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def __complete_refers(self, value: str) -> Iterable[str]: """Return an iterable of possible completions matching the given prefix from the list of referred Vars.""" return map( lambda entry: f"{entry[0].name}", filter( Namespace.__completion_matcher(value)...
def complete(self, text: str) -> Iterable[str]: """Return an iterable of possible completions for the given text in this namespace.""" assert not text.startswith(":") if "/" in text: prefix, suffix = text.split("/", maxsplit=1) results = itertools.chain( ...
def args(self) -> Tuple: """Return the arguments for a trampolined function. If the function that is being trampolined has varargs, unroll the final argument if it is a sequence.""" if not self._has_varargs: return self._args try: final = self._args[-1] ...
def list(members, meta=None) -> List: # pylint:disable=redefined-builtin """Creates a new list.""" return List( # pylint: disable=abstract-class-instantiated plist(iterable=members), meta=meta )
def l(*members, meta=None) -> List: """Creates a new list from members.""" return List( # pylint: disable=abstract-class-instantiated plist(iterable=members), meta=meta )
def change_style(style, representer): """ This function is used to format the key value as a multi-line string maintaining the line breaks """ def new_representer(dumper, data): scalar = representer(dumper, data) scalar.style = style return scalar return new_representer
def get_public_key(platform, service, purpose, key_use, version, public_key, keys_folder): ''' Loads a public key from the file system and adds it to a dict of keys :param keys: A dict of keys :param platform the platform the key is for :param service the service the key is for :param key_use wh...
def get_private_key(platform, service, purpose, key_use, version, private_key, keys_folder): ''' Loads a private key from the file system and adds it to a dict of keys :param keys: A dict of keys :param platform the platform the key is for :param service the service the key is for :param key_use...
def decrypt_with_key(encrypted_token, key): """ Decrypts JWE token with supplied key :param encrypted_token: :param key: A (:class:`jwcrypto.jwk.JWK`) decryption key or a password :returns: The payload of the decrypted token """ try: jwe_token = jwe.JW...
def decrypt(token, key_store, key_purpose, leeway=120): """This decrypts the provided jwe token, then decodes resulting jwt token and returns the payload. :param str token: The jwe token. :param key_store: The key store. :param str key_purpose: Context for the key. :param int leeway: Extra allo...
def encrypt(json, key_store, key_purpose): """This encrypts the supplied json and returns a jwe token. :param str json: The json to be encrypted. :param key_store: The key store. :param str key_purpose: Context for the key. :return: A jwe token. """ jwt_key = key_store.get_key_for_purpose_...
def get_key_for_purpose_and_type(self, purpose, key_type): """ Gets a list of keys that match the purpose and key_type, and returns the first key in that list Note, if there are many keys that match the criteria, the one you get back will be random from that list :returns: A key object t...
def get_default_args(func): """ returns a dictionary of arg_name:default_values for the input function """ args, _, _, defaults, *rest = inspect.getfullargspec(func) return dict(zip(reversed(args), reversed(defaults)))
def map_arguments_to_objects(kwargs, objects, object_key, object_tuple_key, argument_key, result_value, default_result): """ :param kwargs: kwargs used to call the multiget function :param objects: objects returned from the inner function :param object_key: field or set of fields that map to the kwargs ...
def delete(self, *args): """Remove the key from the request cache and from memcache.""" cache = get_cache() key = self.get_cache_key(*args) if key in cache: del cache[key]
def multiget_cached(object_key, argument_key=None, default_result=None, result_fields=None, join_table_name=None, coerce_args_to_strings=False): """ :param object_key: the names of the attributes on the result object that are meant to match the function parameters :param argument_key: th...
def get_dot_target_name(version=None, module=None): """Returns the current version/module in -dot- notation which is used by `target:` parameters.""" version = version or get_current_version_name() module = module or get_current_module_name() return '-dot-'.join((version, module))
def get_dot_target_name_safe(version=None, module=None): """ Returns the current version/module in -dot- notation which is used by `target:` parameters. If there is no current version or module then None is returned. """ version = version or get_current_version_name_safe() module = module or get_current_mod...
