save project

diy.py

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