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Gets an item's thumbnail and saves it to disk. Args: itemId (str): The item's ID. fileName (str): The name of the output image. fileName (str): The directory on disk where to save the thumbnail. Returns: dict: The result from :py:func:`arcrest.man...
def getThumbnailForItem(self, itemId, fileName, filePath): admin = None item = None try: admin = arcrest.manageorg.Administration(securityHandler=self._securityHandler) item = admin.content.getItem(itemId = itemId) return item.saveThumbnail(fileName=...
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Does the inverse of config parsing by taking parsed values and converting them back to a string representing config file contents. Args: default_flow_style: defines serialization format (see PyYAML docs)
def serialize(self, items, default_flow_style=False): # lazy-import so there's no dependency on yaml unless this class is used yaml = self._load_yaml() # it looks like ordering can't be preserved: http://pyyaml.org/ticket/29 items = dict(items) return yaml.dump(items, ...
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Write the given settings to output files. Args: parsed_namespace: namespace object created within parse_known_args() output_file_paths: any number of file paths to write the config to exit_after: whether to exit the program after writing the config files
def write_config_file(self, parsed_namespace, output_file_paths, exit_after=False): for output_file_path in output_file_paths: # validate the output file path try: with open(output_file_path, "w") as output_file: pass except IOErro...
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Compute a commandline arg key to be used for a config file setting that doesn't correspond to any defined configargparse arg (and so doesn't have a user-specified commandline arg key). Args: key: The config file key that was being set.
def get_command_line_key_for_unknown_config_file_setting(self, key): key_without_prefix_chars = key.strip(self.prefix_chars) command_line_key = self.prefix_chars[0]*2 + key_without_prefix_chars return command_line_key
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Converts the given settings back to a dictionary that can be passed to ConfigFormatParser.serialize(..). Args: source_to_settings: the dictionary described in parse_known_args() parsed_namespace: namespace object created within parse_known_args() Returns: an ...
def get_items_for_config_file_output(self, source_to_settings, parsed_namespace): config_file_items = OrderedDict() for source, settings in source_to_settings.items(): if source == _COMMAND_LINE_SOURCE_KEY: _, existing_command...
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Converts a config file or env var key + value to a list of commandline args to append to the commandline. Args: action: The argparse Action object for this setting, or None if this config file setting doesn't correspond to any defined configargparse arg. ...
def convert_item_to_command_line_arg(self, action, key, value): args = [] if action is None: command_line_key = \ self.get_command_line_key_for_unknown_config_file_setting(key) else: command_line_key = action.option_strings[-1] # handle ...
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Tries to parse config file path(s) from within command_line_args. Returns a list of opened config files, including files specified on the commandline as well as any default_config_files specified in the constructor that are present on disk. Args: command_line_args: List of a...
def _open_config_files(self, command_line_args): # open any default config files config_files = [open(f) for files in map(glob.glob, map(os.path.expanduser, self._default_config_files)) for f in files] # list actions with is_config_file_arg=True. Its possible th...
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Gets a parser. Args: segmenter (str): Segmenter to use. options (:obj:`dict`, optional): Optional settings. Returns: Parser (:obj:`budou.parser.Parser`) Raises: ValueError: If unsupported segmenter is specified.
def get_parser(segmenter, **options): if segmenter == 'nlapi': return NLAPIParser(**options) elif segmenter == 'mecab': return MecabParser() elif segmenter == 'tinysegmenter': return TinysegmenterParser() else: raise ValueError('Segmenter {} is not supported.'.format(segmenter))
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Parses attributes, Args: attributes (dict): Input attributes. classname (:obj:`str`, optional): Class name of output SPAN tags. Returns: Parsed attributes. (dict)
def parse_attributes(attributes=None, classname=None): if not attributes: attributes = {} attributes.setdefault('class', DEFAULT_CLASS_NAME) # If `classname` is specified, it overwrites `class` property in `attributes`. if classname: attributes['class'] = classname return attributes
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Removes unnecessary break lines and white spaces. Args: source (str): Input sentence. Returns: Preprocessed sentence. (str)
def preprocess(source): doc = html5lib.parseFragment(source) source = ET.tostring(doc, encoding='utf-8', method='text').decode('utf-8') source = source.replace(u'\n', u'').strip() source = re.sub(r'\s\s+', u' ', source) return source
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Returns a chunk list from the given sentence. Args: source (str): Source string to segment. language (:obj:`str`, optional): A language code. Returns: A chunk list. (:obj:`budou.chunk.ChunkList`) Raises: ValueError: If :obj:`language` is given and it is not included in ...
def segment(self, source, language=None): if language and not language in self.supported_languages: raise ValueError( 'Language {} is not supported by NLAPI segmenter'.format(language)) chunks = ChunkList() results = tinysegmenter.tokenize(source) seek = 0 for word in results: ...
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Returns a chunk list from the given sentence. Args: source (str): Source string to segment. language (:obj:`str`, optional): A language code. Returns: A chunk list. (:obj:`budou.chunk.ChunkList`) Raises: ValueError: If :obj:`language` is given and it is not included in ...
def segment(self, source, language=None): if language and not language in self.supported_languages: raise ValueError( 'Language {} is not supported by MeCab segmenter'.format(language)) chunks = ChunkList() seek = 0 source_str = source.encode('utf-8') if six.PY2 else source res...