def _get_os_environ_dict(keys): """Return a dictionary of key/values from os.environ.""" return {k: os.environ.get(k, _UNDEFINED) for k in keys}
def name(obj) -> str: """This helper function attempts to resolve the dot-colon import path for a given object. Specifically searches for classes and methods, it should be able to find nearly anything at either the module level or nested one level deep. Uses ``__qualname__`` if available. """ if not isroutine...
def to_python(self): """Deconstruct the ``Constraint`` instance to a tuple. Returns: tuple: The deconstructed ``Constraint``. """ return ( self.selector, COMPARISON_MAP.get(self.comparison, self.comparison), self.argument )
async def connect(self): """Connect to LASAF through a CAM-socket.""" self.reader, self.writer = await asyncio.open_connection( self.host, self.port, loop=self.loop) self.welcome_msg = await self.reader.read(self.buffer_size)
async def send(self, commands): """Send commands to LASAF through CAM-socket. Parameters ---------- commands : list of tuples or bytes string Commands as a list of tuples or a bytes string. cam.prefix is allways prepended before sending. Returns ...
async def receive(self): """Receive message from socket interface as list of OrderedDict.""" try: incomming = await self.reader.read(self.buffer_size) except OSError: return [] return _parse_receive(incomming)
async def wait_for(self, cmd, value=None, timeout=60): """Hang until command is received. If value is supplied, it will hang until ``cmd:value`` is received. Parameters ---------- cmd : string Command to wait for in bytestring from microscope CAM interface. If ...
def close(self): """Close stream.""" if self.writer.can_write_eof(): self.writer.write_eof() self.writer.close()
def lazyload(reference: str, *args, **kw): """Lazily load and cache an object reference upon dereferencing. Assign the result of calling this function with either an object reference passed in positionally: class MyClass: debug = lazyload('logging:debug') Or the attribute path to traverse (using `marrow.p...
def iter_parse(fiql_str): """Iterate through the FIQL string. Yield a tuple containing the following FIQL components for each iteration: - preamble: Any operator or opening/closing paranthesis preceding a constraint or at the very end of the FIQL string. - selector: The selector portion of ...
def parse_str_to_expression(fiql_str): """Parse a FIQL formatted string into an ``Expression``. Args: fiql_str (string): The FIQL formatted string we want to parse. Returns: Expression: An ``Expression`` object representing the parsed FIQL string. Raises: FiqlFormatExc...
def encode_model(obj): """Encode objects like ndb.Model which have a `.to_dict()` method.""" obj_dict = obj.to_dict() for key, val in obj_dict.iteritems(): if isinstance(val, types.StringType): try: unicode(val) except UnicodeDecodeError: # Encode binary strings (blobs) to base64. ...
def dump(ndb_model, fp, **kwargs): """Custom json dump using the custom encoder above.""" for chunk in NdbEncoder(**kwargs).iterencode(ndb_model): fp.write(chunk)
def object_hook_handler(self, val): """Handles decoding of nested date strings.""" return {k: self.decode_date(v) for k, v in val.iteritems()}
def decode_date(self, val): """Tries to decode strings that look like dates into datetime objects.""" if isinstance(val, basestring) and val.count('-') == 2 and len(val) > 9: try: dt = dateutil.parser.parse(val) # Check for UTC. if val.endswith(('+00:00', '-00:00', 'Z')): ...
def decode(self, val): """Override of the default decode method that also uses decode_date.""" # First try the date decoder. new_val = self.decode_date(val) if val != new_val: return new_val # Fall back to the default decoder. return json.JSONDecoder.decode(self, val)
def default(self, obj): """Overriding the default JSONEncoder.default for NDB support.""" obj_type = type(obj) # NDB Models return a repr to calls from type(). if obj_type not in self._ndb_type_encoding: if hasattr(obj, '__metaclass__'): obj_type = obj.__metaclass__ else: # T...
def traverse(obj, target:str, default=nodefault, executable:bool=False, separator:str='.', protect:bool=True): """Traverse down an object, using getattr or getitem. If ``executable`` is ``True`` any executable function encountered will be, with no arguments. Traversal will continue on the result of that call. You...
