Method _insert_defaults

src/telegram/_bot.py:643–684

This method is here to make ext.Defaults work. Because we need to be able to tell e.g. `send_message(chat_id, text)` from `send_message(chat_id, text, parse_mode=None)`, the default values for `parse_mode` etc are not `None` but `DEFAULT_NONE`. While this *could* be done in E

(self, data: dict[str, object])

        )

    def _insert_defaults(self, data: dict[str, object]) -> None:
        """This method is here to make ext.Defaults work. Because we need to be able to tell
        e.g. `send_message(chat_id, text)` from `send_message(chat_id, text, parse_mode=None)`, the
        default values for `parse_mode` etc are not `None` but `DEFAULT_NONE`. While this *could*
        be done in ExtBot instead of Bot, shortcuts like `Message.reply_text` need to work for both
        Bot and ExtBot, so they also have the `DEFAULT_NONE` default values.

        This makes it necessary to convert `DefaultValue(obj)` to `obj` at some point between
        `Message.reply_text` and the request to TG. Doing this here in a centralized manner is a
        rather clean and minimally invasive solution, i.e. the link between tg and tg.ext is as
        small as possible.
        See also _insert_defaults_for_ilq
        ExtBot overrides this method to actually insert default values.

        If in the future we come up with a better way of making `Defaults` work, we can cut this
        link as well.
        """
        # We
        # 1) set the correct parse_mode for all InputMedia objects
        # 2) replace all DefaultValue instances with the corresponding normal value.
        for key, val in data.items():
            # 1)
            if isinstance(val, InputMedia):
                # Copy object as not to edit it in-place
                new = copy.copy(val)
                with new._unfrozen():
                    new.parse_mode = DefaultValue.get_value(new.parse_mode)
                data[key] = new
            elif (
                key == "media"
                and isinstance(val, Sequence)
                and not isinstance(val[0], InputPaidMedia)
            ):
                # Copy objects as not to edit them in-place
                copy_list = [copy.copy(media) for media in val]
                for media in copy_list:
                    with media._unfrozen():
                        media.parse_mode = DefaultValue.get_value(media.parse_mode)
                data[key] = copy_list
            # 2)
            else:
                data[key] = DefaultValue.get_value(val)

    async def _post(
        self,