ download_path = os.path.join(download_dir, link.filename) if os.path.exists(download_path): # If already downloade...

def currencyFormat(_context, code, symbol, format, currency_digits=True, decimal_quantization=True, name=''): """Handle currencyFormat subdirectives.""" _context.action( discriminator=('currency', name, code), callable=_register_curre...

def exchange(_context, component, backend, base, name=''): """Handle exchange subdirectives.""" _context.action( discriminator=('currency', 'exchange', component), callable=_register_exchange, args=(name, component, backend, base) )

def print_results(distributions, list_all_files): """ Print the informations from installed distributions found. """ results_printed = False for dist in distributions: results_printed = True logger.info("---") logger.info("Metadata-Version: %s" % dist.get('metadata-version'))...

def _decode(self, data, decode_content, flush_decoder): """ Decode the data passed in and potentially flush the decoder. """ try: if decode_content and self._decoder: data = self._decoder.decompress(data) except (IOError, zlib.error) as e: ...

def read(self, amt=None, decode_content=None, cache_content=False): """ Similar to :meth:`httplib.HTTPResponse.read`, but with two additional parameters: ``decode_content`` and ``cache_content``. :param amt: How much of the content to read. If specified, caching is skipped ...

def stream(self, amt=2**16, decode_content=None): """ A generator wrapper for the read() method. A call will block until ``amt`` bytes have been read from the connection or until the connection is closed. :param amt: How much of the content to read. The generator wil...

def read_chunked(self, amt=None, decode_content=None): """ Similar to :meth:`HTTPResponse.read`, but with an additional parameter: ``decode_content``. :param decode_content: If True, will attempt to decode the body based on the 'content-encoding' header. ...

def _default_template_ctx_processor(): """Default template context processor. Injects `request`, `session` and `g`. """ reqctx = _request_ctx_stack.top appctx = _app_ctx_stack.top rv = {} if appctx is not None: rv['g'] = appctx.g if reqctx is not None: rv['request'] = re...

def _render(template, context, app): """Renders the template and fires the signal""" rv = template.render(context) template_rendered.send(app, template=template, context=context) return rv

def render_template(template_name_or_list, **context): """Renders a template from the template folder with the given context. :param template_name_or_list: the name of the template to be rendered, or an iterable with template names the fir...

def render_template_string(source, **context): """Renders a template from the given template source string with the given context. :param source: the sourcecode of the template to be rendered :param context: the variables that should be available in the context of...

def parse_version(version): """Use parse_version from pkg_resources or distutils as available.""" global parse_version try: from pkg_resources import parse_version except ImportError: from distutils.version import LooseVersion as parse_version return parse_version(version)

def install(self, force=False, overrides={}): """ Install the wheel into site-packages. """ # Utility to get the target directory for a particular key def get_path(key): return overrides.get(key) or self.install_paths[key] # The base target location is eithe...

def verify(self, zipfile=None): """Configure the VerifyingZipFile `zipfile` by verifying its signature and setting expected hashes for every hash in RECORD. Caller must complete the verification process by completely reading every file in the archive (e.g. with extractall).""" ...

def is_declared(self, name): """Check if a name is declared in this or an outer scope.""" if name in self.declared_locally or name in self.declared_parameter: return True return name in self.declared

def inspect(self, nodes): """Walk the node and check for identifiers. If the scope is hard (eg: enforce on a python level) overrides from outer scopes are tracked differently. """ visitor = FrameIdentifierVisitor(self.identifiers) for node in nodes: visitor.v...

def visit_Name(self, node): """All assignments to names go through this function.""" if node.ctx == 'store': self.identifiers.declared_locally.add(node.name) elif node.ctx == 'param': self.identifiers.declared_parameter.add(node.name) elif node.ctx == 'load' and n...

def visit_Include(self, node, frame): """Handles includes.""" if node.with_context: self.unoptimize_scope(frame) if node.ignore_missing: self.writeline('try:') self.indent() func_name = 'get_or_select_template' if isinstance(node.template, nod...

def visit_FromImport(self, node, frame): """Visit named imports.""" self.newline(node) self.write('included_template = environment.get_template(') self.visit(node.template, frame) self.write(', %r).' % self.name) if node.with_context: self.write('make_module(c...

def make_wheelfile_inner(base_name, base_dir='.'): """Create a whl file from all the files under 'base_dir'. Places .dist-info at the end of the archive.""" zip_filename = base_name + ".whl" log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir) # XXX support bz2, xz when availa...

