1 files changed, 0 insertions, 77 deletions
diff --git a/tensorflow/contrib/autograph/converters/list_comprehension.py b/tensorflow/contrib/autograph/converters/list_comprehension.py
deleted file mode 100644
index c4a13ee822..0000000000
--- a/tensorflow/contrib/autograph/converters/list_comprehension.py
+++ /dev/null
@@ -1,77 +0,0 @@
-# Copyright 2016 The TensorFlow Authors. All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-# ==============================================================================
-"""Canonicalizing list comprehensions into for and if statements.
-
-e.g.
-result = [x * x for x in xs]
-
-becomes
-
-result = []
-for x in xs:
-  elt = x * x
-  result.append(elt)
-"""
-
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
-import gast
-
-from tensorflow.contrib.autograph.core import converter
-from tensorflow.contrib.autograph.pyct import parser
-from tensorflow.contrib.autograph.pyct import templates
-
-
-class ListCompCanonicalizationTransformer(converter.Base):
-  """NodeTransformer to canonicalize list comprehensions."""
-
-  def make_update_list_node(self, list_, elt):
-    return templates.replace('list_.append(elt)', list_=list_, elt=elt)[0]
-
-  def instantiate_list_node(self):
-    return parser.parse_str('[]').body[0].value
-
-  def visit_Assign(self, node):
-    if not isinstance(node.value, gast.ListComp):
-      return node
-    if len(node.targets) > 1:
-      raise ValueError('Only support single assignment.')
-    return self.canonicalize_listcomp(node.targets[0], node.value)
-
-  def canonicalize_listcomp(self, result_node, list_comp_node):
-
-    make_list = templates.replace(
-        'list_ = create_list',
-        list_=result_node,
-        create_list=self.instantiate_list_node())
-    loop_body = self.make_update_list_node(result_node, list_comp_node.elt)
-
-    for gen in reversed(list_comp_node.generators):
-      for gen_if in reversed(gen.ifs):
-        loop_body = templates.replace(
-            'if test: loop_body', test=gen_if, loop_body=loop_body)
-      loop_body = templates.replace(
-          'for target in iter_: loop_body',
-          iter_=gen.iter,
-          target=gen.target,
-          loop_body=loop_body)
-
-    return make_list + loop_body
-
-
-def transform(node, ctx):
-  return ListCompCanonicalizationTransformer(ctx).visit(node)