Update app.py

app.py

@@ -176,12 +176,12 @@ def summarize(inp,history,data=None,files=None):
         except Exception as e:
             data = "Error"
             print (e) 
-    if not data == "Error":
+    if data != "Error" and data != "":
         print(inp)
         out = str(data)
         rl = len(out)
         print(f'rl:: {rl}')
-        c=0
+        c=1
         for i in str(out):
             if i == " " or i=="," or i=="\n":
                 c +=1
@@ -189,7 +189,7 @@ def summarize(inp,history,data=None,files=None):
         
         rawp = compress_data(c,inp,out)    
     else:
-        rawp = "Error"
+        rawp = "Provide a valid data source"
     #print (rawp)
     #print (f'out:: {out}')
     #history += "observation: the search results are:\n {}\n".format(out)