def atomize(f, lock=None): """ Decorate a function with a reentrant lock to prevent multiple threads from calling said thread simultaneously. """ lock = lock or threading.RLock() @functools.wraps(f) def exec_atomic(*args, **kwargs): lock.acquire() try: return f(*args, **kwargs) finally: ...

def service_factory(app, host, port, report_message='service factory port {port}', provider_cls=HTTPServiceProvider): """Create service, start server. :param app: application to instantiate a service :param host: interface to bound provider :param port: port to b...

def unicode_urlencode(obj, charset='utf-8'): """URL escapes a single bytestring or unicode string with the given charset if applicable to URL safe quoting under all rules that need to be considered under all supported Python versions. If non strings are provided they are converted to their unicode ...

def matches_requirement(req, wheels): """List of wheels matching a requirement. :param req: The requirement to satisfy :param wheels: List of wheels to search. """ try: from pkg_resources import Distribution, Requirement except ImportError: raise RuntimeError("Cannot use require...

def populate_requirement_set(requirement_set, args, options, finder, session, name, wheel_cache): """ Marshal cmd line args into a requirement set. """ for req in args: requirement_set.add_requirement( InstallRequirement.from_l...

def call(__self, __obj, *args, **kwargs): """Call the callable with the arguments and keyword arguments provided but inject the active context or environment as first argument if the callable is a :func:`contextfunction` or :func:`environmentfunction`. """ if __debug__: ...

def export(self, location): """ Export the Bazaar repository at the url to the destination location """ temp_dir = tempfile.mkdtemp('-export', 'pip-') self.unpack(temp_dir) if os.path.exists(location): # Remove the location to make sure Bazaar can export it co...

def pip_version_check(session): """Check for an update for pip. Limit the frequency of checks to once per week. State is stored either in the active virtualenv or in the user's USER_CACHE_DIR keyed off the prefix of the pip script path. """ import pip # imported here to prevent circular import...

def lookup(self, ResponseGroup="Large", **kwargs): """Lookup an Amazon Product. :return: An instance of :class:`~.AmazonProduct` if one item was returned, or a list of :class:`~.AmazonProduct` instances if multiple items where returned. """ response...

def iterate_pages(self): """Iterate Pages. A generator which iterates over all pages. Keep in mind that Amazon limits the number of pages it makes available. :return: Yields lxml root elements. """ try: while True: yield self._que...

def _query(self, ResponseGroup="Large", **kwargs): """Query. Query Amazon search and check for errors. :return: An lxml root element. """ response = self.api.ItemSearch(ResponseGroup=ResponseGroup, **kwargs) root = objectify.fromstring(response) if r...

def ancestor(self): """This browse node's immediate ancestor in the browse node tree. :return: The ancestor as an :class:`~.AmazonBrowseNode`, or None. """ ancestors = getattr(self.element, 'Ancestors', None) if hasattr(ancestors, 'BrowseNode'): return Am...

def children(self): """This browse node's children in the browse node tree. :return: A list of this browse node's children in the browse node tree. """ children = [] child_nodes = getattr(self.element, 'Children') for child in getattr(child_nodes, 'BrowseNode', []): ...

def _safe_get_element(self, path, root=None): """Safe Get Element. Get a child element of root (multiple levels deep) failing silently if any descendant does not exist. :param root: Lxml element. :param path: String path (i.e. 'Items.Item.Offers.Offer')....

def _safe_get_element_text(self, path, root=None): """Safe get element text. Get element as string or None, :param root: Lxml element. :param path: String path (i.e. 'Items.Item.Offers.Offer'). :return: String or None. """ elem...

def _safe_get_element_date(self, path, root=None): """Safe get elemnent date. Get element as datetime.date or None, :param root: Lxml element. :param path: String path (i.e. 'Items.Item.Offers.Offer'). :return: datetime.date or None. "...

def price_and_currency(self): """Get Offer Price and Currency. Return price according to the following process: * If product has a sale return Sales Price, otherwise, * Return Price, otherwise, * Return lowest offer price, otherwise, * Return None. :return: ...

def list_price(self): """List Price. :return: A tuple containing: 1. Float representation of price. 2. ISO Currency code (string). """ price = self._safe_get_element_text('ItemAttributes.ListPrice.Amount') currency = self._safe_get_el...

def send(self, request, **kw): """ Send a request. Use the request information to see if it exists in the cache and cache the response if we need to and can. """ if request.method == 'GET': cached_response = self.controller.cached_request(request) if cache...

def build_response(self, request, response, from_cache=False): """ Build a response by making a request or using the cache. This will end up calling send and returning a potentially cached response """ if not from_cache and request.method == 'GET': # apply a...

