block_compiler.py 文件源码

def _init_uninitialized(sess):
  """Initializes all uninitialized variables and returns them as a list."""
  variables = tf.global_variables()
  if not variables: return []  # sess.run() barfs on empty list
  is_initialized = sess.run([tf.is_variable_initialized(v) for v in variables])
  needs_init = [v for v, i in zip(variables, is_initialized) if not i]
  if not needs_init: return []
  sess.run(tf.variables_initializer(needs_init))
  return needs_init