itertools.takewhile()

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itertools.takewhile() one of those good-to-know-about-functions I decided to explore it today… Read on if you've not come across takewhile before… 👇🪡🧵 #Python #coding #100daysofcode

takewhile takes successive items from a sequence for as long as a certain condition is true. It's the equivalent of using a _while_ loop to _take_ successive items from the sequence until the while condition is not met–hence the name takewhile.

In this example, the challenge is to see how many successive heads I can get when I flip a coin…

In the first attempt there's a list of heads and tails. In this one, there are three heads at the start of the list. The result from takewhile gives three heads…

In the second part, we repeat this several times using a generator. You can see the outputs range from some cases with no heads at all, and others with varying number of heads. One of the tries even had 5 consecutive heads… #coinflip #coding #itertools

You can read the unrolled version of this thread here: typefully.com/s_gruppetta_ct/XEgP3M6