[Dy2St]Fix Regex DeprecationWarning in PY3 (#46829)

d8daf64e · Aurelius84 · GitHub · fdd0d6d0 · d8daf64e
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python/paddle/fluid/dygraph/dygraph_to_static/utils.py python/paddle/fluid/dygraph/dygraph_to_static/utils.py +1 -1

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--- a/python/paddle/fluid/dygraph/dygraph_to_static/utils.py
+++ b/python/paddle/fluid/dygraph/dygraph_to_static/utils.py
@@ -94,7 +94,7 @@ FOR_ITER_VAR_NAME_PREFIX = '__for_loop_iter_var'
 FOR_ITER_ZIP_TO_LIST_PREFIX = '__for_loop_iter_zip'
 RE_PYNAME = '[a-zA-Z0-9_]+'
-RE_PYMODULE = '[a-zA-Z0-9_]+\.'
+RE_PYMODULE = r'[a-zA-Z0-9_]+\.'
 # FullArgSpec is valid from Python3. Defined a Namedtuple to
 # to make it available in Python2.