save project

diy.py

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