Fix TensorFlow pip API generation

tensorflow/api_template.__init__.py

@@ -119,11 +119,11 @@ def _running_from_pip_package():
       _current_file_location.startswith(dir_) for dir_ in _site_packages_dirs)
 
 if _running_from_pip_package():
-  for s in _site_packages_dirs:
+  for _s in _site_packages_dirs:
     # TODO(gunan): Add sanity checks to loaded modules here.
-    plugin_dir = _os.path.join(s, 'tensorflow-plugins')
-    if _fi.file_exists(plugin_dir):
-      _ll.load_library(plugin_dir)
+    _plugin_dir = _os.path.join(_s, 'tensorflow-plugins')
+    if _fi.file_exists(_plugin_dir):
+      _ll.load_library(_plugin_dir)
 
 # Add module aliases
 if hasattr(_current_module, 'keras'):
@@ -136,3 +136,5 @@ if hasattr(_current_module, 'keras'):
   setattr(_current_module, "optimizers", optimizers)
   setattr(_current_module, "initializers", initializers)
 # pylint: enable=undefined-variable
+
+# __all__ PLACEHOLDER

tensorflow/api_template_v1.__init__.py

@@ -132,9 +132,10 @@ def _running_from_pip_package():
       _current_file_location.startswith(dir_) for dir_ in _site_packages_dirs)
 
 if _running_from_pip_package():
-  for s in _site_packages_dirs:
+  for _s in _site_packages_dirs:
     # TODO(gunan): Add sanity checks to loaded modules here.
-    plugin_dir = _os.path.join(s, 'tensorflow-plugins')
-    if _fi.file_exists(plugin_dir):
-      _ll.load_library(plugin_dir)
+    _plugin_dir = _os.path.join(_s, 'tensorflow-plugins')
+    if _fi.file_exists(_plugin_dir):
+      _ll.load_library(_plugin_dir)
 
+# __all__ PLACEHOLDER

tensorflow/python/tools/api/generator/create_python_api.py

@@ -243,11 +243,12 @@ class _ModuleInitCodeBuilder(object):
     # from it using * import. Don't need this for lazy_loading because the
     # underscore symbols are already included in __all__ when passed in and
     # handled by TFModuleWrapper.
+    root_module_footer = ''
     if not self._lazy_loading:
       underscore_names_str = ', '.join(
           '\'%s\'' % name for name in self._underscore_names_in_root)
 
-      module_text_map[''] = module_text_map.get('', '') + '''
+      root_module_footer = '''
 _names_with_underscore = [%s]
 __all__ = [_s for _s in dir() if not _s.startswith('_')]
 __all__.extend([_s for _s in _names_with_underscore])
@@ -273,7 +274,7 @@ __all__.extend([_s for _s in _names_with_underscore])
         footer_text_map[dest_module] = _DEPRECATION_FOOTER % (
             dest_module, public_apis_name, deprecation, has_lite)
 
-    return module_text_map, footer_text_map
+    return module_text_map, footer_text_map, root_module_footer
 
   def format_import(self, source_module_name, source_name, dest_name):
     """Formats import statement.
@@ -620,7 +621,11 @@ def create_api_files(output_files, packages, root_init_template, output_dir,
       os.makedirs(os.path.dirname(file_path))
     open(file_path, 'a').close()
 
-  module_text_map, deprecation_footer_map = get_api_init_text(
+  (
+      module_text_map,
+      deprecation_footer_map,
+      root_module_footer,
+  ) = get_api_init_text(
       packages, output_package, api_name,
       api_version, compat_api_versions, lazy_loading, use_relative_imports)
 
@@ -652,6 +657,7 @@ def create_api_files(output_files, packages, root_init_template, output_dir,
       with open(root_init_template, 'r') as root_init_template_file:
         contents = root_init_template_file.read()
         contents = contents.replace('# API IMPORTS PLACEHOLDER', text)
+        contents = contents.replace('# __all__ PLACEHOLDER', root_module_footer)
     elif module in compat_module_to_template:
       # Read base init file for compat module
       with open(compat_module_to_template[module], 'r') as init_template_file:

tensorflow/virtual_root_template_v1.__init__.py

@@ -132,7 +132,4 @@ try:
 except NameError:
   pass
 
-# Manually patch keras and estimator so tf.keras and tf.estimator work
-keras = _sys.modules["tensorflow.keras"]
-if not _root_estimator: estimator = _sys.modules["tensorflow.estimator"]
 # LINT.ThenChange(//tensorflow/virtual_root_template_v2.__init__.py.oss)

tensorflow/virtual_root_template_v2.__init__.py

@@ -126,14 +126,4 @@ try:
 except NameError:
   pass
 
-# TODO(mihaimaruseac): Revisit all of this once we release 2.1
-# Manually patch keras and estimator so tf.keras and tf.estimator work
-keras = _sys.modules["tensorflow.keras"]
-if not _root_estimator: estimator = _sys.modules["tensorflow.estimator"]
-# Also import module aliases
-try:
-  from tensorflow_core import losses, metrics, initializers, optimizers
-except ImportError:
-  pass
-
 # LINT.ThenChange(//tensorflow/virtual_root_template_v1.__init__.py.oss)