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'''Fail if max element in ``sequence`` is separated from the present by more than ``lag`` as determined by the '<=' operator. If the max element is a datetime, "present" is defined as ``datetime.now()``; if the max element is a date, "present" is defined as ``date.today(...
def assertDateTimesLagLessEqual(self, sequence, lag, msg=None)
Fail if max element in ``sequence`` is separated from the present by more than ``lag`` as determined by the '<=' operator. If the max element is a datetime, "present" is defined as ``datetime.now()``; if the max element is a date, "present" is defined as ``date.today()``. ...
3.568411
1.695366
2.104802
'''Fail if ``dt`` has a non-null ``tzinfo`` attribute. Parameters ---------- dt : datetime msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will be used. Raises ------ TypeError ...
def assertTimeZoneIsNone(self, dt, msg=None)
Fail if ``dt`` has a non-null ``tzinfo`` attribute. Parameters ---------- dt : datetime msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will be used. Raises ------ TypeError If ``dt`` i...
3.997305
1.87699
2.129636
'''Fail unless ``dt`` has a non-null ``tzinfo`` attribute. Parameters ---------- dt : datetime msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will be used. Raises ------ TypeError ...
def assertTimeZoneIsNotNone(self, dt, msg=None)
Fail unless ``dt`` has a non-null ``tzinfo`` attribute. Parameters ---------- dt : datetime msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will be used. Raises ------ TypeError If ``dt...
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1.90901
2.081015
'''Fail unless ``dt``'s ``tzinfo`` attribute equals ``tz`` as determined by the '==' operator. Parameters ---------- dt : datetime tz : timezone msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will ...
def assertTimeZoneEqual(self, dt, tz, msg=None)
Fail unless ``dt``'s ``tzinfo`` attribute equals ``tz`` as determined by the '==' operator. Parameters ---------- dt : datetime tz : timezone msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will be used. ...
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1.525038
2.189463
'''Fail if ``dt``'s ``tzinfo`` attribute equals ``tz`` as determined by the '!=' operator. Parameters ---------- dt : datetime tz : timezone msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will be u...
def assertTimeZoneNotEqual(self, dt, tz, msg=None)
Fail if ``dt``'s ``tzinfo`` attribute equals ``tz`` as determined by the '!=' operator. Parameters ---------- dt : datetime tz : timezone msg : str If not provided, the :mod:`marbles.mixins` or :mod:`unittest` standard message will be used. ...
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1.549477
2.125312
for cls in inspect.getmro(meth.__self__.__class__): if cls.__dict__.get(meth.__name__) is meth: return '{}.{}'.format(cls.__module__, cls.__name__) meth = meth.__func__ if inspect.isfunction(meth): module = meth.__qualname__.split('.<locals>', 1)[0] cls = ...
def _class_defining_method(meth): # pragma: no cover '''Gets the name of the class that defines meth. Adapted from http://stackoverflow.com/questions/3589311/get-defining-class-of-unbound-method-object-in-python-3/25959545#25959545. ''' if inspect.ismethod(meth)
Gets the name of the class that defines meth. Adapted from http://stackoverflow.com/questions/3589311/get-defining-class-of-unbound-method-object-in-python-3/25959545#25959545.
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'''Configure what assertion logging is done. Settings configured with this method are overridden by environment variables. Parameters ---------- logfile : str or bytes or file object If a string or bytes object, we write to that filename. If an o...
def configure(self, **kwargs)
Configure what assertion logging is done. Settings configured with this method are overridden by environment variables. Parameters ---------- logfile : str or bytes or file object If a string or bytes object, we write to that filename. If an open file ob...
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'''Locates the ``msg`` argument in a function signature. We need to determine where we expect to find ``msg`` if it's passed positionally, so we can extract it if the user passed it. Returns ------- tuple The index of the ``msg`` param, the default value for it, and the number ...
def _find_msg_argument(signature)
Locates the ``msg`` argument in a function signature. We need to determine where we expect to find ``msg`` if it's passed positionally, so we can extract it if the user passed it. Returns ------- tuple The index of the ``msg`` param, the default value for it, and the number of non-...
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'''Extracts the ``msg`` argument from the passed ``args``. Returns ------- tuple The found ``msg``, the args and kwargs with that ``msg`` removed, and any remaining positional args after ``msg``. ''' rem_args = [] if 'msg' in kwargs: msg = kwargs.pop('msg') elif ...
def _extract_msg(args, kwargs, msg_idx, default_msg, non_msg_params)
Extracts the ``msg`` argument from the passed ``args``. Returns ------- tuple The found ``msg``, the args and kwargs with that ``msg`` removed, and any remaining positional args after ``msg``.
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'''Wraps each paragraph in ``text`` individually. Parameters ---------- text : str Returns ------- str Single string containing the wrapped paragraphs. ''' pilcrow = re.compile(r'(\n\s*\n)', re.MULTILINE) list_prefix = re.comp...
def wrap(self, text, **kwargs)
Wraps each paragraph in ``text`` individually. Parameters ---------- text : str Returns ------- str Single string containing the wrapped paragraphs.