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Gets a Natural Language API parser by authenticating the API. **This method is deprecated.** Please use :obj:`budou.get_parser` to obtain a parser instead. Args: json_path (:obj:`str`, optional): The file path to the service account's credentials. Returns: Parser. (:obj:`budou.parser.NLAPIPar...
def authenticate(json_path=None): msg = ('budou.authentication() is deprecated. ' 'Please use budou.get_parser() to obtain a parser instead.') warnings.warn(msg, DeprecationWarning) parser = get_parser('nlapi', credentials_path=json_path) return parser
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Returns a chunk list from the given sentence. Args: source (str): Source string to segment. language (:obj:`str`, optional): A language code. Returns: A chunk list. (:obj:`budou.chunk.ChunkList`) Raises: ValueError: If :obj:`language` is given and it is not included in ...
def segment(self, source, language=None): if language and not language in self.supported_languages: raise ValueError( 'Language {} is not supported by NLAPI segmenter'.format(language)) chunks, language = self._get_source_chunks(source, language=language) if self.use_entity: enti...
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Returns a chunk list retrieved from Syntax Analysis results. Args: input_text (str): Text to annotate. language (:obj:`str`, optional): Language of the text. Returns: A chunk list. (:obj:`budou.chunk.ChunkList`)
def _get_source_chunks(self, input_text, language=None): chunks = ChunkList() seek = 0 result = self._get_annotations(input_text, language=language) tokens = result['tokens'] language = result['language'] for i, token in enumerate(tokens): word = token['text']['content'] begin_o...
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Groups chunks by entities retrieved from NL API Entity Analysis. Args: chunks (:obj:`budou.chunk.ChunkList`): List of chunks to be processed. entities (:obj:`list` of :obj:`dict`): List of entities. Returns: A chunk list. (:obj:`budou.chunk.ChunkList`)
def _group_chunks_by_entities(self, chunks, entities): for entity in entities: chunks_to_concat = chunks.get_overlaps( entity['beginOffset'], len(entity['content'])) if not chunks_to_concat: continue new_chunk_word = u''.join([chunk.word for chunk in chunks_to_concat]) ...
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Returns the list of annotations retrieved from the given text. Args: text (str): Input text. language (:obj:`str`, optional): Language code. Returns: Results in a dictionary. :code:`tokens` contains the list of annotations and :code:`language` contains the inferred language from the in...
def _get_annotations(self, text, language=''): body = { 'document': { 'type': 'PLAIN_TEXT', 'content': text, }, 'features': { 'extract_syntax': True, }, 'encodingType': 'UTF32', } if language: body['document']['language']...
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Returns the list of entities retrieved from the given text. Args: text (str): Input text. language (:obj:`str`, optional): Language code. Returns: List of entities.
def _get_entities(self, text, language=''): body = { 'document': { 'type': 'PLAIN_TEXT', 'content': text, }, 'encodingType': 'UTF32', } if language: body['document']['language'] = language request = self.service.documents().analyzeEntities(body...
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Gets a value by a key. Args: key (str): Key to retrieve the value. Returns: Retrieved value.
def get(self, key): self._create_file_if_none_exists() with open(self.filename, 'rb') as file_object: cache_pickle = pickle.load(file_object) val = cache_pickle.get(key, None) return val
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Sets a value in a key. Args: key (str): Key for the value. val: Value to set. Returns: Retrieved value.
def set(self, key, val): self._create_file_if_none_exists() with open(self.filename, 'r+b') as file_object: cache_pickle = pickle.load(file_object) cache_pickle[key] = val file_object.seek(0) pickle.dump(cache_pickle, file_object)
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Returns chunks overlapped with the given range. Args: offset (int): Begin offset of the range. length (int): Length of the range. Returns: Overlapped chunks. (:obj:`budou.chunk.ChunkList`)
def get_overlaps(self, offset, length): # In case entity's offset points to a space just before the entity. if ''.join([chunk.word for chunk in self])[offset] == ' ': offset += 1 index = 0 result = ChunkList() for chunk in self: if offset < index + len(chunk.word) and index < offset...
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Swaps old consecutive chunks with new chunk. Args: old_chunks (:obj:`budou.chunk.ChunkList`): List of consecutive Chunks to be removed. new_chunk (:obj:`budou.chunk.Chunk`): A Chunk to be inserted.
def swap(self, old_chunks, new_chunk): indexes = [self.index(chunk) for chunk in old_chunks] del self[indexes[0]:indexes[-1] + 1] self.insert(indexes[0], new_chunk)
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Concatenates chunks based on each chunk's dependency. Args: direction (bool): Direction of concatenation process. True for forward.
def _concatenate_inner(self, direction): tmp_bucket = [] source_chunks = self if direction else self[::-1] target_chunks = ChunkList() for chunk in source_chunks: if ( # if the chunk has matched dependency, do concatenation. chunk.dependency == direction or # if ...
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Returns concatenated HTML code with SPAN tag. Args: attributes (dict): A map of name-value pairs for attributes of output SPAN tags. max_length (:obj:`int`, optional): Maximum length of span enclosed chunk. Returns: The organized HTML code. (str)
def html_serialize(self, attributes, max_length=None): doc = ET.Element('span') for chunk in self: if (chunk.has_cjk() and not (max_length and len(chunk.word) > max_length)): ele = ET.Element('span') ele.text = chunk.word for key, val in attributes.items(): ...
