builtins.TypeError: catching classes that do not inherit from BaseException is not allowed

[MRAB]

On 2021-12-30 23:27, hongy... at gmail.com wrote:
> On Friday, December 31, 2021 at 7:04:24 AM UTC+8, Chris Angelico wrote:
>> Neither of these wants to be recursive, and writing them recursively 
>> pollutes the function signature with parameters that really exist just 
>> to be local variables. Passing an accumulator down is a terrible way 
>> to demonstrate the beauty of recursion - it instead shows off how you 
>> can shoehorn anything into recursion and make it worse in the process. 
> 
> Then what cases/scenarios can demonstrate the beauty of recursion?
> 
Walking a tree.