[QUESTION] Append/Update on ChatPermissions

[AyraHikari]

Issue I am facing

I am facing issue when trying to set permission for send poll to True
chat.set_permissions(permission=ChatPermissions(can_send_polls=True))
Then send media, send stickers and gifs, and embed links are turned off.
Because it should not, so i am going to check current permission and replace to new permission and set new one.
And now i am stuck at ChatPermission, since it wasn't dict. So i can't merge or append at ChatPermission.

Traceback to the issue

chat.set_permissions(permission=ChatPermissions(can_send_polls=True))

changed default permissions

+Send polls
−Send media
−Send stickers & GIFs
−Embed links

Related part of your code

current = context.bot.getChat(chat_id).permissions
new = {'can_send_polls': True}

permissions = {'can_send_messages': None, 'can_send_media_messages': None, 'can_send_polls': None, 'can_send_other_messages': None, 'can_add_web_page_previews': None, 'can_change_info': None, 'can_invite_users': None, 'can_pin_messages': None}
permissions.update(current)
permissions.update(new)
# ???

doing chat.set_permissions(permission=permissions) will got error since set_permissions is converting to_dict() at

python-telegram-bot/telegram/bot.py

Line 2935 in 16613d7

data = {'chat_id': chat_id, 'permissions': permissions.to_dict()}

[Bibo-Joshi]

Related to #1803 (see this comment): TL;DR: right now, you need to set all the permissions to True manually. This is only implicitly clear from the official API docs, unfortunately. I'll make sure to add a note to the docs about that.

About "merging" ChatPermissions: You can just do

current = context.bot.getChat(chat_id).permissions
current.can_send_polls = True
current.can_send_media = False 
...
context.bot.set_chat_permission(chat_id = chat_id, permissions = current)

Alternatively, if you want to stick with the dictionary approach:

current = context.bot.getChat(chat_id).permissions
new = {'can_send_polls': True}

permissions_kwargs = {'can_send_messages': None, 'can_send_media_messages': None, 'can_send_polls': None, 'can_send_other_messages': None, 'can_add_web_page_previews': None, 'can_change_info': None, 'can_invite_users': None, 'can_pin_messages': None}
permissions_kwargs .update(current)
permissions_kwargs .update(new)
permissions = ChatPermission(**permissions_kwargs) # creates a ChatPermissions instance based on your kwargs

context.bot.set_chat_permission(chat_id = chat_id, permissions = current)

[AyraHikari]

Thanks for your explain and example code, now everything was fine, here is my final code

current = eval(str(context.bot.getChat(chat_id).permissions)) # make sure it was dict
new = {'can_send_polls': False}

permissions = {'can_send_messages': None, 'can_send_media_messages': None, 'can_send_polls': None, 'can_send_other_messages': None, 'can_add_web_page_previews': None, 'can_change_info': None, 'can_invite_users': None, 'can_pin_messages': None}
permissions.update(current)
permissions.update(new)
new_permissions = ChatPermissions(**permissions)

context.bot.set_chat_permissions(chat_id=chat_id, permissions=new_permissions)

Result are

changed default permissions

−Send polls

[AyraHikari]

Also it seems disable can_send_media_messages was doesn't work.
Trying with {'can_send_media_messages': False} is not going to enable
Also do {'can_send_media_messages': False, 'can_send_other_messages': False, 'can_send_polls': False} media permission not disabled, just sticker & gifs and poll only
But {'can_send_media_messages': True} is works for enable media permission 🤔

[Bibo-Joshi]

Can confirm that something is wrong there. However, this is a Telegram issue. All PTB can do, is pass the values to the API. I get the same results when making simple http requests in the browser. Maybe contact @botsupport about it … Also, keep in mind that e.g. can_send_messages will be True automatically, when switching can_send_media_messages to True.

[jesvijonathan]

I can't restrict users from messaging ("an_send_messages":False) just as mentioned by @AyraHikari, how then are other telegram bots able to restrict users ? or is there any other way ?

But un-restricting ("an_send_messages":True) restricted users works fine...

My function contains

` msg = update.message.reply_to_message

user_id = msg.from_user.id
chat_id = update.effective_chat.id
msg_text = update.message.text.split(None, 1)

chat_id = update.effective_chat.id
current = eval(str(context.bot.getChat(chat_id).permissions))
new = {'an_send_messages': False}

permissions = {'can_send_messages': None, 'can_send_media_messages': None, 'can_send_polls': None, 'can_send_other_messages': None, 'can_add_web_page_previews': None, 'can_change_info': None, 'can_invite_users': None, 'can_pin_messages': None}

permissions.update(current)
permissions.update(new)
new_permissions = ChatPermissions(**permissions)

context.bot.restrict_chat_member(chat_id, user_id,permissions=new_permissions)
update.message.reply_text("Muted!")`

[jesvijonathan]

Ok, so it looks like to restrict a member from sending a message, we have to restrict 4 other permissions along with it,

so previous code :

new = {'an_send_messages': False}

permissions = {'can_send_messages': None, 'can_send_media_messages': None, 'can_send_polls': None, 'can_send_other_messages': None, 'can_add_web_page_previews': None, 'can_change_info': None, 'can_invite_users': None, 'can_pin_messages': None}

updated code :

new = {'can_send_messages': False, 'can_send_media_messages': False,'can_send_polls': False,'can_send_other_messages': False, 'can_add_web_page_previews': False,}

permissions = {'can_send_messages': None, 'can_send_media_messages': None, 'can_send_polls': None, 'can_send_other_messages': None, 'can_add_web_page_previews': None, 'can_change_info': None, 'can_invite_users': None, 'can_pin_messages': None}

the updated code works like charm 👍🏽