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Determines the encoding of a file based on byte order marks. Arguments: path (str): The path to the file. default (str, optional): The encoding to return if the byte-order-mark lookup does not return an answer. Returns: str: The encoding of the file.
def determine_encoding(path, default=None): byte_order_marks = ( ('utf-8-sig', (codecs.BOM_UTF8, )), ('utf-16', (codecs.BOM_UTF16_LE, codecs.BOM_UTF16_BE)), ('utf-32', (codecs.BOM_UTF32_LE, codecs.BOM_UTF32_BE)), ) try: with open(path, 'rb') as infile: raw =...
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Makes sure that a file was opened with some valid encoding. Arguments: fileobj (file): The file-object. mode (str, optional): The mode in which to re-open the file. fallback_encoding (str, optional): The encoding in which to re-open the file if it does not specify an encoding it...
def reopen_encoded(fileobj, mode='r', fallback_encoding=None): encoding = determine_encoding(fileobj.name, fallback_encoding) fileobj.close() return open(fileobj.name, mode, encoding=encoding)
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Remove lines that are part of the Project Gutenberg header or footer. Note: this function is a port of the C++ utility by Johannes Krugel. The original version of the code can be found at: http://www14.in.tum.de/spp1307/src/strip_headers.cpp Args: text (unicode): The body of the text to clean u...
def strip_headers(text): lines = text.splitlines() sep = str(os.linesep) out = [] i = 0 footer_found = False ignore_section = False for line in lines: reset = False if i <= 600: # Check if the header ends here if any(line.startswith(token) for ...
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r"""Returns the size of input dimension and output dimension, given `shape`. Args: shape: A list of integers. Returns: fan_in: An int. The value of input dimension. fan_out: An int. The value of output dimension.
def _get_fans(shape): r if len(shape) == 2: fan_in = shape[0] fan_out = shape[1] elif len(shape) == 4 or len(shape) == 5: # assuming convolution kernels (2D or 3D). kernel_size = np.prod(shape[:2]) fan_in = shape[-2] * kernel_size fan_out = shape[-1] * kernel_...
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r"""Decorates a function `func` as sg_producer_func. Args: func: A function to decorate.
def sg_producer_func(func): r @wraps(func) def wrapper(**kwargs): r # default option opt = tf.sg_opt(kwargs) + tf.sg_opt(dtypes=[tf.sg_floatx], capacity=32, num_threads=1) # source queue list check assert opt.source is not None, 'source is mandatory.' if typ...
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r"""Applies layer normalization. Normalizes the last dimension of the tensor `x`. Args: x: A `Tensor`. gamma: A constant `Tensor`. Scale parameter. Default is 1. beta: A constant `Tensor`. Offset parameter. Default is 0. Returns: A `Tensor` with the same shape as `x`.
def _ln_rnn(x, gamma, beta): r # calc layer mean, variance for final axis mean, variance = tf.nn.moments(x, axes=[len(x.get_shape()) - 1], keep_dims=True) # apply layer normalization x = (x - mean) / tf.sqrt(variance + tf.sg_eps) # apply parameter return gamma * x + beta
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r"""Casts a tensor to a new type. See `tf.cast()` in tensorflow. Args: tensor: A `Tensor` or `SparseTensor` (automatically given by chain). opt: dtype : The destination type. name : If provided, it replaces current tensor's name Returns: A `Tensor` or `SparseTensor` ...
def sg_cast(tensor, opt): r assert opt.dtype is not None, 'dtype is mandatory.' return tf.cast(tensor, opt.dtype, name=opt.name)
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r"""Casts a tensor to floatx. See `tf.cast()` in tensorflow. Args: tensor: A `Tensor` or `SparseTensor` (automatically given by chain). opt: name : If provided, it replaces current tensor's name Returns: A `Tensor` or `SparseTensor` with same shape as `tensor`.
def sg_float(tensor, opt): r return tf.cast(tensor, tf.sg_floatx, name=opt.name)
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r"""Casts a tensor to intx. See `tf.cast()` in tensorflow. Args: tensor: A `Tensor` or `SparseTensor` (automatically given by chain). opt: name: If provided, it replaces current tensor's name. Returns: A `Tensor` or `SparseTensor` with same shape as `tensor`.
def sg_int(tensor, opt): r return tf.cast(tensor, tf.sg_intx, name=opt.name)
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r"""Inserts a new axis. See tf.expand_dims() in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : Dimension to expand. Default is -1. name: If provided, it replaces current tensor's name. Returns: A `Tensor`.
def sg_expand_dims(tensor, opt): r opt += tf.sg_opt(axis=-1) return tf.expand_dims(tensor, opt.axis, name=opt.name)
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r"""Removes axis of size 1 from the shape of a tensor. See `tf.squeeze()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : A tuple/list of integers or an integer. axis to remove. Default is -1. name: If provided, it replaces cur...
def sg_squeeze(tensor, opt): r opt += tf.sg_opt(axis=[-1]) opt.axis = opt.axis if isinstance(opt.axis, (tuple, list)) else [opt.axis] return tf.squeeze(tensor, opt.axis, name=opt.name)
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r"""Reshapes a tensor to `batch_size x -1`. See `tf.reshape()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: name: If provided, it replaces current tensor's name. Returns: A 2-D tensor.
