How to set option stream-lavf-o / stream-lavf-o-append?

[Aiayalethe]

import mpv
options = {
    "stream-lavf-o-append": "reconnect_on_network_error=yes"
}
player = mpv.MPV(log_handler=print, input_default_bindings=True, input_vo_keyboard=True, **options)
print(player["stream-lavf-o"])

AttributeError: ('mpv option does not exist', -5, (<MpvHandle object at 0x7fd87d421910>, b'stream-lavf-o-append', b'reconnect_on_network_error=yes'))

---

import mpv
# --stream-lavf-o-append=reconnect_on_http_error=4xx,5xx
# --stream-lavf-o-append=reconnect_delay_max=30
# --stream-lavf-o-append=reconnect_streamed=yes
# --stream-lavf-o-append=reconnect_on_network_error=yes
options = {
    "stream-lavf-o": "reconnect_on_http_error=4xx,5xx reconnect_delay_max=30 reconnect_streamed=yes reconnect_on_network_error=yes"
}
player = mpv.MPV(log_handler=print, input_default_bindings=True, input_vo_keyboard=True, **options)
print(player["stream-lavf-o"])

{'reconnect_on_http_error': '4xx', '5xx reconnect_delay_max': '30 reconnect_streamed=yes reconnect_on_network_error=yes'}

[Aiayalethe]

they need to be separated with comma:

import mpv
options = {
    "stream-lavf-o": "reconnect_on_http_error=4xx,5xx,reconnect_delay_max=30,reconnect_streamed=yes,reconnect_on_network_error=yes"
}
player = mpv.MPV(log_handler=print, input_default_bindings=True, input_vo_keyboard=True, **options)
print(player["stream-lavf-o"])

{'reconnect_on_http_error': '4xx', '5xx,reconnect_delay_max': '30', 'reconnect_streamed': 'yes', 'reconnect_on_network_error': 'yes'}

now only issue left is escaping comma...

[Aiayalethe]

import mpv
options = {
    "stream-lavf-o": "reconnect_on_http_error=\"4xx,5xx\",reconnect_delay_max=\"30\",reconnect_streamed=\"yes\",reconnect_on_network_error=\"yes\""
}
player = mpv.MPV(log_handler=print, input_default_bindings=True, input_vo_keyboard=True, **options)
print(player["stream-lavf-o"])

{'reconnect_on_http_error': '4xx,5xx', 'reconnect_delay_max': '30', 'reconnect_streamed': 'yes', 'reconnect_on_network_error': 'yes'}

...