From d883929274ec4f8beecc448f27070c5c7298a871 Mon Sep 17 00:00:00 2001
From: Jiangxinz <jiangxinz@foxmail.com>
Date: Mon, 19 Jul 2021 14:58:14 +0800
Subject: [PATCH] Fix Bug of Used before Assignment (#34090)

* fix used before assign

* fix used before assign
---
 python/paddle/fluid/tests/unittests/test_basic_lstm_api.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/python/paddle/fluid/tests/unittests/test_basic_lstm_api.py b/python/paddle/fluid/tests/unittests/test_basic_lstm_api.py
index 5383632838d..bedba672edf 100644
--- a/python/paddle/fluid/tests/unittests/test_basic_lstm_api.py
+++ b/python/paddle/fluid/tests/unittests/test_basic_lstm_api.py
@@ -68,13 +68,14 @@ def lstm_np(input,
 
         return new_hidden, new_cell
 
+    mask = None
+
     if batch_first:
         input = np.tranpose(input, [1, 0, 2])
         if mask is not None:
             mask = np.transpose(mask, [1, 0])
 
     batch_size = input.shape[1]
-    mask = None
     if sequence_length is not None:
         max_seq_len = input.shape[0]
 
-- 
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