def make_attrgetter(environment, attribute): """Returns a callable that looks up the given attribute from a passed object with the rules of the environment. Dots are allowed to access attributes of attributes. Integer parts in paths are looked up as integers. """ if not isinstance(attribute, s...

def do_title(s): """Return a titlecased version of the value. I.e. words will start with uppercase letters, all remaining characters are lowercase. """ rv = [] for item in re.compile(r'([-\s]+)(?u)').split(s): if not item: continue rv.append(item[0].upper() + item[1:].low...

def do_dictsort(value, case_sensitive=False, by='key'): """Sort a dict and yield (key, value) pairs. Because python dicts are unsorted you may want to use this function to order them by either key or value: .. sourcecode:: jinja {% for item in mydict|dictsort %} sort the dict by ke...

def do_sort(environment, value, reverse=False, case_sensitive=False, attribute=None): """Sort an iterable. Per default it sorts ascending, if you pass it true as first argument it will reverse the sorting. If the iterable is made of strings the third parameter can be used to control the ca...

def do_groupby(environment, value, attribute): """Group a sequence of objects by a common attribute. If you for example have a list of dicts or objects that represent persons with `gender`, `first_name` and `last_name` attributes and you want to group all users by genders you can do something like the ...

def do_map(*args, **kwargs): """Applies a filter on a sequence of objects or looks up an attribute. This is useful when dealing with lists of objects but you are really only interested in a certain value of it. The basic usage is mapping on an attribute. Imagine you have a list of users but you ar...

def create_logger(app): """Creates a logger for the given application. This logger works similar to a regular Python logger but changes the effective logging level based on the application's debug flag. Furthermore this function also removes all attached handlers in case there was a logger with th...

def constant_time_compare(val1, val2): """Returns True if the two strings are equal, False otherwise. The time taken is independent of the number of characters that match. Do not use this function for anything else than comparision with known length targets. This is should be implemented in C in ...

def base64_encode(string): """base64 encodes a single bytestring (and is tolerant to getting called with a unicode string). The resulting bytestring is safe for putting into URLs. """ string = want_bytes(string) return base64.urlsafe_b64encode(string).strip(b'=')

def base64_decode(string): """base64 decodes a single bytestring (and is tolerant to getting called with a unicode string). The result is also a bytestring. """ string = want_bytes(string, encoding='ascii', errors='ignore') return base64.urlsafe_b64decode(string + b'=' * (-len(string) % 4))

def verify_signature(self, key, value, sig): """Verifies the given signature matches the expected signature""" return constant_time_compare(sig, self.get_signature(key, value))

def derive_key(self): """This method is called to derive the key. If you're unhappy with the default key derivation choices you can override them here. Keep in mind that the key derivation in itsdangerous is not intended to be used as a security method to make a complex key out of a sho...

def get_signature(self, value): """Returns the signature for the given value""" value = want_bytes(value) key = self.derive_key() sig = self.algorithm.get_signature(key, value) return base64_encode(sig)

def sign(self, value): """Signs the given string.""" return value + want_bytes(self.sep) + self.get_signature(value)

def verify_signature(self, value, sig): """Verifies the signature for the given value.""" key = self.derive_key() try: sig = base64_decode(sig) except Exception: return False return self.algorithm.verify_signature(key, value, sig)

def unsign(self, signed_value): """Unsigns the given string.""" signed_value = want_bytes(signed_value) sep = want_bytes(self.sep) if sep not in signed_value: raise BadSignature('No %r found in value' % self.sep) value, sig = signed_value.rsplit(sep, 1) if sel...

def sign(self, value): """Signs the given string and also attaches a time information.""" value = want_bytes(value) timestamp = base64_encode(int_to_bytes(self.get_timestamp())) sep = want_bytes(self.sep) value = value + sep + timestamp return value + sep + self.get_signa...

def unsign(self, value, max_age=None, return_timestamp=False): """Works like the regular :meth:`~Signer.unsign` but can also validate the time. See the base docstring of the class for the general behavior. If `return_timestamp` is set to `True` the timestamp of the signature will be re...

def validate(self, signed_value, max_age=None): """Just validates the given signed value. Returns `True` if the signature exists and is valid, `False` otherwise.""" try: self.unsign(signed_value, max_age=max_age) return True except BadSignature: retur...

def load_payload(self, payload, serializer=None): """Loads the encoded object. This function raises :class:`BadPayload` if the payload is not valid. The `serializer` parameter can be used to override the serializer stored on the class. The encoded payload is always byte based. ...