def sg_flatten(tensor, opt): r dim = np.prod(tensor.get_shape().as_list()[1:]) return tf.reshape(tensor, [-1, dim], name=opt.name)
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r"""Reshapes a tensor. See `tf.reshape()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: shape: A tuple/list of integers. The destination shape. name: If provided, replace current tensor's name. Returns: A `Tensor`.
def sg_reshape(tensor, opt): r assert opt.shape is not None, 'shape is mandatory.' return tf.reshape(tensor, opt.shape, name=opt.name)
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r"""Permutes the dimensions according to `opt.perm`. See `tf.transpose()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: perm: A permutation of the dimensions of `tensor`. The target shape. name: If provided, replace current tensor's name. Returns...
def sg_transpose(tensor, opt): r assert opt.perm is not None, 'perm is mandatory' return tf.transpose(tensor, opt.perm, name=opt.name)
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r"""Returns the indices of the maximum values along the specified axis. See `tf.argmax()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis: Target axis. Default is the last one. name: If provided, replace current tensor's name. Returns: ...
def sg_argmax(tensor, opt): r opt += tf.sg_opt(axis=tensor.get_shape().ndims-1) return tf.argmax(tensor, opt.axis, opt.name)
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r"""Returns the indices of the minimum values along the specified axis. See `tf.argin()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis: Target axis. Default is the last one. name: If provided, replace current tensor's name. Returns: A ...
def sg_argmin(tensor, opt): r opt += tf.sg_opt(axis=tensor.get_shape().ndims - 1) return tf.argmin(tensor, opt.axis, opt.name)
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r"""Concatenates tensors along a axis. See `tf.concat()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: target: A `Tensor`. Must have the same rank as `tensor`, and all dimensions except `opt.dim` must be equal. axis : Target axis. Default is...
def sg_concat(tensor, opt): r assert opt.target is not None, 'target is mandatory.' opt += tf.sg_opt(axis=tensor.get_shape().ndims-1) target = opt.target if isinstance(opt.target, (tuple, list)) else [opt.target] return tf.concat([tensor] + target, opt.axis, name=opt.name)
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r"""Converts a tensor into a one-hot tensor. See `tf.one_hot()` in tensorflow. Args: tensor: A `Tensor` ( automatically given by chain ) opt: depth: The number of classes. name: If provided, replace current tensor's name. Returns: A `Tensor`.
def sg_one_hot(tensor, opt): r assert opt.depth is not None, 'depth is mandatory.' return tf.one_hot(tensor, opt.depth, name=opt.name)
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r"""Converts a dense tensor into a sparse tensor. See `tf.SparseTensor()` in tensorflow. Args: tensor: A `Tensor` with zero-padding (automatically given by chain). opt: name: If provided, replace current tensor's name. Returns: A `SparseTensor`.
def sg_to_sparse(tensor, opt): r indices = tf.where(tf.not_equal(tensor.sg_float(), 0.)) return tf.SparseTensor(indices=indices, values=tf.gather_nd(tensor, indices) - 1, # for zero-based index dense_shape=tf.shape(tensor).sg_cast(dtype=tf.int64))
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r"""Log transform a dense tensor See `tf.log()` in tensorflow. Args: tensor: A `Tensor` ( automatically given by chain ) opt: name: If provided, replace current tensor's name. Returns: A `Tensor`.
def sg_log(tensor, opt): r return tf.log(tensor + tf.sg_eps, name=opt.name)
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r"""Computes the sum of elements across axis of a tensor. See `tf.reduce_sum()` in tensorflow. Args: tensor: A `Tensor` with zero-padding (automatically given by chain). opt: axis: A tuple/list of integers or an integer. The axis to reduce. keep_dims: If true, retains reduced d...
def sg_sum(tensor, opt): r return tf.reduce_sum(tensor, axis=opt.axis, keep_dims=opt.keep_dims, name=opt.name)
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r"""Computes the mean of elements across axis of a tensor. See `tf.reduce_mean()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : A tuple/list of integers or an integer. The axis to reduce. keep_dims: If true, retains reduced dimensions with ...
def sg_mean(tensor, opt): r return tf.reduce_mean(tensor, axis=opt.axis, keep_dims=opt.keep_dims, name=opt.name)
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r"""Computes the product of elements across axis of a tensor. See `tf.reduce_prod()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : A tuple/list of integers or an integer. The axis to reduce. keep_dims: If true, retains reduced dimensions with l...
def sg_prod(tensor, opt): r return tf.reduce_prod(tensor, axis=opt.axis, keep_dims=opt.keep_dims, name=opt.name)
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r"""Computes the minimum of elements across axis of a tensor. See `tf.reduce_min()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : A tuple/list of integers or an integer. The axis to reduce. keep_dims: If true, retains reduced dimensions with le...
def sg_min(tensor, opt): r return tf.reduce_min(tensor, axis=opt.axis, keep_dims=opt.keep_dims, name=opt.name)
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r"""Computes the maximum of elements across axis of a tensor. See `tf.reduce_max()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : A tuple/list of integers or an integer. The axis to reduce. keep_dims: If true, retains reduced dimensions with le...
