auto save

t.py

 with open(r'c:\Users\13570\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
     a=file.readlines()
     # print(a)
+list_sum=[]
 for i in a:
     data=i.split()
     sum=0
     for sales in data[1:]:
         sum=sum+int(sales)
-    print(data[0],sum)
+    r=data[0]+str(sum)+'\n'
+    list_sum.append(r)
+with open(r'C:\Users\13570\Desktop','a',encoding='utf-8')as file:
+    file.writelines(list_sum)
+    with open(r'c:\Users\13570\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
+    a=file.readlines()
+    # print(a)
+list_sum=[]
+for i in a:
+    data=i.split()
+    sum=0
+    for sales in data[1:]:
+        sum=sum+int(sales)
+    r=data[0]+str(sum)+'\n'
+    list_sum.append(r)
+with open(r'C:\Users\13570\Desktop','a',encoding='utf-8')as file:
+    file.writelines(list_sum)
+    
     
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