"PortMidi: `Bad pointer'" when closing mido port

Question

My code:

import mido
import time

mido.set_backend('mido.backends.pygame')

output = mido.open_output()
output.send(mido.Message('note_on', note=64, velocity=60))
time.sleep(3)
output.close()

After the last line, the following error is printed:

Exception Exception: "PortMidi: `Bad pointer'" in <pypm.Output object at 0x025FF0B0> ignored

Apart from that, everything seems to work fine. However I'm developing a console app and this output is annoying. How can I get rid of this error?

I am using Windows 7 and Python 2.7.

Try this [post](http://stackoverflow.com/questions/15863534/playing-note-with-pygame-midi) — White Shadow, Oct 16 '16 at 07:28
If somebody's interested: I ended up just using the `RtMidi` backend. All is needed is `pip install python-rtmidi` and then `mido.set_backend('mido.backends.rtmidi')`. All works perfectly. — Aviv Cohn, Oct 16 '16 at 14:02

score 0 · Answer 1 · answered Jul 19 '18 at 14:10

0

You don't even have to set the RtMidi backend as it is the default, see mido backend documentation

answered Jul 19 '18 at 14:10

hfmanson

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"PortMidi: `Bad pointer'" when closing mido port

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