def sg_max(tensor, opt): r return tf.reduce_max(tensor, axis=opt.axis, keep_dims=opt.keep_dims, name=opt.name)
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r"""Computes the "logical and" of elements across axis of a tensor. See `tf.reduce_all()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : A tuple/list of integers or an integer. The axis to reduce. keep_dims: If true, retains reduced dimensio...
def sg_all(tensor, opt): r return tf.reduce_all(tensor, axis=opt.axis, keep_dims=opt.keep_dims, name=opt.name)
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r"""Computes the "logical or" of elements across axis of a tensor. See `tf.reduce_any()` in tensorflow. Args: tensor: A `Tensor` (automatically given by chain). opt: axis : A tuple/list of integers or an integer. The axis to reduce. keep_dims: If true, retains reduced dimensions wi...
def sg_any(tensor, opt): r return tf.reduce_any(tensor, axis=opt.axis, keep_dims=opt.keep_dims, name=opt.name)
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r"""Looks up the `tensor`, which is the embedding matrix. Args: tensor: A tensor ( automatically given by chain ) opt: emb: A 2-D `Tensor`. An embedding matrix. name: If provided, replace current tensor's name. Returns: A `Tensor`.
def sg_lookup(tensor, opt): r assert opt.emb is not None, 'emb is mandatory.' return tf.nn.embedding_lookup(opt.emb, tensor, name=opt.name)
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r""" Periodic shuffle transformation for SubPixel CNN. (see [Shi et al. 2016](http://www.cv-foundation.org/openaccess/content_cvpr_2016/papers/Shi_Real-Time_Single_Image_CVPR_2016_paper.pdf) Args: tensor: A tensor (automatically given by chain). opt: factor: factor to multiply s...
def sg_periodic_shuffle(tensor, opt): r # default factor opt += tf.sg_opt(factor=2) # get current shape batch, row, col, channel = tensor.get_shape().as_list() # get target channel num channel_target = channel // (opt.factor * opt.factor) channel_factor = channel // channel_target ...
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r"""Returns accuracy of predictions. Args: tensor: A `Tensor`. Probability distributions or unscaled prediction scores. opt: target: A 'Tensor`. Labels. Returns: A `Tensor` of the same shape as `tensor`. Each value will be 1 if correct else 0. For example, ...
def sg_accuracy(tensor, opt): r assert opt.target is not None, 'target is mandatory.' opt += tf.sg_opt(k=1) # # calc accuracy out = tf.identity(tf.equal(tensor.sg_argmax(), tf.cast(opt.target, tf.int64)).sg_float(), name='acc') # out = tf.identity(tf.nn.in_top_k(tensor, opt.target, opt.k).sg_fl...
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r""" Decorates a function `func` so that it can be a sugar function. Sugar function can be used in a chainable manner. Args: func: function to decorate Returns: A sugar function.
def sg_sugar_func(func): r @wraps(func) def wrapper(tensor, **kwargs): # call sugar function out = func(tensor, tf.sg_opt(kwargs)) # save node info for reuse out._sugar = tf.sg_opt(func=func, arg=tf.sg_opt(kwargs)+sg_get_context(), prev=tensor) # inject reuse function...
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r"""Decorates a function `func` as a sg_layer function. Args: func: function to decorate
def sg_layer_func(func): r @wraps(func) def wrapper(tensor, **kwargs): r from . import sg_initializer as init from . import sg_activation # kwargs parsing opt = tf.sg_opt(kwargs) + sg_get_context() # set default argument try: shape = ten...
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r"""Decorates function as sg_rnn_layer functions. Args: func: function to decorate
def sg_rnn_layer_func(func): r @wraps(func) def wrapper(tensor, **kwargs): r # kwargs parsing opt = tf.sg_opt(kwargs) + sg_get_context() # set default argument try: shape = tensor.get_shape().as_list() # dropout off opt += tf.sg_o...
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r""" Reconstruct computational graph of `tensor` so all the parameters can be reused and replace its input tensor with `opt.input`. Args: tensor: A `Tensor` (automatically given by chaining). **opt: input: A `Tensor` that will replace the original input tensor. Returns: Reconstru...
def sg_reuse(tensor, **opt): r opt = tf.sg_opt(opt) assert hasattr(tensor, '_sugar'), 'cannot reuse this node.' assert opt.input is not None, 'input is mandatory.' # get all nodes in this graph nodes, prev = [tensor], tensor._sugar.prev while prev is not None: nodes = [prev] + nodes...
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r"""Creates a placeholder. Args: shape: A tuple/list of integers. If an integers is given, it will turn to a list. dtype: A data type. Default is float32. name: A name for the placeholder. Returns: A wrapped placeholder `Tensor`.
def sg_input(shape=None, dtype=sg_floatx, name=None): r if shape is None: return tf.placeholder(dtype, shape=None, name=name) else: if not isinstance(shape, (list, tuple)): shape = [shape] return tf.placeholder(dtype, shape=[None] + list(shape), name=name)
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r"""Converts all functions in the given Python module to sugar functions so that they can be used in a chainable manner. Args: path: A string. Path to the Python module mod_name: A string. The name of the Python module to inject. Returns: None
def sg_inject(path, mod_name): r # import module import sys if path not in list(sys.path): sys.path.append(path) globals()[mod_name] = importlib.import_module(mod_name) # find functions for func_name in dir(globals()[mod_name]): if isinstance(globals()[mod_name].__dict__.get(...