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1.155183
'''Returns a string displaying the whole statement that failed, with a '>' indicator on the line starting the expression. ''' # This will be used by linecache to read the source of this # module. See the docstring for _find_assert_stmt below which # explains how. ...
def assert_stmt(self)
Returns a string displaying the whole statement that failed, with a '>' indicator on the line starting the expression.
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'''Given a Python module name, filename and line number, find the lines that are part of the statement containing that line. Python stacktraces, when reporting which line they're on, always show the last line of the statement. This can be confusing if the statement spans multipl...
def _find_assert_stmt(filename, linenumber, leading=1, following=2, module_globals=None)
Given a Python module name, filename and line number, find the lines that are part of the statement containing that line. Python stacktraces, when reporting which line they're on, always show the last line of the statement. This can be confusing if the statement spans multiple lines. Th...
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'''Ensures that the annotation has the right fields.''' required_keys = set(self._required_keys) keys = set(key for key, val in annotation.items() if val) missing_keys = required_keys.difference(keys) if missing_keys: error = 'Annotation missing required fields: {0}'....
def _validate_annotation(self, annotation)
Ensures that the annotation has the right fields.
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for e in evals: if e in tc_deps: # we've already included it continue else: if e in deps: # has additional dependnecies tc_deps[e]=deps[e] # add to tc_deps the dependencies of the dependencies _tchelper(tc_deps,deps[e],deps) return tc_deps
def _tchelper(tc_deps,evals,deps)
modifies graph in place
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if not isinstance(evals,list): evals=[evals] if feed_dict is None: feed_dict={} if breakpoints is None: breakpoints=[] self.state=RUNNING self._original_evals=evals self._original_feed_dict=feed_dict self._exe_order=op_store.compute_exe_order(evals) self._init_evals_bps(evals, breakpoints) ...
def run(self, evals, feed_dict=None, breakpoints=None, break_immediately=False)
starts the debug session
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next_node=self._exe_order[self.step] self._eval(next_node) self.step+=1 if self.step==len(self._exe_order): return self._finish() else: # if stepping, return the value of the node we just # evaled return self._break(value=self._cache.get(next_node.name))
def s(self)
step to the next node in the execution order
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i,node=self._get_next_eval() if node.name in self._bpset: if self.state == RUNNING: return self._break() self.state = RUNNING self._eval(node) # increment to next node self.step=i+1 if self.step < len(self._exe_order): return self.c() else: return self._finish()
def c(self)
continue
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return [self._cache.get(i.name,None) for i in self._original_evals]
def get_values(self)
returns final values (same result as tf.Session.run())
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if isinstance(node,tf.Tensor): return self._cache.get(node.name,None) elif isinstance(node,tf.Operation): return None else: # handle ascii, unicode strings return self._cache.get(node,None)
def get_value(self, node)
retrieve a node value from the cache
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# If an eval or bp is the tf.Placeholder output of a tdb.PythonOp, replace it with its respective PythonOp node evals2=[op_store.get_op(t) if op_store.is_htop_out(t) else t for t in evals] breakpoints2=[op_store.get_op(t) if op_store.is_htop_out(t) else t for t in breakpoints] # compute execution order self._...
def _init_evals_bps(self, evals, breakpoints)
HTOps may depend on tf.Tensors that are not in eval. We need to have all inputs to HTOps ready upon evaluation. 1. all evals that were originally specified are added 2. each HTOp in the execution closure needs to be in eval (they won't be eval'ed automatically by Session.run) 3. if an input to an HTOp is a tf...
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# if node.name == 'Momentum': # pdb.set_trace() if isinstance(node,HTOp): # All Tensors MUST be in the cache. feed_dict=dict((t,self._cache[t.name]) for t in node.inputs) node.run(feed_dict) # this will populate self._cache on its own else: # is a TensorFlow node if isinstance(node,tf.Tensor): ...
def _eval(self, node)
node is a TensorFlow Op or Tensor from self._exe_order
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1.07121
print('Extracting', filename) with gzip.open(filename) as bytestream: bytestream.read(16) buf = bytestream.read(IMAGE_SIZE * IMAGE_SIZE * num_images) data = np.frombuffer(buf, dtype=np.uint8).astype(np.float32) data = (data - (PIXEL_DEPTH / 2.0)) / PIXEL_DEPTH data = data.reshape(num_images, ...
def extract_data(filename, num_images)
Extract the images into a 4D tensor [image index, y, x, channels]. Values are rescaled from [0, 255] down to [-0.5, 0.5].
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# Remove 'tower_[0-9]/' from the name in case this is a multi-GPU training # session. This helps the clarity of presentation on tensorboard. tf.histogram_summary(x.name + '/activations', x) tf.scalar_summary(x.name + '/sparsity', tf.nn.zero_fraction(x))
def _activation_summary(x)
Helper to create summaries for activations. Creates a summary that provides a histogram of activations. Creates a summary that measure the sparsity of activations. Args: x: Tensor Returns: nothing
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return 100.0 - ( 100.0 * np.sum(np.argmax(predictions, 1) == np.argmax(labels, 1)) / predictions.shape[0])
def error_rate(predictions, labels)
Return the error rate based on dense predictions and 1-hot labels.
