Update app.py

app.py

@@ -5,26 +5,29 @@ import time
 
 def generate_math_formula_image(formula_str, progress=gr.Progress()):
     try:
-        progress(0, desc="Formula yaratish jarayoni boshlandi. Bu biroz vaqt olishi mumkin. Iltimos ozgina kuting!!!")
-        time.sleep(1)
-        # Matematik formulani yaratish
-        formula = sp.sympify(formula_str)
-
-        # Formulani LaTeX formatida ifodalash
-        latex_formula = sp.latex(formula)
-
-        # Formulani rasmga aylantirish
-        fig = plt.figure(figsize=(6, 2))
-        plt.text(0.5, 0.5, r'$%s$' % latex_formula, fontsize=20, horizontalalignment='center', verticalalignment='center')
-        plt.axis('off')
-
-        # Rasmni saqlab olish
-        image_file = 'formula.png'
-        plt.savefig(image_file, dpi=300, bbox_inches='tight', pad_inches=0.1)
-        plt.close(fig)
-        for i in progress.tqdm(range(100)):
-            time.sleep(0.01)
-        return latex_formula, image_file
+        if formula_str is None:
+            return gr.Info("Kiritish maydoni bo'sh bo'lmasligi zarur %s" %formula_str), None
+        else:
+            progress(0, desc="Formula yaratish jarayoni boshlandi. Bu biroz vaqt olishi mumkin. Iltimos ozgina kuting!!!")
+            time.sleep(1)
+            # Matematik formulani yaratish
+            formula = sp.sympify(formula_str)
+    
+            # Formulani LaTeX formatida ifodalash
+            latex_formula = sp.latex(formula)
+    
+            # Formulani rasmga aylantirish
+            fig = plt.figure(figsize=(6, 2))
+            plt.text(0.5, 0.5, r'$%s$' % latex_formula, fontsize=20, horizontalalignment='center', verticalalignment='center')
+            plt.axis('off')
+    
+            # Rasmni saqlab olish
+            image_file = 'formula.png'
+            plt.savefig(image_file, dpi=300, bbox_inches='tight', pad_inches=0.1)
+            plt.close(fig)
+            for i in progress.tqdm(range(100)):
+                time.sleep(0.01)
+            return latex_formula, image_file
     except Exception as e:
         return str(e), None