save project

diy.py

 with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
 with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','r',encoding='utf-8')as file:
-    a=file.read()
-    www_sum()
+    a=file.readlines()
+xxxx_sum=[]
 for i in a:
 for i in a:
+    data=i.split()
+    #print(data[1:])
+    sum=0
+    for w in data[1:]:
+        sum=sum+int(w)
+    x=data[0]+str(sum)+'\n'
+    xxxx_sum.append(x)
+
+with open(r'c:\Users\Administrator\Documents\lesson13-1\sales_list.txt','a',encoding='utf-8')as file:
+        file.writelines(xxxx_sum)