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if name in _ops: return _ops[name] else: g=tf.get_default_graph() return g.as_graph_element(name)
def get_node(name)
returns HTOp or tf graph element corresponding to requested node name
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deps={} g=tf.get_default_graph() for op in g.get_operations(): d=set([i.name for i in op.control_inputs]) for t in op.inputs: if is_htop_out(t): d.add(get_op(t).name) else: d.add(t.name) deps[op.name]=d for t in op.outputs: deps[t.name]=set([op.name]) # do the same thing with HTOps for o...
def compute_node_deps()
- returns the full dependency graph of ALL ops and ALL tensors Map<string,list<string>> where key=node name, values=list of dependency names If an Op takes in a placeholder tensor that is the ouput of a PythonOp, we need to replace that Placeholder with the PythonOp.
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# construct a PythonOp and return its TensorNode outputs, if it has one global COUNT # check outputs if not isinstance(outputs,list): outputs=[outputs] for tensor in outputs: if tensor.op.type != 'Placeholder': raise TypeError('Output nodes must be Placeholders') op=PythonOp('Python', fn, COUNT, inputs,...
def python_op(fn, inputs=None, outputs=None)
User-exposed api method for constructing a python_node Args: fn: python function that computes some np.ndarrays given np.ndarrays as inputs. it can have arbitrary side effects. inputs: array of tf.Tensors (optional). These are where fn derives its values from outputs: tf.Placeholder nodes (optional). These are con...
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if results is None: # self.fn was probably only used to compute side effects. return elif isinstance(results,np.ndarray): # fn returns single np.ndarray. # re-format it into a list results=[results] # check validity of fn output elif isinstance(results,list): if len(results) is not len(self...
def cache_values(self, results)
loads into DebugSession cache
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global _dbsession _dbsession=debug_session.DebugSession(session) return _dbsession.run(evals,feed_dict,breakpoints,break_immediately)
def debug(evals,feed_dict=None,breakpoints=None,break_immediately=False,session=None)
spawns a new debug session
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if not is_notebook(): print('Python session is not running in a Notebook Kernel') return global _comm kernel=get_ipython().kernel kernel.comm_manager.register_target('tdb',handle_comm_opened) # initiate connection to frontend. _comm=Comm(target_name='tdb',data={}) # bind recv handler _comm.on_msg(None)
def connect()
establish connection to frontend notebook
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data={"msg_type":"action", "action":action} if params is not None: data['params']=params _comm.send(data)
def send_action(action, params=None)
helper method for sending actions
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imgdata = StringIO.StringIO() fig.savefig(imgdata, format='png') imgdata.seek(0) # rewind the data uri = 'data:image/png;base64,' + urllib.quote(b64encode(imgdata.buf)) send_action("update_plot",params={"src":uri, "name":name})
def send_fig(fig,name)
sends figure to frontend
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# normalize to 0-1 range if normalize: data -= data.min() data /= data.max() n = int(np.ceil(np.sqrt(data.shape[0]))) # force square padding = ((0, n ** 2 - data.shape[0]), (0, padsize), (0, padsize)) + ((0, 0),) * (data.ndim - 3) data = np.pad(data, padding, mode='constant', c...
def viz_square(data, normalize=True, cmap=plt.cm.gray, padsize=1, padval=0)
takes a np.ndarray of shape (n, height, width) or (n, height, width, channels) visualize each (height, width) thing in a grid of size approx. sqrt(n) by sqrt(n) However, this only draws first input channel
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global COUNT, ht # check outputs if not isinstance(outputs,list): outputs=[outputs] for tensor in outputs: if tensor.op.type is not 'Placeholder': raise Error('Output nodes must be Placeholders') op=PlotOp(fn, COUNT, inputs, outputs) op_store.add_op(op) COUNT+=1 # if node has output, return value ...
def plot_op(fn, inputs=[], outputs=[])
User-exposed api method for constructing a python_node Args: fn: python function that computes some np.ndarrays given np.ndarrays as inputs. it can have arbitrary side effects. inputs: array of tf.Tensors (optional). These are where fn derives its values from outputs: tf.Placeholder nodes (optional). These are con...
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'''Create a handler for query engine based on a URL. The following environment variables are used for default connection: TD_API_KEY API key TD_API_SERVER API server (default: api.treasuredata.com) HTTP_PROXY HTTP proxy (optional) Parameters ---------- url : string ...
def create_engine(url, con=None, header=True, show_progress=5.0, clear_progress=True)
Create a handler for query engine based on a URL. The following environment variables are used for default connection: TD_API_KEY API key TD_API_SERVER API server (default: api.treasuredata.com) HTTP_PROXY HTTP proxy (optional) Parameters ---------- url : string Eng...
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2.559017
'''Read Treasure Data query into a DataFrame. Returns a DataFrame corresponding to the result set of the query string. Optionally provide an index_col parameter to use one of the columns as the index, otherwise default integer index will be used. Parameters ---------- query : string ...
def read_td_query(query, engine, index_col=None, parse_dates=None, distributed_join=False, params=None)
Read Treasure Data query into a DataFrame. Returns a DataFrame corresponding to the result set of the query string. Optionally provide an index_col parameter to use one of the columns as the index, otherwise default integer index will be used. Parameters ---------- query : string Query...