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r"""Context helper for queue routines. Args: sess: A session to open queues. If not specified, a new session is created. Returns: None
def sg_queue_context(sess=None): r # default session sess = tf.get_default_session() if sess is None else sess # thread coordinator coord = tf.train.Coordinator() try: # start queue thread threads = tf.train.start_queue_runners(sess, coord) yield finally: # ...
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r"""Decorates function as multiple gpu support towers. Args: func: function to decorate
def sg_parallel(func): r @wraps(func) def wrapper(**kwargs): r # parse option opt = tf.sg_opt(kwargs) # loop for all available GPUs res = [] for i in range(sg_gpus()): # specify device with tf.device('/gpu:%d' % i): # g...
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r"""Defines command line options Args: **kwargs: key: A name for the option. value : Default value or a tuple of (default value, description). Returns: None For example, ``` # Either of the following two lines will define `--n_epoch` command line argument and set its ...
def sg_arg_def(**kwargs): r for k, v in kwargs.items(): if type(v) is tuple or type(v) is list: v, c = v[0], v[1] else: c = k if type(v) is str: tf.app.flags.DEFINE_string(k, v, c) elif type(v) is int: tf.app.flags.DEFINE_integer(k,...
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r"""Register `tensor` to summary report as `loss` Args: tensor: A `Tensor` to log as loss prefix: A `string`. A prefix to display in the tensor board web UI. name: A `string`. A name to display in the tensor board web UI. Returns: None
def sg_summary_loss(tensor, prefix='losses', name=None): r # defaults prefix = '' if prefix is None else prefix + '/' # summary name name = prefix + _pretty_name(tensor) if name is None else prefix + name # summary statistics _scalar(name, tf.reduce_mean(tensor)) _histogram(name + '-h', ...
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r"""Register `tensor` to summary report as `gradient` Args: tensor: A `Tensor` to log as gradient gradient: A 0-D `Tensor`. A gradient to log prefix: A `string`. A prefix to display in the tensor board web UI. name: A `string`. A name to display in the tensor board web UI. Returns: ...
def sg_summary_gradient(tensor, gradient, prefix=None, name=None): r # defaults prefix = '' if prefix is None else prefix + '/' # summary name name = prefix + _pretty_name(tensor) if name is None else prefix + name # summary statistics # noinspection PyBroadException _scalar(name + '/gra...
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r"""Register `tensor` to summary report as `activation` Args: tensor: A `Tensor` to log as activation prefix: A `string`. A prefix to display in the tensor board web UI. name: A `string`. A name to display in the tensor board web UI. Returns: None
def sg_summary_activation(tensor, prefix=None, name=None): r # defaults prefix = '' if prefix is None else prefix + '/' # summary name name = prefix + _pretty_name(tensor) if name is None else prefix + name # summary statistics _scalar(name + '/ratio', tf.reduce_mean(tf.cast(tf.g...
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r"""Register `tensor` to summary report as `parameters` Args: tensor: A `Tensor` to log as parameters prefix: A `string`. A prefix to display in the tensor board web UI. name: A `string`. A name to display in the tensor board web UI. Returns: None
def sg_summary_param(tensor, prefix=None, name=None): r # defaults prefix = '' if prefix is None else prefix + '/' # summary name name = prefix + _pretty_name(tensor) if name is None else prefix + name # summary statistics _scalar(name + '/abs', tf.reduce_mean(tf.abs(tensor))) _histogram...
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r"""Register `tensor` to summary report as `image` Args: tensor: A tensor to log as image prefix: A `string`. A prefix to display in the tensor board web UI. name: A `string`. A name to display in the tensor board web UI. Returns: None
def sg_summary_image(tensor, prefix=None, name=None): r # defaults prefix = '' if prefix is None else prefix + '/' # summary name name = prefix + _pretty_name(tensor) if name is None else prefix + name # summary statistics if not tf.get_variable_scope().reuse: tf.summary.image(name +...
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r"""Register `tensor` to summary report as audio Args: tensor: A `Tensor` to log as audio sample_rate : An int. Sample rate to report. Default is 16000. prefix: A `string`. A prefix to display in the tensor board web UI. name: A `string`. A name to display in the tensor board web UI. R...
def sg_summary_audio(tensor, sample_rate=16000, prefix=None, name=None): r # defaults prefix = '' if prefix is None else prefix + '/' # summary name name = prefix + _pretty_name(tensor) if name is None else prefix + name # summary statistics if not tf.get_variable_scope().reuse: tf.s...
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r""""See [Xu, et al. 2015](https://arxiv.org/pdf/1505.00853v2.pdf) Args: x: A tensor opt: name: A name for the operation (optional). Returns: A `Tensor` with the same type and shape as `x`.
def sg_leaky_relu(x, opt): r return tf.where(tf.greater(x, 0), x, 0.01 * x, name=opt.name)
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r""" Initializes session variables. Args: sess: Session to initialize.
def sg_init(sess): r # initialize variables sess.run(tf.group(tf.global_variables_initializer(), tf.local_variables_initializer()))
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r""" Restores previously saved variables. Args: sess: A `Session` to use to restore the parameters. save_path: Path where parameters were previously saved. category: A `String` to filter variables starts with given category. Returns:
def sg_restore(sess, save_path, category=''): r # to list if not isinstance(category, (tuple, list)): category = [category] # make variable list to load var_list = {} for cat in category: for t in tf.global_variables(): if t.name.startswith(cat): var_...
