added try except loop for model

app.py

@@ -12,6 +12,9 @@ user_input:
 
 Returns:
     string: translated string of text
+
+try this : https://pypi.org/project/EasyNMT/
+and this : https://huggingface.co/IDEA-CCNL/Randeng-Deltalm-362M-En-Zh
 """
 from __future__ import annotations
 from typing import Iterable
@@ -61,11 +64,9 @@ class myTheme(Base):
         )
         super().set(
             body_background_fill="repeating-linear-gradient(135deg, *primary_800, *primary_800 10px, *primary_900 10px, *primary_900 20px)",
-            body_background_fill_dark="repeating-linear-gradient(135deg, *primary_800, *primary_800 10px, *primary_900 10px, *primary_900 20px)",
-            button_primary_background_fill="linear-gradient(45deg, *primary_300, *secondary_400)",
+            button_primary_background_fill="linear-gradient(90deg, *primary_600, *secondary_800)",
             button_primary_background_fill_hover="linear-gradient(45deg, *primary_200, *secondary_300)",
             button_primary_text_color="white",
-            button_primary_background_fill_dark="linear-gradient(90deg, *primary_600, *secondary_800)",
             slider_color="*secondary_300",
             slider_color_dark="*secondary_600",
             block_title_text_weight="600",
@@ -114,8 +115,11 @@ def opus_trans(article, target_language):
     if result_lang != target_lang:
         task_name = f"translation_{result_lang}_to_{target_lang}"
         model_name = f"Helsinki-NLP/opus-mt-{result_lang}-{target_lang}"
-        translator = pipeline(task_name, model=model_name, tokenizer=model_name)
-        translated = translator(article)[0]["translation_text"]
+        try:
+            translator = pipeline(task_name, model=model_name, tokenizer=model_name)
+            translated = translator(article)[0]["translation_text"]
+        except:
+            translated = "Error: Model doesn't exist"
     else:
         translated = "Error: You chose the same language as the article detected language. Please reselect language and try again."
     return translated