pySerial works in miniterm but not in my app

[Dario]

Ehm sorry for the neverending spam, anyway I tried from my raspberry pi and it works there:

root at pi:/home/pi# python3 ./test.py 
b's'
b'w'
b' '
b'o'
b'0'
b'1'
b' '
b'+'
b' '
b'C'
b'o'
b'm'
b'm'
b'a'
b'n'
b'd'
b' '
b'O'
b'K'
b'\r'
b'\n'

Since I need it to work on the rpi and I was using Mint only for easiness, I'm ok with it :)

Thanks.