def load(target:str, namespace:str=None, default=nodefault, executable:bool=False, separators:Sequence[str]=('.', ':'), protect:bool=True): """This helper function loads an object identified by a dotted-notation string. For example:: # Load class Foo from example.objects load('example.objects:Foo') # L...
def run(): """Run client.""" cam = CAM() print(cam.welcome_msg) print(cam.send(b'/cmd:deletelist')) sleep(0.1) print(cam.receive()) print(cam.send(b'/cmd:deletelist')) sleep(0.1) print(cam.wait_for(cmd='cmd', timeout=0.1)) cam.close()
def validate_version(): """Validate version before release.""" import leicacam version_string = leicacam.__version__ versions = version_string.split('.', 3) try: for ver in versions: int(ver) except ValueError: print( 'Only integers are allowed in release ...
def generate(): """Generate changelog.""" old_dir = os.getcwd() proj_dir = os.path.join(os.path.dirname(__file__), os.pardir) os.chdir(proj_dir) version = validate_version() if not version: os.chdir(old_dir) return print('Generating changelog for version {}'.format(version)) ...
def strongly_connected_components(graph: Graph) -> List: """Find the strongly connected components in a graph using Tarjan's algorithm. The `graph` argument should be a dictionary mapping node names to sequences of successor nodes. """ assert check_argument_types() result = [] stack = [] low = {} def vi...
def robust_topological_sort(graph: Graph) -> list: """Identify strongly connected components then perform a topological sort of those components.""" assert check_argument_types() components = strongly_connected_components(graph) node_component = {} for component in components: for node in component: nod...
def set_parent(self, parent): """Set parent ``Expression`` for this object. Args: parent (Expression): The ``Expression`` which contains this object. Raises: FiqlObjectException: Parent must be of type ``Expression``. """ if not isinstance(parent, Expres...
def get_parent(self): """Get the parent ``Expression`` for this object. Returns: Expression: The ``Expression`` which contains this object. Raises: FiqlObjectException: Parent is ``None``. """ if not isinstance(self.parent, Expression): raise...
def add_operator(self, operator): """Add an ``Operator`` to the ``Expression``. The ``Operator`` may result in a new ``Expression`` if an ``Operator`` already exists and is of a different precedence. There are three possibilities when adding an ``Operator`` to an ``Expression``...
def add_element(self, element): """Add an element of type ``Operator``, ``Constraint``, or ``Expression`` to the ``Expression``. Args: element: ``Constraint``, ``Expression``, or ``Operator``. Returns: Expression: ``self`` Raises: FiqlObject...
def op_and(self, *elements): """Update the ``Expression`` by joining the specified additional ``elements`` using an "AND" ``Operator`` Args: *elements (BaseExpression): The ``Expression`` and/or ``Constraint`` elements which the "AND" ``Operator`` applies ...
def op_or(self, *elements): """Update the ``Expression`` by joining the specified additional ``elements`` using an "OR" ``Operator`` Args: *elements (BaseExpression): The ``Expression`` and/or ``Constraint`` elements which the "OR" ``Operator`` applies ...
def to_python(self): """Deconstruct the ``Expression`` instance to a list or tuple (If ``Expression`` contains only one ``Constraint``). Returns: list or tuple: The deconstructed ``Expression``. """ if len(self.elements) == 0: return None if len(s...
async def run(loop): """Run client.""" cam = AsyncCAM(loop=loop) await cam.connect() print(cam.welcome_msg) await cam.send(b'/cmd:deletelist') print(await cam.receive()) await cam.send(b'/cmd:deletelist') print(await cam.wait_for(cmd='cmd', timeout=0.1)) await cam.send(b'/cmd:deletel...
def logger(function): """Decorate passed in function and log message to module logger.""" @functools.wraps(function) def wrapper(*args, **kwargs): """Wrap function.""" sep = kwargs.get('sep', ' ') end = kwargs.get('end', '') # do not add newline by default out = sep.join([re...
