tfdbg.LocalCLIDebugWrapperSession

class tfdbg.LocalCLIDebugWrapperSession

See the guide: TensorFlow Debugger > Session wrapper class and SessionRunHook implementations

Concrete subclass of BaseDebugWrapperSession implementing a local CLI.

This class has all the methods that a session.Session object has, in order to support debugging with minimal code changes. Invoking its run() method will launch the command-line interface (CLI) of tfdbg.

Properties

graph

sess_str

session

Methods

__init__(sess, dump_root=None, log_usage=True, ui_type='curses')

Constructor of LocalCLIDebugWrapperSession.

Args:

• sess: The TensorFlow Session object being wrapped.
• dump_root: (str) optional path to the dump root directory. Must be a directory that does not exist or an empty directory. If the directory does not exist, it will be created by the debugger core during debug run() calls and removed afterwards.
• log_usage: (bool) whether the usage of this class is to be logged.
• ui_type: (str) requested UI type. Currently supported: (curses | readline)

Raises:

• ValueError: If dump_root is an existing and non-empty directory or if dump_root is a file.

add_tensor_filter(filter_name, tensor_filter)

Add a tensor filter.

Args:

• filter_name: (str) name of the filter.
• tensor_filter: (callable) the filter callable. See the doc string of DebugDumpDir.find() for more details about its signature.

close()

invoke_node_stepper(node_stepper, restore_variable_values_on_exit=True)

Overrides method in base class to implement interactive node stepper.

Args:

• node_stepper: (stepper.NodeStepper) The underlying NodeStepper API object.
• restore_variable_values_on_exit: (bool) Whether any variables whose values have been altered during this node-stepper invocation should be restored to their old values when this invocation ends.

Returns:

The same return values as the Session.run() call on the same fetches as the NodeStepper.

on_run_end(request)

Overrides on-run-end callback.

Actions taken: 1) Load the debug dump. 2) Bring up the Analyzer CLI.

Args:

• request: An instance of OnSessionInitRequest.

Returns:

An instance of OnSessionInitResponse.

on_run_start(request)

Overrides on-run-start callback.

Invoke the CLI to let user choose what action to take: run / invoke_stepper.

Args:

• request: An instance of OnSessionInitRequest.

Returns:

An instance of OnSessionInitResponse.

Raises:

• RuntimeError: If user chooses to prematurely exit the debugger.

on_session_init(request)

Overrides on-session-init callback.

Args:

• request: An instance of OnSessionInitRequest.

Returns:

An instance of OnSessionInitResponse.

partial_run(handle, fetches, feed_dict=None)

partial_run_setup(fetches, feeds=None)

Sets up the feeds and fetches for partial runs in the session.

run(fetches, feed_dict=None, options=None, run_metadata=None)

Wrapper around Session.run() that inserts tensor watch options.

Args:

• fetches: Same as the fetches arg to regular Session.run().
• feed_dict: Same as the feed_dict arg to regular Session.run().
• options: Same as the options arg to regular Session.run().
• run_metadata: Same as the run_metadata arg to regular Session.run().

Returns:

Simply forwards the output of the wrapped Session.run() call.

Raises:

• ValueError: On invalid OnRunStartAction value.

Defined in tensorflow/python/debug/wrappers/local_cli_wrapper.py.