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r""" Decorates a function `func` as sg_train_func. Args: func: A function to decorate
def sg_train_func(func): r @wraps(func) def wrapper(**kwargs): r opt = tf.sg_opt(kwargs) # default training options opt += tf.sg_opt(lr=0.001, save_dir='asset/train', max_ep=1000, ep_size=100000, save...
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r""" Get regularizer losss Args: scale: A scalar. A weight applied to regularizer loss
def sg_regularizer_loss(scale=1.0): r return scale * tf.reduce_mean(tf.get_collection(tf.GraphKeys.REGULARIZATION_LOSSES))
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r"""Returns batch queues from the whole data. Args: data_list: A list of ndarrays. Every array must have the same size in the first dimension. batch_size: An integer. name: A name for the operations (optional). Returns: A list of tensors of `batch_size`.
def _data_to_tensor(data_list, batch_size, name=None): r # convert to constant tensor const_list = [tf.constant(data) for data in data_list] # create queue from constant tensor queue_list = tf.train.slice_input_producer(const_list, capacity=batch_size*128, name=name) # create batch queue r...
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Example process for testing. Inputs: ------- file1 raster file Parameters: ----------- Output: ------- np.ndarray
def execute(mp): # Reading and writing data works like this: with mp.open("file1", resampling="bilinear") as raster_file: if raster_file.is_empty(): return "empty" # This assures a transparent tile instead of a pink error tile # is returned when using mapchete se...
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Read, stretch and return raster data. Inputs: ------- raster raster file Parameters: ----------- resampling : str rasterio.Resampling method scale_method : str - dtype_scale: use dtype minimum and maximum values - minmax_scale: use dataset bands minimum and ...
def execute( mp, resampling="nearest", scale_method=None, scales_minmax=None ): with mp.open("raster", resampling=resampling) as raster_file: # exit if input tile is empty if raster_file.is_empty(): return "empty" # actually read data and iterate through ba...
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Read a window of an input vector dataset. Also clips geometry. Parameters: ----------- input_file : string path to vector file tile : ``Tile`` tile extent to read data from validity_check : bool checks if reprojected geometry is valid and throws ``RuntimeError`` if ...
def read_vector_window(input_files, tile, validity_check=True): if not isinstance(input_files, list): input_files = [input_files] return [ feature for feature in chain.from_iterable([ _read_vector_window(path, tile, validity_check=validity_check) for path in ...
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Yield single part geometries if geom is multipart, otherwise yield geom. Parameters: ----------- geom : shapely geometry Returns: -------- shapely single part geometries
def multipart_to_singleparts(geom): if isinstance(geom, base.BaseGeometry): if hasattr(geom, "geoms"): for subgeom in geom: yield subgeom else: yield geom
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Check if file exists either remote or local. Parameters: ----------- path : path to file Returns: -------- exists : bool
def path_exists(path): if path.startswith(("http://", "https://")): try: urlopen(path).info() return True except HTTPError as e: if e.code == 404: return False else: raise elif path.startswith("s3://"): ...
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Return absolute path if path is local. Parameters: ----------- path : path to file base_dir : base directory used for absolute path Returns: -------- absolute path
def absolute_path(path=None, base_dir=None): if path_is_remote(path): return path else: if os.path.isabs(path): return path else: if base_dir is None or not os.path.isabs(base_dir): raise TypeError("base_dir must be an absolute path.") ...
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Return relative path if path is local. Parameters: ----------- path : path to file base_dir : directory where path sould be relative to Returns: -------- relative path
def relative_path(path=None, base_dir=None): if path_is_remote(path) or not os.path.isabs(path): return path else: return os.path.relpath(path, base_dir)
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Lists all of the files in the given base directory, optionally only including whose extension(s) match the ext string/list of strings. This is non-recursive. Args: base_path: The directory in which to search. ext: The extension(s) to match in the given directory. If None, this m...
def list_files(base_path, ext=None): if not os.path.isdir(base_path): raise ValueError("Path does not exist: %s" % base_path) files = [] for entry in os.listdir(base_path): if os.path.isfile(os.path.join(base_path, entry)): _, entry_ext = os.path.splitext(entry) ...
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Strips whitespace from the string values of the given dictionary (recursively). Args: d: A dictionary object. Returns: A new dictionary object, whose string values' whitespace has been stripped out.
def dict_strip(d): _d = deepcopy(d) for k, v in iteritems(d): if isinstance(v, str): _d[k] = v.strip() elif isinstance(v, dict): _d[k] = dict_strip(v) return _d
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Recursively strips the plain text out of the given XML etree element up to the desired depth. Args: el: The etree element to scan. max_depth: The depth to which to recursively strip text (default: 0). cur_depth: The current recursive depth to which we've scanned so far. Returns: ...
def strip_el_text(el, max_depth=0, cur_depth=0): # text in front of any child elements el_text = strip_str(el.text if el.text is not None else "") if cur_depth < max_depth: for child in el: el_text += " "+strip_el_text(child, max_depth=max_depth, cur_depth=cur_depth+1) else: ...
