What are some lesser-known functions in the itertools module?
The itertools module has several lesser-known functions like pairwise
, starmap
, and tee
. Would you like to know more about any specific one?
Can you explain how pairwise
works?
Sure! The pairwise
function takes an iterable and returns consecutive pairs from it. For example, from the list [1, 2, 3], it would yield (1, 2) and (2, 3).
What about starmap
? How is it different from map
?
starmap
is similar to map
, but it takes a function and an iterable of iterables. It unpacks each iterable as arguments to the function. For instance, starmap
can be used to apply a function to pairs of values.
Are there any performance considerations when using these functions?
Yes, some functions like tee
can create multiple independent iterators, which may consume more memory. It's best to use them judiciously.
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