def _parse_receive(incomming): """Parse received response. Parameters ---------- incomming : bytes string Incomming bytes from socket server. Returns ------- list of OrderedDict Received message as a list of OrderedDict. """ debug(b'< ' + incomming) # remove te...
def tuples_as_bytes(cmds): """Format list of tuples to CAM message with format /key:val. Parameters ---------- cmds : list of tuples List of commands as tuples. Returns ------- bytes Sequence of /key:val. Example ------- :: >>> tuples_as_bytes([('cmd',...
def tuples_as_dict(_list): """Translate a list of tuples to OrderedDict with key and val as strings. Parameters ---------- _list : list of tuples Returns ------- collections.OrderedDict Example ------- :: >>> tuples_as_dict([('cmd', 'val'), ('cmd2', 'val2')]) ...
def bytes_as_dict(msg): """Parse CAM message to OrderedDict based on format /key:val. Parameters ---------- msg : bytes Sequence of /key:val. Returns ------- collections.OrderedDict With /key:val => dict[key] = val. """ # decode bytes, assume '/' in start cmd_s...
def check_messages(msgs, cmd, value=None): """Check if specific message is present. Parameters ---------- cmd : string Command to check for in bytestring from microscope CAM interface. If ``value`` is falsey, value of received command does not matter. value : string Check if...
def _prepare_send(self, commands): """Prepare message to be sent. Parameters ---------- commands : list of tuples or bytes string Commands as a list of tuples or a bytes string. cam.prefix is allways prepended before sending. Returns ------- ...
def connect(self): """Connect to LASAF through a CAM-socket.""" self.socket = socket.socket() self.socket.connect((self.host, self.port)) self.socket.settimeout(False) # non-blocking sleep(self.delay) # wait for response self.welcome_msg = self.socket.recv( ...
def flush(self): """Flush incomming socket messages.""" debug('flushing incomming socket messages') try: while True: msg = self.socket.recv(self.buffer_size) debug(b'< ' + msg) except socket.error: pass
def send(self, commands): """Send commands to LASAF through CAM-socket. Parameters ---------- commands : list of tuples or bytes string Commands as a list of tuples or a bytes string. cam.prefix is allways prepended before sending. Returns ------...
def receive(self): """Receive message from socket interface as list of OrderedDict.""" try: incomming = self.socket.recv(self.buffer_size) except socket.error: return [] return _parse_receive(incomming)
def wait_for(self, cmd, value=None, timeout=60): """Hang until command is received. If value is supplied, it will hang until ``cmd:value`` is received. Parameters ---------- cmd : string Command to wait for in bytestring from microscope CAM interface. If ...
def enable(self, slide=0, wellx=1, welly=1, fieldx=1, fieldy=1): """Enable a given scan field.""" # pylint: disable=too-many-arguments cmd = [ ('cmd', 'enable'), ('slide', str(slide)), ('wellx', str(wellx)), ('welly', str(welly)), ('fie...
def save_template(self, filename="{ScanningTemplate}leicacam.xml"): """Save scanning template to filename.""" cmd = [ ('sys', '0'), ('cmd', 'save'), ('fil', str(filename)) ] self.send(cmd) return self.wait_for(*cmd[0])
def load_template(self, filename="{ScanningTemplate}leicacam.xml"): """Load scanning template from filename. Template needs to exist in database, otherwise it will not load. Parameters ---------- filename : str Filename to template to load. Filename may contain path...
def get_information(self, about='stage'): """Get information about given keyword. Defaults to stage.""" cmd = [ ('cmd', 'getinfo'), ('dev', str(about)) ] self.send(cmd) return self.wait_for(*cmd[1])
def incfile(fname, fpointer, lrange="1,6-", sdir=None): r""" Include a Python source file in a docstring formatted in reStructuredText. :param fname: File name, relative to environment variable :bash:`${TRACER_DIR}` :type fname: string :param fpointer: Output function pointer. N...
def locate_package_json(): """ Find and return the location of package.json. """ directory = settings.SYSTEMJS_PACKAGE_JSON_DIR if not directory: raise ImproperlyConfigured( "Could not locate 'package.json'. Set SYSTEMJS_PACKAGE_JSON_DIR " "to the directory that holds...