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Runs through the array and returns the elements that contain more than one duplicate Args: array: The array to check for duplicates. Returns: Array of the elements that are duplicates. Returns empty list if there are no duplicates.
def find_duplicates_in_array(array): duplicates = [] non_duplicates = [] if len(array) != len(set(array)): for item in array: if item not in non_duplicates: non_duplicates.append(item) elif item in non_duplicates and item not in duplicates: ...
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Constructor. Args: message: An optional message to override the predefined error message. orig_exc: The original exception from which this error was generated. context: An optional ErrorContext instance to provide additional information during error rendering...
def __init__(self, message=None, orig_exc=None, context=None): self.orig_exc = orig_exc if message is not None: self.error_message = message elif orig_exc is not None: # derive the error message from the original exception self.error_message = "%s" % ...
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Constructor. Args: data_path: The full path to where the database files can be found. models: Loaded model/field data. encoding: The encoding to load files as ('utf-8', etc). If 'None', will default to the system-preferred default encoding. ...
def __init__(self, data_path, models, encoding=None, markdown_config=None, error_context=None): self.encoding = encoding self.tables = dict() self.data_path = data_path self.models = models self.markdown_config = markdown_config self.error_context = e...
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Creates the table for the given model. Args: model: A StatikModel instance. Returns: A SQLAlchemy model instance for the table corresponding to this particular model.
def create_model_table(self, model): try: return db_model_factory(self.Base, model, self.models) except Exception as exc: raise ModelError( model.name, message="failed to create in-memory table.", orig_exc=exc, ...
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Constructor. Args: path: The full filesystem path to the base of the project.
def __init__(self, path, **kwargs): self.error_context = kwargs.pop('error_context', None) self.error_context = self.error_context or StatikErrorContext() if 'config' in kwargs and isinstance(kwargs['config'], dict): logger.debug("Loading project configuration from construc...
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Recursively dumps the result of our processing into files within the given output path. Args: result: The in-memory result of our processing. output_path: Full path to the folder into which to dump the files. Returns: The number of files generated (integer).
def dump_in_memory_result(self, result, output_path): file_count = 0 logger.debug("Dumping in-memory processing results to output folder: %s", output_path) for k, v in iteritems(result): cur_output_path = os.path.join(output_path, k) if isinstance(v, dict): ...
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Constructor. Args: project: The project to which this template engine relates.
def __init__(self, project, error_context=None): self.project = project self.error_context = error_context or StatikErrorContext() self.supported_providers = project.config.template_providers if project.safe_mode: self.supported_providers = [provider for provider in ...
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Attempts to load the relevant template from our templating system/environment. Args: name: The name of the template to load. Return: On success, a StatikTemplate object that can be used to render content.
def load_template(self, name): # hopefully speeds up loading of templates a little, especially when loaded multiple times if name in self.cached_templates: logger.debug("Using cached template: %s", name) return self.cached_templates[name] logger.debug("Attemptin...
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Creates a template from the given string based on the specified provider or the provider with highest precedence. Args: s: The string to convert to a template. provider_name: The name of the provider to use to create the template.
def create_template(self, s, provider_name=None): if provider_name is None: provider_name = self.supported_providers[0] return template_exception_handler( lambda: self.get_provider(provider_name).create_template(s), self.error_context )
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Constructor. Args: engine: The StatikTemplateEngine to which this template provider belongs.
def __init__(self, engine): super(StatikJinjaTemplateProvider, self).__init__(engine) project = engine.project logger.debug("Instantiating Jinja2 template provider") # now load our template tags self.templatetags_path = os.path.join(project.path, project.TEMPLATETAGS_D...
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Constructor. Args: provider: The provider that created this template. template: The Jinja2 template to wrap.
def __init__(self, provider, template, **kwargs): super(StatikJinjaTemplate, self).__init__(template.filename, **kwargs) self.provider = provider self.template = template
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Helper function to build a field from the given field name and type. Args: model_name: The name of the model for which we're building this field. field_name: The name of the field to build. field_type: A string indicator as to which field type must be built. all_models: A list c...
def construct_field(model_name, field_name, field_type, all_models, **kwargs): field_type_parts = field_type.split('->') _field_type = field_type_parts[0].strip().split('[]')[0].strip() back_populates = field_type_parts[1].strip() if len(field_type_parts) > 1 else None error_context = kwargs.pop('e...
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Instantiates a Paginator instance for database queries. Args: db_query: The SQLAlchemy database query to paginate. items_per_page: The desired number of items per page. offset: The number of items to skip when paginating. start_page: The number of the first page when reporting on pa...
def paginate(db_query, items_per_page, offset=0, start_page=1): return Paginator(db_query, items_per_page, offset=offset, start_page=start_page)
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Constructor. Args: paginator: The parent paginator object. number: The number of this page (starting from 1). items: A list of items to belong to this page.
def __init__(self, paginator, number, items): self.paginator = paginator self.number = number self.number0 = number - 1 # for zero-indexed pagination self.items = items self.count = len(items) # copy the paginator variables self.total_items = paginator...
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Constructor. Args: db_query: The database query to execute.
def __init__(self, db_query, items_per_page, offset=0, start_page=1): self.db_query = db_query self.items_per_page = items_per_page self.offset = offset self.start_page = start_page self.total_items = db_query.count() - offset self.total_pages = int(math.ceil(fl...
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