Where's the missing file?

Question

i created a file:
https://code.sololearn.com/cgI7g2YfOm46/?ref=app

i tried to read the file:
https://code.sololearn.com/c5Loq2j9MPZf/?ref=app

so, what's happening in the background?
what did sololearn do?
where did the file go?

Answer 1

Your programs are running on a random server with a cleaned environment on sololearn. You can't save files with one program and read them with a second one.

Answer 2

Harsha S ,

what you can do is to put both codes in one file:

1. creating / writing to a file
2. reding from the file

file = open("harsha.txt", "w")
file.write("harsha")
file.close()
file = open("harsha.txt")
print(file.read())
file.close()

as this will be executed in one session, you can store and access the created file. when the execution is terminated, the file is gone.

Answer 3

In the past i made a small program to see where the code was running.

If you run it more than once, you will see that you are every time on a different node:

import os
import socket

print(os.uname())
print()
print(socket.gethostname())

Answer 4

Lothar thanks
I was just curious what was going behind the screen

Answer 5

This is a bit off topic but may be useful to you in the future. If you write to a file as you did in the example, if there were to be an exception during the file.write() call the file might not close and may leak a discriptor. Use try and finally for write and close calls.
You can avoid all that by using the with statement.

Answer 6

Sololearn creates file in temporary store like cache and It will cleared after exit. Not exist in server...

Answer 7

Paul

can i use this somehow to link 2 different python codes in sololearn?

https://code.sololearn.com/chDn3SO5jt1V/?ref=app

i think it's not possible.
it's complicated.