Update app

app.py

@@ -28,9 +28,12 @@ def process(command):
                 split(command), encoding="utf8", stdout=-1, stderr=-1
             )  # sp.PIPE: -1
             out, err = proc.communicate()
+            sucess = True
         except Exception as e:
             out, err = "", str(e)
+            sucess = False
 
+    if sucess:
         out = "\n".join(
             (
                 out,
@@ -39,10 +42,9 @@ def process(command):
         ).strip()
         if not out:
             out = "No output, that's all we know."
-
         return out
 
-    # not is_command: text, do seg_text
+    # not is_command or not flag: text, do seg_text
     _ = "\n\n".join(seg_text(command.strip()))
     # _ = seg_text(command.strip())
     return cleandoc(