Shows every single letter in my console

https://www.codecademy.com/paths/computer-science/tracks/cspath-python-objects/modules/cspath-python-strings/projects/thread-shed

it keeps showing error and now it shows stupid every single letter in my console when I try to run these code

Please post your raw code in a reply.

Notice how you didn’t save daily_sales_replaced.split(",") to a variable? So when you iterate through daily_sales_replaced, it references the original string and not only prints each character in daily_sales_replaced, but also splits (or really, just removes) the ~. Hence your output.