Prepare 2.7.3 release
diff --git a/paddleocr.py b/paddleocr.py
index 0619300c88..8e4359df50 100644
--- a/paddleocr.py
+++ b/paddleocr.py
@@ -59,7 +59,7 @@ def _import_file(module_name, file_path, make_importable=False):
 ]
 
 SUPPORT_DET_MODEL = ['DB']
-VERSION = '2.7.2'
+VERSION = '2.7.3'
 SUPPORT_REC_MODEL = ['CRNN', 'SVTR_LCNet']
 BASE_DIR = os.path.expanduser("~/.paddleocr/")
 
diff --git a/ppocr/utils/utility.py b/ppocr/utils/utility.py
index 91b74f022d..05c92a8d0a 100755
--- a/ppocr/utils/utility.py
+++ b/ppocr/utils/utility.py
@@ -108,7 +108,8 @@ def check_and_read(img_path):
         return imgvalue, True, False
     elif os.path.basename(img_path)[-3:].lower() == 'pdf':
         from paddle.utils import try_import
-        try_import('fitz')
+
+        fitz = try_import("fitz")
         from PIL import Image
         imgs = []
         with fitz.open(img_path) as pdf:
diff --git a/ppstructure/pdf2word/pdf2word.py b/ppstructure/pdf2word/pdf2word.py
index d5d715ed66..2c21b661dd 100644
--- a/ppstructure/pdf2word/pdf2word.py
+++ b/ppstructure/pdf2word/pdf2word.py
@@ -21,9 +21,9 @@
 import cv2
 import platform
 import numpy as np
-import fitz
 from paddle.utils import try_import
-try_import('fitz')
+fitz = try_import("fitz")
+
 from PIL import Image
 from pdf2docx.converter import Converter
 from qtpy.QtWidgets import QApplication, QWidget, QPushButton, QProgressBar, \

cherry-pick #11820 and bump version to 2.7.3  