utils.py 文件源码

def get_uninitialized_variables(variables=None):
    """Return a list of uninitialized tf variables.

    Parameters
    ----------
    variables: tf.Variable, list(tf.Variable), optional
      Filter variable list to only those that are uninitialized. If no
      variables are specified the list of all variables in the graph
      will be used.

    Returns
    -------
    list(tf.Variable)
      List of uninitialized tf variables.
    """
    sess = tf.get_default_session()
    if variables is None:
        variables = tf.global_variables()
    else:
        variables = list(variables)

    if len(variables) == 0:
        return []

    if semver.match(tf.__version__, '<1.0.0'):
        init_flag = sess.run(
            tf.pack([tf.is_variable_initialized(v) for v in variables]))
    else:
        init_flag = sess.run(
            tf.stack([tf.is_variable_initialized(v) for v in variables]))

    return [v for v, f in zip(variables, init_flag) if not f]


# Tears of the debugging...