save project

diy.py

 with open(r'c:\Users\eszcdr\Documents\lesson13-1\sales_list.txt','r',encoding='UTF_8')as file:
     a=file.readlines()
-file_sum=[]
 for i in a:
     date=i.split()
     sum=0
     #print(date[1:])
     for sales in date[1:]:
         sum=sum+int(sales)
-    b=date[0]+str(sum)+'\n'    
-    file_sum.append(b)
+    b=date[0]+str(sum)    
+    print(b)    
 
-with open(r'C:\Users\eszcdr\Desktop\new.txt','w',encoding='UTF-8')as file:
-    file.writelines(file_sum)