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2.756616
'''Read Treasure Data job result into a DataFrame. Returns a DataFrame corresponding to the result set of the job. This method waits for job completion if the specified job is still running. Optionally provide an index_col parameter to use one of the columns as the index, otherwise default integer ...
def read_td_job(job_id, engine, index_col=None, parse_dates=None)
Read Treasure Data job result into a DataFrame. Returns a DataFrame corresponding to the result set of the job. This method waits for job completion if the specified job is still running. Optionally provide an index_col parameter to use one of the columns as the index, otherwise default integer index w...
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2.769346
'''Read Treasure Data table into a DataFrame. The number of returned rows is limited by "limit" (default 10,000). Setting limit=None means all rows. Be careful when you set limit=None because your table might be very large and the result does not fit into memory. Parameters ---------- tabl...
def read_td_table(table_name, engine, index_col=None, parse_dates=None, columns=None, time_range=None, limit=10000)
Read Treasure Data table into a DataFrame. The number of returned rows is limited by "limit" (default 10,000). Setting limit=None means all rows. Be careful when you set limit=None because your table might be very large and the result does not fit into memory. Parameters ---------- table_name ...
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primary_key = self.__current_descriptor.get('primaryKey', []) if not isinstance(primary_key, list): primary_key = [primary_key] return primary_key
def primary_key(self)
https://github.com/frictionlessdata/tableschema-py#schema
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foreign_keys = self.__current_descriptor.get('foreignKeys', []) for key in foreign_keys: key.setdefault('fields', []) key.setdefault('reference', {}) key['reference'].setdefault('resource', '') key['reference'].setdefault('fields', []) ...
def foreign_keys(self)
https://github.com/frictionlessdata/tableschema-py#schema
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self.__current_descriptor.setdefault('fields', []) self.__current_descriptor['fields'].append(descriptor) self.__build() return self.__fields[-1]
def add_field(self, descriptor)
https://github.com/frictionlessdata/tableschema-py#schema
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for field in self.__next_descriptor['fields']: if field['name'] == name: field.update(update) return True return False
def update_field(self, name, update)
https://github.com/frictionlessdata/tableschema-py#schema
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field = self.get_field(name) if field: predicat = lambda field: field.get('name') != name self.__current_descriptor['fields'] = filter( predicat, self.__current_descriptor['fields']) self.__build() return field
def remove_field(self, name)
https://github.com/frictionlessdata/tableschema-py#schema
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# Prepare result = [] errors = [] # Check row length if len(row) != len(self.fields): message = 'Row length %s doesn\'t match fields count %s' message = message % (len(row), len(self.fields)) raise exceptions.CastError(message) ...
def cast_row(self, row, fail_fast=False)
https://github.com/frictionlessdata/tableschema-py#schema
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# Get headers if isinstance(headers, int): headers_row = headers while True: headers_row -= 1 headers = rows.pop(0) if not headers_row: break elif not isinstance(headers, list): head...
def infer(self, rows, headers=1, confidence=0.75)
https://github.com/frictionlessdata/tableschema-py#schema
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mode = 'w' encoding = 'utf-8' if six.PY2: mode = 'wb' encoding = None helpers.ensure_dir(target) with io.open(target, mode=mode, encoding=encoding) as file: json.dump(self.__current_descriptor, file, indent=4, ensure_ascii=ensure_ascii...
def save(self, target, ensure_ascii=True)
https://github.com/frictionlessdata/tableschema-py#schema
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1.043001
dirpath = os.path.dirname(path) if dirpath and not os.path.exists(dirpath): os.makedirs(dirpath)
def ensure_dir(path)
Ensure directory exists. Args: path(str): dir path
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cast = str if six.PY2: cast = unicode # noqa return cast(value).lower()
def normalize_value(value)
Convert value to string and make it lower cased.
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# Null value if value in self.__missing_values: value = None # Cast value cast_value = value if value is not None: cast_value = self.__cast_function(value) if cast_value == config.ERROR: raise exceptions.CastError(( ...
def cast_value(self, value, constraints=True)
https://github.com/frictionlessdata/tableschema-py#field
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# Prepare unique checks if cast: unique_fields_cache = {} if self.schema: unique_fields_cache = _create_unique_fields_cache(self.schema) # Open/iterate stream self.__stream.open() iterator = self.__stream.iter(extended=True) ...
def iter(self, keyed=False, extended=False, cast=True, relations=False)
https://github.com/frictionlessdata/tableschema-py#schema
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result = [] rows = self.iter(keyed=keyed, extended=extended, cast=cast, relations=relations) for count, row in enumerate(rows, start=1): result.append(row) if count == limit: break return result
def read(self, keyed=False, extended=False, cast=True, relations=False, limit=None)
https://github.com/frictionlessdata/tableschema-py#schema
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2.379247
1.062402
if self.__schema is None or self.__headers is None: # Infer (tabulator) if not self.__storage: with self.__stream as stream: if self.__schema is None: self.__schema = Schema() self.__schema.infe...
