Update app.py

app.py

@@ -14,22 +14,24 @@ os.system('pip install git+https://github.com/myhloli/Magic-PDF.git@dev')
 
 os.system('mineru-models-download -s huggingface -m all')
 
-with open('/home/user/mineru.json', 'r') as file:
+try:
+    with open('/home/user/mineru.json', 'r+') as file:
     config = json.load(file)
-
-delimiters = {
-    'display': {'left': '\\[', 'right': '\\]'},
-    'inline': {'left': '\\(', 'right': '\\)'}
-}
-
-config['latex-delimiter-config'] = delimiters
-
-if os.getenv('apikey'):
-    config['llm-aided-config']['title_aided']['api_key'] = os.getenv('apikey')
-    config['llm-aided-config']['title_aided']['enable'] = True
-
-with open('/home/user/mineru.json', 'w') as file:
-    json.dump(config, file, indent=4)
+    
+    delimiters = {
+        'display': {'left': '\\[', 'right': '\\]'},
+        'inline': {'left': '\\(', 'right': '\\)'}
+    }
+    
+    config['latex-delimiter-config'] = delimiters
+    
+    if os.getenv('apikey'):
+        config['llm-aided-config']['title_aided']['api_key'] = os.getenv('apikey')
+        config['llm-aided-config']['title_aided']['enable'] = True
+    
+    file.seek(0)  # 将文件指针移回文件开始位置
+    file.truncate()  # 截断文件，清除原有内容
+    json.dump(config, file, indent=4)  # 写入新内容
 
 from gradio_pdf import PDF
 import gradio as gr