custom_fields is not a list by default

[masnun]

while trying to add custom fields as mentioned in the docs, I noticed that the custom_fields are not by default a list. So I had to do this:

post.custom_fields = []
post.custom_fields.append({"key": "key", "value":"value"})

It works!

Is it possible that we manually don't have to force it as a list?

[kingmo888]

if code like this: post.custom_fields.append({"key": "_key", "value":"value"})

it's not work!

what can I do for this?