def make_signer(self, salt=None): """A method that creates a new instance of the signer to be used. The default implementation uses the :class:`Signer` baseclass. """ if salt is None: salt = self.salt return self.signer(self.secret_key, salt=salt, **self.signer_kwargs...

def dumps(self, obj, salt=None): """Returns a signed string serialized with the internal serializer. The return value can be either a byte or unicode string depending on the format of the internal serializer. """ payload = want_bytes(self.dump_payload(obj)) rv = self.make...

def dump(self, obj, f, salt=None): """Like :meth:`dumps` but dumps into a file. The file handle has to be compatible with what the internal serializer expects. """ f.write(self.dumps(obj, salt))

def loads(self, s, salt=None): """Reverse of :meth:`dumps`, raises :exc:`BadSignature` if the signature validation fails. """ s = want_bytes(s) return self.load_payload(self.make_signer(salt).unsign(s))

def _loads_unsafe_impl(self, s, salt, load_kwargs=None, load_payload_kwargs=None): """Lowlevel helper function to implement :meth:`loads_unsafe` in serializer subclasses. """ try: return True, self.loads(s, salt=salt, **(load_kwargs or {})) ...

def load_unsafe(self, f, *args, **kwargs): """Like :meth:`loads_unsafe` but loads from a file. .. versionadded:: 0.15 """ return self.loads_unsafe(f.read(), *args, **kwargs)

def loads(self, s, max_age=None, return_timestamp=False, salt=None): """Reverse of :meth:`dumps`, raises :exc:`BadSignature` if the signature validation fails. If a `max_age` is provided it will ensure the signature is not older than that time in seconds. In case the signature is outda...

def dumps(self, obj, salt=None, header_fields=None): """Like :meth:`~Serializer.dumps` but creates a JSON Web Signature. It also allows for specifying additional fields to be included in the JWS Header. """ header = self.make_header(header_fields) signer = self.make_sign...

def loads(self, s, salt=None, return_header=False): """Reverse of :meth:`dumps`. If requested via `return_header` it will return a tuple of payload and header. """ payload, header = self.load_payload( self.make_signer(salt, self.algorithm).unsign(want_bytes(s)), r...

def server_error(request_id, error): """JSON-RPC server error. :param request_id: JSON-RPC request id :type request_id: int or str or None :param error: server error :type error: Exception """ response = { 'jsonrpc': '2.0', 'id': request_id, 'error': { ...

def findall(dir = os.curdir): """Find all files under 'dir' and return the list of full filenames (relative to 'dir'). """ all_files = [] for base, dirs, files in os.walk(dir, followlinks=True): if base==os.curdir or base.startswith(os.curdir+os.sep): base = base[2:] if b...

def find(cls, where='.', exclude=(), include=('*',)): """Return a list all Python packages found within directory 'where' 'where' should be supplied as a "cross-platform" (i.e. URL-style) path; it will be converted to the appropriate local path syntax. 'exclude' is a sequence of package...

def require_parents(packages): """ Exclude any apparent package that apparently doesn't include its parent. For example, exclude 'foo.bar' if 'foo' is not present. """ found = [] for pkg in packages: base, sep, child = pkg.rpartition('.') ...

def _all_dirs(base_path): """ Return all dirs in base_path, relative to base_path """ for root, dirs, files in os.walk(base_path, followlinks=True): for dir in dirs: yield os.path.relpath(os.path.join(root, dir), base_path)

def prepare_response(self, request, cached): """Verify our vary headers match and construct a real urllib3 HTTPResponse object. """ # Special case the '*' Vary value as it means we cannot actually # determine if the cached response is suitable for this request. if "*" in ...

def keygen(get_keyring=get_keyring): """Generate a public/private key pair.""" WheelKeys, keyring = get_keyring() ed25519ll = signatures.get_ed25519ll() wk = WheelKeys().load() keypair = ed25519ll.crypto_sign_keypair() vk = native(urlsafe_b64encode(keypair.vk)) sk = native(urlsafe_b64enco...

def unsign(wheelfile): """ Remove RECORD.jws from a wheel by truncating the zip file. RECORD.jws must be at the end of the archive. The zip file must be an ordinary archive, with the compressed files and the directory in the same order, and without any non-zip content after the truncation poi...

def verify(wheelfile): """Verify a wheel. The signature will be verified for internal consistency ONLY and printed. Wheel's own unpack/install commands verify the manifest against the signature and file contents. """ wf = WheelFile(wheelfile) sig_name = wf.distinfo_name + '/RECORD.jws'...

