save project

diy.py

 with open(r'c:\Users\lenovo\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
 with open(r'c:\Users\lenovo\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
     a=file.readlines()
     a=file.readlines()
     #print(a)
     #print(a)
+list_sum=[]
 for i in a:
 for i in a:
     data=i.split()
     data=i.split()
     sum=0
     sum=0
     for sales in data[1:]:
     for sales in data[1:]:
         sum=sum+int(sales)
         sum=sum+int(sales)
-    print(data[0],sum)
+    r=data[0]+str(sum)+'\n'
\ No newline at end of file
+    list_sum.append(r)
+with open(r'c:\Users\lenovo\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8') as file:
+    file.writelines(list_sum)
\ No newline at end of file