def parse_package_json(): """ Extract the JSPM configuration from package.json. """ with open(locate_package_json()) as pjson: data = json.loads(pjson.read()) return data
def find_systemjs_location(): """ Figure out where `jspm_packages/system.js` will be put by JSPM. """ location = os.path.abspath(os.path.dirname(locate_package_json())) conf = parse_package_json() if 'jspm' in conf: conf = conf['jspm'] try: conf = conf['directories'] ex...
def _handle_api_error_with_json(http_exc, jsondata, response): """Handle YOURLS API errors. requests' raise_for_status doesn't show the user the YOURLS json response, so we parse that here and raise nicer exceptions. """ if 'code' in jsondata and 'message' in jsondata: code = jsondata['code...
def _validate_yourls_response(response, data): """Validate response from YOURLS server.""" try: response.raise_for_status() except HTTPError as http_exc: # Collect full HTTPError information so we can reraise later if required. http_error_info = sys.exc_info() # We will rera...
def _homogenize_waves(wave_a, wave_b): """ Generate combined independent variable vector. The combination is from two waveforms and the (possibly interpolated) dependent variable vectors of these two waveforms """ indep_vector = _get_indep_vector(wave_a, wave_b) dep_vector_a = _interp_dep_v...
def _interp_dep_vector(wave, indep_vector): """Create new dependent variable vector.""" dep_vector_is_int = wave.dep_vector.dtype.name.startswith("int") dep_vector_is_complex = wave.dep_vector.dtype.name.startswith("complex") if (wave.interp, wave.indep_scale) == ("CONTINUOUS", "LOG"): wave_inte...
def _get_indep_vector(wave_a, wave_b): """Create new independent variable vector.""" exobj = pexdoc.exh.addex(RuntimeError, "Independent variable ranges do not overlap") min_bound = max(np.min(wave_a.indep_vector), np.min(wave_b.indep_vector)) max_bound = min(np.max(wave_a.indep_vector), np.max(wave_b.i...
def _verify_compatibility(wave_a, wave_b, check_dep_units=True): """Verify that two waveforms can be combined with various mathematical functions.""" exobj = pexdoc.exh.addex(RuntimeError, "Waveforms are not compatible") ctuple = ( bool(wave_a.indep_scale != wave_b.indep_scale), bool(wave_a....
def load_systemjs_manifest(self): """ Load the existing systemjs manifest and remove any entries that no longer exist on the storage. """ # backup the original name _manifest_name = self.manifest_name # load the custom bundle manifest self.manifest_name =...
def trace_pars(mname): """Define trace parameters.""" pickle_fname = os.path.join(os.path.dirname(__file__), "{0}.pkl".format(mname)) ddir = os.path.dirname(os.path.dirname(__file__)) moddb_fname = os.path.join(ddir, "moddb.json") in_callables_fname = moddb_fname if os.path.exists(moddb_fname) else ...
def run_trace( mname, fname, module_prefix, callable_names, no_print, module_exclude=None, callable_exclude=None, debug=False, ): """Run module tracing.""" # pylint: disable=R0913 module_exclude = [] if module_exclude is None else module_exclude callable_exclude = [] if c...
def shorten(self, url, keyword=None, title=None): """Shorten URL with optional keyword and title. Parameters: url: URL to shorten. keyword: Optionally choose keyword for short URL, otherwise automatic. title: Optionally choose title, otherwise taken from web page. ...
def expand(self, short): """Expand short URL or keyword to long URL. Parameters: short: Short URL (``http://example.com/abc``) or keyword (abc). :return: Expanded/long URL, e.g. ``https://www.youtube.com/watch?v=dQw4w9WgXcQ`` Raises: ~yourls.ex...
def url_stats(self, short): """Get stats for short URL or keyword. Parameters: short: Short URL (http://example.com/abc) or keyword (abc). Returns: ShortenedURL: Shortened URL and associated data. Raises: ~yourls.exceptions.YOURLSHTTPError: HTTP err...
