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Nowadays stores come up with all sorts of funky promotions to catch your eye... But how much money do you actually save with each type of promotion?
The walrus operator
:= can be really helpful, but if you use it in convoluted
ways it will make your code worse instead of better.
:= to flatten a sequence of nested
ifs or to reuse partial computations.
There is a key hidden in one of three boxes and each box has a coin on top of it. Can you use the coins to let your friend know where the key is hiding?
In Python, if you are doing something that may throw an error, there are many
cases in which it is better to "apologise than to ask for permission".
This means you should prefer using a
try block to catch the error,
instead of an
if statement to prevent the error.
How should you unpack a list or a tuple into the first element and then the rest? Or into the last element and everything else? Pydon't unpack with slices, prefer starred assignment instead.
Five sailors and their monkey were washed ashore on a desert island. They decide to go get coconuts that they pile up. During the night, each of the sailors, suspicious the others wouldn't behave fairly, went to the pile of coconuts take their fair share. How many coconuts were there in the beginning..?