file doesn't exist

[mcgrim]

I did what you said, by adding that line,
but I still get the same outcome.

this is the server output

Output:
C:\Users\\PycharmProjects\client-server\venv\Scripts\python.exe C:/Users//PycharmProjects/client-server/server_2.py
server started...
client connected ip>:('127.0.0.1', 59653)

and this is the client output

Output:
C:\Users\PycharmProjects\client-server\venv\Scripts\python.exe C:/Users/PycharmProjects/client-server/client_2.py
enter file name ->upper.txt
file doesn't exist

Process finished with exit code 0