def infer(self, limit=100, confidence=0.75)
https://github.com/frictionlessdata/tableschema-py#schema
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3.584669
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# Save (tabulator) if storage is None: with Stream(self.iter, headers=self.__schema.headers) as stream: stream.save(target, **options) return True # Save (storage) else: if not isinstance(storage, Storage): st...
def save(self, target, storage=None, **options)
https://github.com/frictionlessdata/tableschema-py#schema
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4.687294
1.214093
descriptor = tableschema.infer(data, encoding=encoding, limit=row_limit, confidence=confidence) if to_file: with io.open(to_file, mode='w+t', encoding='utf-8') as dest: dest.write(js...
def infer(data, row_limit, confidence, encoding, to_file)
Infer a schema from data. * data must be a local filepath * data must be CSV * the file encoding is assumed to be UTF-8 unless an encoding is passed with --encoding * the first line of data must be headers * these constraints are just for the CLI
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0.901
try: tableschema.validate(schema) click.echo("Schema is valid") sys.exit(0) except tableschema.exceptions.ValidationError as exception: click.echo("Schema is not valid") click.echo(exception.errors) sys.exit(1)
def validate(schema)
Validate that a supposed schema is in fact a Table Schema.
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# Deprecated arguments order is_string = lambda value: isinstance(value, six.string_types) if isinstance(source, list) and all(map(is_string, source)): warnings.warn('Correct arguments order infer(source, headers)', UserWarning) source, headers = headers, source table = Table(sour...
def infer(source, headers=1, limit=100, confidence=0.75, **options)
https://github.com/frictionlessdata/tableschema-py#schema
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4.74698
0.997018
if self._key_path_segments is None: return False if search_depth < 0 or search_depth > self._number_of_key_path_segments: return False # Note that the root has no entry in the key path segments and # no name to match. if search_depth == 0: segment_name = '' else: s...
def _CheckKeyPath(self, registry_key, search_depth)
Checks the key path find specification. Args: registry_key (WinRegistryKey): Windows Registry key. search_depth (int): number of key path segments to compare. Returns: bool: True if the Windows Registry key matches the find specification, False if not.
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if self._key_path_segments is not None: if search_depth >= self._number_of_key_path_segments: return True return False
def AtMaximumDepth(self, search_depth)
Determines if the find specification is at maximum depth. Args: search_depth (int): number of key path segments to compare. Returns: bool: True if at maximum depth, False if not.
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if self._key_path_segments is None: key_path_match = None else: key_path_match = self._CheckKeyPath(registry_key, search_depth) if not key_path_match: return False, key_path_match if search_depth != self._number_of_key_path_segments: return False, key_path_match ...
def Matches(self, registry_key, search_depth)
Determines if the Windows Registry key matches the find specification. Args: registry_key (WinRegistryKey): Windows Registry key. search_depth (int): number of key path segments to compare. Returns: tuple: contains: bool: True if the Windows Registry key matches the find specificati...
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2.617879
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sub_find_specs = [] for find_spec in find_specs: match, key_path_match = find_spec.Matches(registry_key, search_depth) if match: yield registry_key.path # pylint: disable=singleton-comparison if key_path_match != False and not find_spec.AtMaximumDepth(search_depth): ...
def _FindInKey(self, registry_key, find_specs, search_depth)
Searches for matching keys within the Windows Registry key. Args: registry_key (WinRegistryKey): Windows Registry key. find_specs (list[FindSpec]): find specifications. search_depth (int): number of key path segments to compare. Yields: str: key path of a matching Windows Registry key.
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if not find_specs: find_specs = [FindSpec()] registry_key = self._win_registry.GetRootKey() for matching_path in self._FindInKey(registry_key, find_specs, 0): yield matching_path
def Find(self, find_specs=None)
Searches for matching keys within the Windows Registry. Args: find_specs (list[FindSpec]): find specifications. where None will return all allocated Windows Registry keys. Yields: str: key path of a matching Windows Registry key.
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root_key = self.GetRootKey() if root_key: for registry_key in root_key.RecurseKeys(): yield registry_key
def RecurseKeys(self)
Recurses the Windows Registry keys starting with the root key. Yields: WinRegistryKey: Windows Registry key.
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4.191793
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self._key_path_prefix = key_path_prefix self._key_path_prefix_length = len(key_path_prefix) self._key_path_prefix_upper = key_path_prefix.upper()
def SetKeyPathPrefix(self, key_path_prefix)
Sets the Window Registry key path prefix. Args: key_path_prefix (str): Windows Registry key path prefix.
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yield self for subkey in self.GetSubkeys(): for key in subkey.RecurseKeys(): yield key
def RecurseKeys(self)
Recurses the subkeys starting with the key. Yields: WinRegistryKey: Windows Registry key.
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return self.data_type in ( definitions.REG_DWORD, definitions.REG_DWORD_BIG_ENDIAN, definitions.REG_QWORD)
def DataIsInteger(self)
Determines, based on the data type, if the data is an integer. The data types considered strings are: REG_DWORD (REG_DWORD_LITTLE_ENDIAN), REG_DWORD_BIG_ENDIAN and REG_QWORD. Returns: bool: True if the data is an integer, False otherwise.