def stats(self, filter, limit, start=None): """Get stats about links. Parameters: filter: 'top', 'bottom', 'rand', or 'last'. limit: Number of links to return from filter. start: Optional start number. Returns: Tuple containing list of ShortenedU...
def db_stats(self): """Get database statistics. Returns: DBStats: Total clicks and links statistics. Raises: requests.exceptions.HTTPError: Generic HTTP Error """ data = dict(action='db-stats') jsondata = self._api_request(params=data) s...
def ste(command, nindent, mdir, fpointer): r""" Echo terminal output. Print STDOUT resulting from a given Bash shell command (relative to the package :code:`pypkg` directory) formatted in reStructuredText :param command: Bash shell command, relative to :bash:`${PMISC_DIR}/pypkg...
def term_echo(command, nindent=0, env=None, fpointer=None, cols=60): """ Print STDOUT resulting from a Bash shell command formatted in reStructuredText. :param command: Bash shell command :type command: string :param nindent: Indentation level :type nindent: integer :param env: Environm...
def log(self, msg, level=2): """ Small log helper """ if self.verbosity >= level: self.stdout.write(msg)
def cached(method) -> property: """alternative to reify and property decorators. caches the value when it's generated. It cashes it as instance._name_of_the_property. """ name = "_" + method.__name__ @property def wrapper(self): try: return getattr(self, name) except...
def chunkiter(iterable, chunksize): """break an iterable into chunks and yield those chunks as lists until there's nothing left to yeild. """ iterator = iter(iterable) for chunk in iter(lambda: list(itertools.islice(iterator, chunksize)), []): yield chunk
def chunkprocess(func): """take a function that taks an iterable as the first argument. return a wrapper that will break an iterable into chunks using chunkiter and run each chunk in function, yielding the value of each function call as an iterator. """ @functools.wraps(func) def wrapper(it...
def flatten(iterable, map2iter=None): """recursively flatten nested objects""" if map2iter and isinstance(iterable): iterable = map2iter(iterable) for item in iterable: if isinstance(item, str) or not isinstance(item, abc.Iterable): yield item else: yield fro...
def deepupdate( mapping: abc.MutableMapping, other: abc.Mapping, listextend=False ): """update one dictionary from another recursively. Only individual values will be overwritten--not entire branches of nested dictionaries. """ def inner(other, previouskeys): """previouskeys is a tuple ...
def quietinterrupt(msg=None): """add a handler for SIGINT that optionally prints a given message. For stopping scripts without having to see the stacktrace. """ def handler(): if msg: print(msg, file=sys.stderr) sys.exit(1) signal.signal(signal.SIGINT, handler)
def printtsv(table, sep="\t", file=sys.stdout): """stupidly print an iterable of iterables in TSV format""" for record in table: print(*record, sep=sep, file=file)
def mkdummy(name, **attrs): """Make a placeholder object that uses its own name for its repr""" return type( name, (), dict(__repr__=(lambda self: "<%s>" % name), **attrs) )()
def pipe(value, *functions, funcs=None): """pipe(value, f, g, h) == h(g(f(value)))""" if funcs: functions = funcs for function in functions: value = function(value) return value
def pipeline(*functions, funcs=None): """like pipe, but curried: pipline(f, g, h)(*args, **kwargs) == h(g(f(*args, **kwargs))) """ if funcs: functions = funcs head, *tail = functions return lambda *args, **kwargs: pipe(head(*args, **kwargs), funcs=tail)
def human_readable(self, decimal=False): """returns the size of size as a tuple of: (number, single-letter-unit) If the decimal flag is set to true, units 1000 is used as the divisor, rather than 1024. """ divisor = 1000 if decimal else 1024 number = int(sel...
def from_str(cls, human_readable_str, decimal=False, bits=False): """attempt to parse a size in bytes from a human-readable string.""" divisor = 1000 if decimal else 1024 num = [] c = "" for c in human_readable_str: if c not in cls.digits: break ...
def cli(ctx, apiurl, signature, username, password): """Command line interface for YOURLS. Configuration parameters can be passed as switches or stored in .yourls or ~/.yourls. If your YOURLS server requires authentication, please provide one of the following: \b • apiurl and signature ...