Python gfile.Walk方法代碼示例

# 需要導入模塊: from tensorflow.python.platform import gfile [as 別名]
# 或者: from tensorflow.python.platform.gfile import Walk [as 別名]
def ListRecursively(top):
  """Walks a directory tree, yielding (dir_path, file_paths) tuples.

  For each of `top` and its subdirectories, yields a tuple containing the path
  to the directory and the path to each of the contained files.  Note that
  unlike os.Walk()/gfile.Walk(), this does not list subdirectories and the file
  paths are all absolute.

  If the directory does not exist, this yields nothing.

  Args:
    top: A path to a directory..
  Yields:
    A list of (dir_path, file_paths) tuples.
  """
  for dir_path, _, filenames in gfile.Walk(top):
    yield (dir_path, (os.path.join(dir_path, filename)
                      for filename in filenames)) 

# 需要導入模塊: from tensorflow.python.platform import gfile [as 別名]
# 或者: from tensorflow.python.platform.gfile import Walk [as 別名]
def _wav_files_and_labels():
    """Get wav files path and labels as a dict object.

    Args:
        None
    Returns:
        result = { label:wav_file_list }
    """
    if not util.is_exists(FLAGS.wavfile_parent_dir):
        tf.logging.error("Can not find wav files at: {}, or you can download one at "
            "https://serv.cusp.nyu.edu/projects/urbansounddataset.".format(
                FLAGS.wavfile_parent_dir))
        exit(1)
    wav_files = []
    wav_labels = []
    label_idx = 0
    sub_dirs = [x[0] for x in gfile.Walk(FLAGS.wavfile_parent_dir)]
    # The root directory comes first, so skip it.
    is_root_dir = True
    for sub_dir in sub_dirs:
        if is_root_dir:
            is_root_dir = False
            continue
        extensions = ['wav']
        file_list = []
        dir_name = os.path.basename(sub_dir)
        if dir_name == FLAGS.wavfile_parent_dir:
            continue
        if dir_name[0] == '.':
            continue
        tf.logging.info("Looking for wavs in '" + dir_name + "'")
        for extension in extensions:
            file_glob = os.path.join(FLAGS.wavfile_parent_dir, dir_name, '*.' + extension)
            file_list.extend(gfile.Glob(file_glob))
        if not file_list:
            tf.logging.warning('No files found')
            continue
        if len(file_list) < 20:
            tf.logging.warning('WARNING: Folder has less than 20 wavs,'
                'which may cause issues.')
        elif len(file_list) > MAX_NUM_PER_CLASS:
            tf.logging.warning(
                'WARNING: Folder {} has more than {} wavs. Some wavs will '
                'never be selected.'.format(dir_name, MAX_NUM_PER_CLASS))
        # label_name = re.sub(r'[^a-z0-9]+', ' ', dir_name.lower())
        wav_files.extend(file_list)
        wav_labels.extend([label_idx]*len(file_list))
        label_idx += 1
    assert len(wav_files) == len(wav_labels), \
        'Length of wav files and wav labels should be in consistent.'
    return wav_files, wav_labels 

# 需要導入模塊: from tensorflow.python.platform import gfile [as 別名]
# 或者: from tensorflow.python.platform.gfile import Walk [as 別名]
def _load_device_dumps(self, device_name, device_root):
    """Load `DebugTensorDatum` instances from the dump root of a given device.

    Populates a map {device_name: a list of `DebugTensorDatum`}, where the list
    is sorted by ascending timestamp.

    This sorting order reflects the order in which the TensorFlow executor
    processed the nodes of the graph. It is (one of many possible) topological
    sort of the nodes. This is useful for displaying tensors in the debugger
    frontend as well as for the use case in which the user wants to find a
    "culprit tensor", i.e., the first tensor in the graph that exhibits certain
    problematic properties, i.e., all zero values, or bad numerical values such
    as nan and inf.

    In addition, creates a map from node name to debug watches. In this Map,
    the key is the watched node name; the value is a dictionary.
    Of this dictionary, the key is the watched_output_slot.

    This method attempts to load the debug watches from the tensor dump files
    first, before loading the full set of debug watches from the partition
    graphs as done later. This is necessary because sometimes the partition
    graphs may not be available, e.g., when the run errors out.

    Args:
      device_name: (`str`) name of the device.
      device_root: (`str`) dump root directory of the given device.

    Raises:
      ValueError: If GraphDef for the device is not available.
    """

    self._dump_tensor_data[device_name] = []
    self._debug_watches[device_name] = collections.defaultdict(
        lambda: collections.defaultdict(set))

    for root, _, files in gfile.Walk(device_root):
      for f in files:
        if _is_graph_file(f):
          self._dump_graph_file_paths[device_name] = os.path.join(
              device_root, root, f)
        else:
          datum = self._dump_file_name_to_datum(root, f)
          self._dump_tensor_data[device_name].append(datum)
          self._debug_watches[device_name][datum.node_name][
              datum.output_slot].add(datum.debug_op)

    self._dump_tensor_data[device_name] = sorted(
        self._dump_tensor_data[device_name],
        key=lambda x: x.extended_timestamp)

    if self._dump_tensor_data[device_name]:
      self._t0s[device_name] = self._dump_tensor_data[device_name][0].timestamp
    else:
      self._t0s[device_name] = None