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if not key_path.startswith(definitions.KEY_PATH_SEPARATOR): raise ValueError('Key path does not start with: {0:s}'.format( definitions.KEY_PATH_SEPARATOR)) if not self._root_key: self._root_key = FakeWinRegistryKey(self._key_path_prefix) path_segments = key_paths.SplitKeyPath(ke...
def AddKeyByPath(self, key_path, registry_key)
Adds a Windows Registry key for a specific key path. Args: key_path (str): Windows Registry key path to add the key. registry_key (WinRegistryKey): Windows Registry key. Raises: KeyError: if the subkey already exists. ValueError: if the Windows Registry key cannot be added.
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2.344035
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key_path_upper = key_path.upper() if key_path_upper.startswith(self._key_path_prefix_upper): relative_key_path = key_path[self._key_path_prefix_length:] elif key_path.startswith(definitions.KEY_PATH_SEPARATOR): relative_key_path = key_path key_path = ''.join([self._key_path_prefix, ke...
def GetKeyByPath(self, key_path)
Retrieves the key for a specific path. Args: key_path (str): Windows Registry key path. Returns: WinRegistryKey: Windows Registry key or None if not available.
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2.345495
1.011257
if self._last_written_time is None: return dfdatetime_semantic_time.SemanticTime('Not set') return dfdatetime_filetime.Filetime(timestamp=self._last_written_time)
def last_written_time(self)
dfdatetime.DateTimeValues: last written time.
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2.411891
1.355078
if subkeys: for registry_key in subkeys: name = registry_key.name.upper() if name in self._subkeys: continue self._subkeys[name] = registry_key # pylint: disable=protected-access registry_key._key_path = key_paths.JoinKeyPath([ self._key_path...
def _BuildKeyHierarchy(self, subkeys, values)
Builds the Windows Registry key hierarchy. Args: subkeys (list[FakeWinRegistryKey]): list of subkeys. values (list[FakeWinRegistryValue]): list of values.
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2.363059
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name = registry_key.name.upper() if name in self._subkeys: raise KeyError( 'Subkey: {0:s} already exists.'.format(registry_key.name)) self._subkeys[name] = registry_key key_path = key_paths.JoinKeyPath([self._key_path, registry_key.name]) registry_key._key_path = key_path
def AddSubkey(self, registry_key)
Adds a subkey. Args: registry_key (WinRegistryKey): Windows Registry subkey. Raises: KeyError: if the subkey already exists.
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3.018591
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name = registry_value.name.upper() if name in self._values: raise KeyError( 'Value: {0:s} already exists.'.format(registry_value.name)) self._values[name] = registry_value
def AddValue(self, registry_value)
Adds a value. Args: registry_value (WinRegistryValue): Windows Registry value. Raises: KeyError: if the value already exists.
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3.271774
1.052946
subkeys = list(self._subkeys.values()) if index < 0 or index >= len(subkeys): raise IndexError('Index out of bounds.') return subkeys[index]
def GetSubkeyByIndex(self, index)
Retrieves a subkey by index. Args: index (int): index of the subkey. Returns: WinRegistryKey: Windows Registry subkey or None if not found. Raises: IndexError: if the index is out of bounds.
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5.06998
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subkey = self for path_segment in key_paths.SplitKeyPath(key_path): subkey = subkey.GetSubkeyByName(path_segment) if not subkey: break return subkey
def GetSubkeyByPath(self, key_path)
Retrieves a subkey by path. Args: key_path (str): path of the subkey. Returns: WinRegistryKey: Windows Registry subkey or None if not found.
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4.880693
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if not self._data: return None if self._data_type in self._STRING_VALUE_TYPES: try: return self._data.decode('utf-16-le') # AttributeError is raised when self._data has no decode method. except AttributeError as exception: raise errors.WinRegistryValueError(( ...
def GetDataAsObject(self)
Retrieves the data as an object. Returns: object: data as a Python type or None if not available. Raises: WinRegistryValueError: if the value data cannot be read.
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1.895385
1.047314
longest_key_path_prefix_upper = '' longest_key_path_prefix_length = len(longest_key_path_prefix_upper) for key_path_prefix_upper in self._registry_files: if key_path_upper.startswith(key_path_prefix_upper): key_path_prefix_length = len(key_path_prefix_upper) if key_path_prefix_len...
def _GetCachedFileByPath(self, key_path_upper)
Retrieves a cached Windows Registry file for a key path. Args: key_path_upper (str): Windows Registry key path, in upper case with a resolved root key alias. Returns: tuple: consist: str: key path prefix WinRegistryFile: corresponding Windows Registry file or None if not...
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1.678251
1.024636
select_key_path = 'HKEY_LOCAL_MACHINE\\System\\Select' select_key = self.GetKeyByPath(select_key_path) if not select_key: return None # To determine the current control set check: # 1. The "Current" value. # 2. The "Default" value. # 3. The "LastKnownGood" value. control_set ...
def _GetCurrentControlSet(self, key_path_suffix)
Virtual key callback to determine the current control set. Args: key_path_suffix (str): current control set Windows Registry key path suffix with leading path separator. Returns: WinRegistryKey: the current control set Windows Registry key or None if not available.
