matrix-commander --devices E215: Error during room, set, get actions. Continuing despite error. Exception: can only concatenate str (not "NoneType") to str

[Benjamin-Loison]

matrix-commander --devices

2024-06-27 20:57:36,668:    ERROR: matrix-commander: E215: Error during room, set, get actions. Continuing despite error. Exception: can only concatenate str (not "NoneType") to str
2024-06-27 20:57:36,670:     INFO: matrix-commander: 1 error and 0 warnings occurred.

On OC3K benjamin.

matrix-commander -h

--devices, --get-devices
  Print the list of devices.

[Benjamin-Loison]

On LemnosLife VPS:

find / -name 'matrix_commander.py' 2> /dev/null

/usr/local/lib/python3.9/dist-packages/matrix_commander/matrix_commander.py
/usr/local/lib/python3.11/dist-packages/matrix_commander/matrix_commander.py

[Benjamin-Loison]

rr.id='CENSORED'
rr.display_name='CENSORED'
type(rr.last_seen_ip)=<class 'str'>
rr.last_seen_ip='CENSORED'
type(rr.last_seen_date)=<class 'datetime.datetime'>
rr.last_seen_date=datetime.datetime(CENSORED)
rr.id='CENSORED'
rr.display_name='CENSORED'
type(rr.last_seen_ip)=<class 'NoneType'>
rr.last_seen_ip=None
type(rr.last_seen_date)=<class 'NoneType'>
rr.last_seen_date=None
rr.id='CENSORED'
rr.display_name='CENSORED'
type(rr.last_seen_ip)=<class 'str'>
rr.last_seen_ip='CENSORED'
type(rr.last_seen_date)=<class 'datetime.datetime'>
rr.last_seen_date=datetime.datetime(CENSORED)

I have 3 devices with both rr.last_seen_{ip,date} None they are matrix-commander on Termux and Ubuntu server and app.element.io.

Adding --debug provides the traceback (hence avoid above find) and with:

4570a4571,4576
>             gs.log.debug(f'{rr.id=}')
>             gs.log.debug(f'{rr.display_name=}')
>             gs.log.debug(f'{type(rr.last_seen_ip)=}')
>             gs.log.debug(f'{rr.last_seen_ip=}')
>             gs.log.debug(f'{type(rr.last_seen_date)=}')
>             gs.log.debug(f'{rr.last_seen_date=}')

8go@5b94b04

is the first commit about rr.last_seen_date but it does not explain why it uses str.

diff matrix_commander.py /usr/local/lib/python3.11/dist-packages/matrix_commander/matrix_commander.py
4576c4576
<                 + rr.last_seen_ip
---
>                 + str(rr.last_seen_ip)

solves the issue.