[docs] [issue34538] Remove encouragement to author a base class for all Exception subclasses in a module

INADA Naoki <songofacandy@gmail.com> added the comment: I didn't claim this pattern is not used anymore. My point is "should we suggest this pattern for tutorial readers?" * Is this pattern recommended blindly? -- I think no. * How / when this pattern is recommended? -- When there is use case people want to catch the base exception. * Should it be in tutorial? -- I doubt it. This topic requires some experience to understand. ---------- _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue34538> _______________________________________