12月23-24日

# tensorflow/python/client/session.py
class Session(BaseSession):  def __init__(self, target='', graph=None, config=None):    super(Session, self).__init__(target, graph, config=config)
   # ignoring others

# tensorflow/python/client/session.py
from tensorflow.python import pywrap_tensorflow as tf_session
class BaseSession(SessionInterface):  def __init__(self, target='', graph=None, config=None):    self._session = None    opts = tf_session.TF_NewSessionOptions(target=self._target, config=config)
   try:
     with errors.raise_exception_on_not_ok_status() as status:        self._session = tf_session.TF_NewDeprecatedSession(opts, status)
   finally:      tf_session.TF_DeleteSessionOptions(opts)

# ignoring others

# tensorflow/bazel-bin/tensorflow/python/pywrap_tensorflow.py

def TF_NewDeprecatedSession(arg1, status):

return _pywrap_tensorflow.TF_NewDeprecatedSession(arg1, status)

// tensorflow/bazel-bin/tensorflow/python/pywrap_tensorflow.cpp
static PyMethodDef SwigMethods[] = {    ...     {"TF_NewDeprecatedSession", _wrap_TF_NewDeprecatedSession, METH_VARARGS, NULL}, } PyObject *_wrap_TF_NewDeprecatedSession(  PyObject *self, PyObject *args) {  TF_SessionOptions* arg1 = ...  TF_Status* arg2 = ...  TF_DeprecatedSession* result = TF_NewDeprecatedSession(arg1, arg2);
 // ignoring others implements

}

// tensorflow/c/c_api.c
TF_DeprecatedSession* TF_NewDeprecatedSession(
 const TF_SessionOptions*, TF_Status* status) {  Session* session;  status->status = NewSession(opt->options, &session);
   if (status->status.ok()) {
       return new TF_DeprecatedSession({session});  } else {
   return NULL;  } }