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2.422453
1.045184
user_key_name, _, key_path_suffix = key_path_suffix.partition( definitions.KEY_PATH_SEPARATOR) # HKEY_USERS\.DEFAULT is an alias for HKEY_USERS\S-1-5-18 which is # the Local System account. if user_key_name == '.DEFAULT': search_key_name = 'S-1-5-18' else: search_key_name =...
def _GetUsers(self, key_path_suffix)
Virtual key callback to determine the users sub keys. Args: key_path_suffix (str): users Windows Registry key path suffix with leading path separator. Returns: WinRegistryKey: the users Windows Registry key or None if not available.
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2.686841
1.001791
# TODO: handle HKEY_USERS in both 9X and NT. key_path_prefix, registry_file = self._GetCachedFileByPath(key_path_upper) if not registry_file: for mapping in self._GetFileMappingsByPath(key_path_upper): try: registry_file = self._OpenFile(mapping.windows_path) except IOE...
def _GetFileByPath(self, key_path_upper)
Retrieves a Windows Registry file for a specific path. Args: key_path_upper (str): Windows Registry key path, in upper case with a resolved root key alias. Returns: tuple: consists: str: upper case key path prefix WinRegistryFile: corresponding Windows Registry file or N...
4.053668
3.438808
1.1788
candidate_mappings = [] for mapping in self._REGISTRY_FILE_MAPPINGS_NT: if key_path_upper.startswith(mapping.key_path_prefix.upper()): candidate_mappings.append(mapping) # Sort the candidate mappings by longest (most specific) match first. candidate_mappings.sort( key=lambda ...
def _GetFileMappingsByPath(self, key_path_upper)
Retrieves the Windows Registry file mappings for a specific path. Args: key_path_upper (str): Windows Registry key path, in upper case with a resolved root key alias. Yields: WinRegistryFileMapping: Windows Registry file mapping.
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3.205891
1.019845
if not self._registry_file_reader: return None return self._registry_file_reader.Open( path, ascii_codepage=self._ascii_codepage)
def _OpenFile(self, path)
Opens a Windows Registry file. Args: path (str): path of the Windows Registry file. Returns: WinRegistryFile: Windows Registry file or None if not available.
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5.249054
1.122597
root_key_path, _, key_path = key_path.partition( definitions.KEY_PATH_SEPARATOR) # Resolve a root key alias. root_key_path = root_key_path.upper() root_key_path = self._ROOT_KEY_ALIASES.get(root_key_path, root_key_path) if root_key_path not in self._ROOT_KEYS: raise RuntimeError...
def GetKeyByPath(self, key_path)
Retrieves the key for a specific path. Args: key_path (str): Windows Registry key path. Returns: WinRegistryKey: Windows Registry key or None if not available. Raises: RuntimeError: if the root key is not supported.
2.223164
2.279402
0.975328
if not registry_file: return '' candidate_mappings = [] for mapping in self._REGISTRY_FILE_MAPPINGS_NT: if not mapping.unique_key_paths: continue # If all unique key paths are found consider the file to match. match = True for key_path in mapping.unique_key_paths...
def GetRegistryFileMapping(self, registry_file)
Determines the Registry file mapping based on the content of the file. Args: registry_file (WinRegistyFile): Windows Registry file. Returns: str: key path prefix or an empty string. Raises: RuntimeError: if there are multiple matching mappings and the correct mapping cannot be...
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2.328562
1.134437
root_registry_key = virtual.VirtualWinRegistryKey('') for mapped_key in self._MAPPED_KEYS: key_path_segments = key_paths.SplitKeyPath(mapped_key) if not key_path_segments: continue registry_key = root_registry_key for name in key_path_segments[:-1]: sub_registry_ke...
def GetRootKey(self)
Retrieves the Windows Registry root key. Returns: WinRegistryKey: Windows Registry root key. Raises: RuntimeError: if there are multiple matching mappings and the correct mapping cannot be resolved.
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2.349161
0.884954
self._registry_files[key_path_prefix.upper()] = registry_file registry_file.SetKeyPathPrefix(key_path_prefix)
def MapFile(self, key_path_prefix, registry_file)
Maps the Windows Registry file to a specific key path prefix. Args: key_path_prefix (str): key path prefix. registry_file (WinRegistryFile): Windows Registry file.
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4.517895
0.801989
key_path_upper = key_path.upper() if key_path_upper.startswith(self._key_path_prefix_upper): relative_key_path = key_path[self._key_path_prefix_length:] elif key_path.startswith(definitions.KEY_PATH_SEPARATOR): relative_key_path = key_path key_path = ''.join([self._key_path_prefix, ke...
def GetKeyByPath(self, key_path)
Retrieves the key for a specific path. Args: key_path (str): Windows Registry key path. Returns: WinRegistryKey: Registry key or None if not available.
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2.645877
1.045341
regf_key = self._regf_file.get_root_key() if not regf_key: return None return REGFWinRegistryKey(regf_key, key_path=self._key_path_prefix)
def GetRootKey(self)
Retrieves the root key. Returns: WinRegistryKey: Windows Registry root key or None if not available.
