Method get_default

src/click/core.py:3067–3098

Return the default value for this option. For non-boolean flag options, ``default=True`` is treated as a sentinel meaning "activate this flag by default" and is resolved to :attr:`flag_value`. For example, with ``--upper/--lower`` feature switches where ``flag_value

(
        self, ctx: Context, call: bool = True
    )

        return info_dict

    def get_default(
        self, ctx: Context, call: bool = True
    ) -> t.Any | t.Callable[[], t.Any] | None:
        """Return the default value for this option.

        For non-boolean flag options, ``default=True`` is treated as a sentinel
        meaning "activate this flag by default" and is resolved to
        :attr:`flag_value`.  For example, with ``--upper/--lower`` feature
        switches where ``flag_value="upper"`` and ``default=True``, the default
        resolves to ``"upper"``.

        .. caution::
            This substitution only applies to non-boolean flags
            (:attr:`is_bool_flag` is ``False``). For boolean flags, ``True`` is
            a legitimate Python value and ``default=True`` is returned as-is.

        .. versionchanged:: 8.3.3
            ``default=True`` is no longer substituted with ``flag_value`` for
            boolean flags, fixing negative boolean flags like
            ``flag_value=False, default=True``.
        """
        value = super().get_default(ctx, call=False)

        # Resolve default=True to flag_value lazily (here instead of
        # __init__) to prevent callable flag_values (like classes) from
        # being instantiated by the callable check below.
        if value is True and self.is_flag and not self.is_bool_flag:
            value = self.flag_value
        elif call and callable(value):
            value = value()

        return value

    def get_error_hint(self, ctx: Context | None) -> str:
        result = super().get_error_hint(ctx)