def unpack(wheelfile, dest='.'): """Unpack a wheel. Wheel content will be unpacked to {dest}/{name}-{ver}, where {name} is the package name and {ver} its version. :param wheelfile: The path to the wheel. :param dest: Destination directory (default to current directory). """ wf = WheelFile(...

def install(requirements, requirements_file=None, wheel_dirs=None, force=False, list_files=False, dry_run=False): """Install wheels. :param requirements: A list of requirements or wheel files to install. :param requirements_file: A file containing requirements to install. :p...

def install_scripts(distributions): """ Regenerate the entry_points console_scripts for the named distribution. """ try: from setuptools.command import easy_install import pkg_resources except ImportError: raise RuntimeError("'wheel install_scripts' needs setuptools.") f...

def arrange_all(self): """ Sets for the _draw_ and _ldraw_ attributes for each of the graph sub-elements by processing the xdot format of the graph. """ import godot.dot_data_parser parser = godot.dot_data_parser.GodotDataParser() xdot_data = self.create( format = "...

def redraw_canvas(self): """ Parses the Xdot attributes of all graph components and adds the components to a new canvas. """ from xdot_parser import XdotAttrParser xdot_parser = XdotAttrParser() canvas = self._component_default() for node in self.nodes: ...

def get_node(self, ID): """ Returns a node given an ID or None if no such node exists. """ node = super(Graph, self).get_node(ID) if node is not None: return node for graph in self.all_graphs: for each_node in graph.nodes: if each_node.ID ...

def _maxiter_default(self): """ Trait initialiser. """ mode = self.mode if mode == "KK": return 100 * len(self.nodes) elif mode == "major": return 200 else: return 600

def _get_all_graphs(self): """ Property getter. """ top_graph = self def get_subgraphs(graph): assert isinstance(graph, BaseGraph) subgraphs = graph.subgraphs[:] for subgraph in graph.subgraphs: subsubgraphs = get_subgraphs(subgraph) ...

def _directed_changed(self, new): """ Sets the connection string for all edges. """ if new: conn = "->" else: conn = "--" for edge in [e for g in self.all_graphs for e in g.edges]: edge.conn = conn

def _on_nodes(self): """ Maintains each branch's list of available nodes in order that they may move themselves (InstanceEditor values). """ all_graphs = self.all_graphs all_nodes = [n for g in all_graphs for n in g.nodes] for graph in all_graphs: for edg...

def _on_edges(self, object, name, old, new): """ Handles the list of edges for any graph changing. """ if name == "edges_items": edges = new.added elif name == "edges": edges = new else: edges = [] all_nodes = [n for g in self.all_grap...

def _support(self, caller): """Helper callback.""" markdown_content = caller() html_content = markdown.markdown( markdown_content, extensions=[ "markdown.extensions.fenced_code", CodeHiliteExtension(css_class="highlight"), "...

def _viewport_default(self): """ Trait initialiser """ viewport = Viewport(component=self.canvas, enable_zoom=True) viewport.tools.append(ViewportPanTool(viewport)) return viewport

def _component_changed(self, old, new): """ Handles the component being changed. """ canvas = self.canvas if old is not None: canvas.remove(old) if new is not None: canvas.add(new)

def _code_support(self, language, caller): """Helper callback.""" code = caller() # remove the leading whitespace so the whole block can be indented more easily with flow of page lines = code.splitlines() first_nonempty_line_index = 0 while not lines[first_nonempty_line...

def normal_left_dclick(self, event): """ Handles the left mouse button being double-clicked when the tool is in the 'normal' state. If the event occurred on this tool's component (or any contained component of that component), the method opens a Traits UI view on the object refe...

def _diagram_canvas_default(self): """ Trait initialiser """ canvas = Canvas() for tool in self.tools: canvas.tools.append(tool(canvas)) return canvas

def _viewport_default(self): """ Trait initialiser """ vp = Viewport(component=self.diagram_canvas, enable_zoom=True) vp.view_position = [0,0] vp.tools.append(ViewportPanTool(vp)) return vp

def _diagram_canvas_changed(self, new): """ Handles the diagram canvas being set """ logger.debug("Diagram canvas changed!") canvas = self.diagram_canvas for tool in self.tools: if canvas is not None: print "Adding tool: %s" % tool canvas.too...

def clear_canvas(self): """ Removes all components from the canvas """ logger.debug("Clearing the diagram canvas!") old_canvas = self.diagram_canvas # logger.debug("Canvas components: %s" % canvas.components) # for component in canvas.components: # canvas.remove(compon...