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4.620709
1.404316
self._file_object = file_object self._regf_file.open_file_object(self._file_object) return True
def Open(self, file_object)
Opens the Windows Registry file using a file-like object. Args: file_object (file): file-like object. Returns: bool: True if successful or False if not.
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6.253977
0.837421
timestamp = self._pyregf_key.get_last_written_time_as_integer() if timestamp == 0: return dfdatetime_semantic_time.SemanticTime('Not set') return dfdatetime_filetime.Filetime(timestamp=timestamp)
def last_written_time(self)
dfdatetime.DateTimeValues: last written time.
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3.008699
1.48825
if index < 0 or index >= self._pyregf_key.number_of_sub_keys: raise IndexError('Index out of bounds.') pyregf_key = self._pyregf_key.get_sub_key(index) if not pyregf_key: return None key_path = key_paths.JoinKeyPath([self._key_path, pyregf_key.name]) return REGFWinRegistryKey(pyre...
def GetSubkeyByIndex(self, index)
Retrieves a subkey by index. Args: index (int): index of the subkey. Returns: WinRegistryKey: Windows Registry subkey or None if not found. Raises: IndexError: if the index is out of bounds.
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2.981103
1.143817
pyregf_key = self._pyregf_key.get_sub_key_by_name(name) if not pyregf_key: return None key_path = key_paths.JoinKeyPath([self._key_path, pyregf_key.name]) return REGFWinRegistryKey(pyregf_key, key_path=key_path)
def GetSubkeyByName(self, name)
Retrieves a subkey by name. Args: name (str): name of the subkey. Returns: WinRegistryKey: Windows Registry subkey or None if not found.
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3.811141
1.119301
pyregf_key = self._pyregf_key.get_sub_key_by_path(key_path) if not pyregf_key: return None key_path = key_paths.JoinKeyPath([self._key_path, key_path]) return REGFWinRegistryKey(pyregf_key, key_path=key_path)
def GetSubkeyByPath(self, key_path)
Retrieves a subkey by path. Args: key_path (str): path of the subkey. Returns: WinRegistryKey: Windows Registry subkey or None if not found.
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3.845116
1.093712
for pyregf_key in self._pyregf_key.sub_keys: key_path = key_paths.JoinKeyPath([self._key_path, pyregf_key.name]) yield REGFWinRegistryKey(pyregf_key, key_path=key_path)
def GetSubkeys(self)
Retrieves all subkeys within the key. Yields: WinRegistryKey: Windows Registry subkey.
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4.020091
1.310878
pyregf_value = self._pyregf_key.get_value_by_name(name) if not pyregf_value: return None return REGFWinRegistryValue(pyregf_value)
def GetValueByName(self, name)
Retrieves a value by name. Value names are not unique and pyregf provides first match for the value. Args: name (str): name of the value or an empty string for the default value. Returns: WinRegistryValue: Windows Registry value if a corresponding value was found or None if not.
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3.996077
1.53434
try: return self._pyregf_value.data except IOError as exception: raise errors.WinRegistryValueError( 'Unable to read data from value: {0:s} with error: {1!s}'.format( self._pyregf_value.name, exception))
def data(self)
bytes: value data as a byte string. Raises: WinRegistryValueError: if the value data cannot be read.
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3.207673
1.390704
if self._pyregf_value.type in self._STRING_VALUE_TYPES: try: return self._pyregf_value.get_data_as_string() except IOError as exception: raise errors.WinRegistryValueError( 'Unable to read data from value: {0:s} with error: {1!s}'.format( self._pyregf_val...
def GetDataAsObject(self)
Retrieves the data as an object. Returns: object: data as a Python type. Raises: WinRegistryValueError: if the value data cannot be read.
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1.625185
1.052402
# This is an optimized way to combine the path segments into a single path # and combine multiple successive path separators to one. # Split all the path segments based on the path (segment) separator. path_segments = [ segment.split(definitions.KEY_PATH_SEPARATOR) for segment in path_segments] ...
def JoinKeyPath(path_segments)
Joins the path segments into key path. Args: path_segments (list[str]): Windows Registry key path segments. Returns: str: key path.
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3.379468
1.003891
# Split the path with the path separator and remove empty path segments. return list(filter(None, key_path.split(path_separator)))
def SplitKeyPath(key_path, path_separator=definitions.KEY_PATH_SEPARATOR)
Splits the key path into path segments. Args: key_path (str): key path. path_separator (Optional[str]): path separator. Returns: list[str]: key path segments without the root path segment, which is an empty string.
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7.903938
0.610598
if not self._registry_key and self._registry: self._GetKeyFromRegistry() if not self._registry_key: return None return self._registry_key.class_name
def class_name(self)
str: class name of the key or None if not available.
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4.648295
1.347816
if not self._registry_key and self._registry: self._GetKeyFromRegistry() if not self._registry_key: return None return self._registry_key.last_written_time
def last_written_time(self)
dfdatetime.DateTimeValues: last written time or None.
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3.901955
1.470927
if not self._registry_key and self._registry: self._GetKeyFromRegistry() return len(self._subkeys)
def number_of_subkeys(self)
int: number of subkeys within the key.
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9.97985
1.169505