tf.executing_eagerly

Checks whether the current thread has eager execution enabled.

tf.executing_eagerly()

Eager execution is enabled by default and this API returns True in most of cases. However, this API might return False in the following use cases.

Executing inside tf.function, unless under tf.init_scope or tf.config.experimental_run_functions_eagerly(True) is previously called.
Executing inside a transformation function for tf.dataset.
tf.compat.v1.disable_eager_execution() is called.

General case:

print(tf.executing_eagerly())
True

Inside tf.function:

@tf.function
def fn():
  with tf.init_scope():
    print(tf.executing_eagerly())
  print(tf.executing_eagerly())
fn()
True
False

Inside tf.function after

tf.config.experimental_run_functions_eagerly(True) is called:

tf.config.experimental_run_functions_eagerly(True) @tf.function ... def fn(): ... with tf.init_scope(): ... print(tf.executing_eagerly()) ... print(tf.executing_eagerly()) fn() True True tf.config.experimental_run_functions_eagerly(False)

Inside a transformation function for tf.dataset:

def data_fn(x):
  print(tf.executing_eagerly())
  return x
dataset = tf.data.Dataset.range(100)
dataset = dataset.map(data_fn)
False

Returns
`True` if the current thread has eager execution enabled.

tf.executing_eagerly

General case:

Returns