User-defined exception

[vbrozik (Václav Brožík)]

@Pejamide

please tell me how I can create such a block without using ____.

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Python Discourse Help About FAQ Keyboard Shortcuts Found in top right “hamburger” menu or press ? How do I bookmark a message? If one clicks the … icon below a message, it is replaced by a flag and bookmark icons. (The latter looks like a hanging banner, but represents the exposed end of a fabric bookmark.) (Silly to have to do this, but that is another topic.) In any case, click your profile image and the left of the three icons underneath is the bookmark icon. Click that you…

Please edit your post to show the code properly.