input will return str, so you need to compare choice with '2' or convert the user input to int and then you can compare with 2.Then to end the loop
choice must become 'exit'also, I must comment on excessive use of brackets - no need of brackets in cases like
("enter")
If you can't explain it to a six year old, you don't understand it yourself, Albert Einstein
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs
How to Ask Questions The Smart Way: link and another link
Create MCV example
Debug small programs