Calling python script from Ankulua?

Hello, I'm trying to call python script which deals with http requests for me. I use qpython with request installed in my phone. Everything works in my computer, but in phone it does nothing. No error message. Thanks for any help. (Python script works in phone when started manually, just nothing happens when Im trying to call it from Ankulua).

os.execute("sdcard/scripts/upload.py")