Use a context manager file while setting thumbnail

[Chiroyce1]

This closes the file after reading data. Once a file has been opened, you should always close it after reading or writing data to it. A better solution is to use a context manager:

with open(filename) as file:
    data = file.read()
# The file will automatically be closed after the above line

[Sid72020123]

Thanks!

[Sid72020123]

I will merge this later after my exams...

[Chiroyce1]

I will merge this later after my exams...

Sure, take your time!