Function _maybe_read_file

tensorboard/manager.py:511–526

Read the given file, if it exists. Args: filename: A path to a file. Returns: A string containing the file contents, or `None` if the file does not exist.

(filename)

def _maybe_read_file(filename):
    """Read the given file, if it exists.

    Args:
      filename: A path to a file.

    Returns:
      A string containing the file contents, or `None` if the file does
      not exist.
    """
    try:
        with open(filename) as infile:
            return infile.read()
    except IOError as e:
        if e.errno == errno.ENOENT:
            return None