[Dy2St] replace deprecated load_module with exec_module (PaddlePa…

…ddle#48679)

python/paddle/jit/dy2static/utils.py

@@ -18,6 +18,7 @@
 import copy
 from paddle.utils import gast
 import inspect
+import importlib.util
 import os
 import sys
 import shutil
@@ -32,6 +33,7 @@
 from paddle.fluid.layer_helper import LayerHelper
 from paddle.fluid.layers import assign
 from functools import reduce
+from importlib.machinery import SourceFileLoader
 import warnings
 
 
@@ -71,9 +73,6 @@ def visit(self, node):
         return ret
 
 
-# imp is deprecated in python3
-from importlib.machinery import SourceFileLoader
-
 dygraph_class_to_static_api = {
     "CosineDecay": "cosine_decay",
     "ExponentialDecay": "exponential_decay",
@@ -586,7 +585,10 @@ def func_prefix(func):
         DEL_TEMP_DIR = False
 
     func_name = dyfunc.__name__
-    module = SourceFileLoader(module_name, f.name).load_module()
+    loader = SourceFileLoader(module_name, f.name)
+    spec = importlib.util.spec_from_loader(loader.name, loader)
+    module = importlib.util.module_from_spec(spec)
+    loader.exec_module(module)
     # The 'forward' or 'another_forward' of 'TranslatedLayer' cannot be obtained
     # through 'func_name'. So set the special function name '__i_m_p_l__'.
     if hasattr(module, '__i_m_p_l__'):

python/paddle/utils/cpp_extension/extension_utils.py

@@ -16,6 +16,7 @@
 import collections
 import glob
 import hashlib
+import importlib.util
 import json
 import logging
 import os
@@ -1070,7 +1071,9 @@ def _load_module_from_file(api_file_path, module_name, verbose=False):
 
     # load module with RWLock
     loader = machinery.SourceFileLoader(ext_name, api_file_path)
-    module = loader.load_module()
+    spec = importlib.util.spec_from_loader(loader.name, loader)
+    module = importlib.util.module_from_spec(spec)
+    loader.exec_module(module)
 
     return module