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I'm having some trouble figuring out how to slice python lists, it is illustrated as follows:
>>> test = range(10) >>> test [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] >>> test[3:-1] [3, 4, 5, 6, 7, 8] >>> test[3:0] [] >>> test[3:1] [] >>> test [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] To my understanding, python slice means lst[start:end], and including start, excluding end. So how would i go about finding the "rest" of a list starting from an element n?
Thanks a lot for all your help!
376
To access a range of items in a list, you need to slice a list. One way to do this is to use the simple slicing operator : With this operator you can specify where to start the slicing, where to end and specify the step.
Python supports slice notation for any sequential data type like lists, strings, tuples, bytes, bytearrays, and ranges. Also, any new data structure can add its support as well.
Method #2 : Using islice() + reversed() The inbuilt functions can also be used to perform this particular task. The islice function can be used to get the sliced list and reversed function is used to get the elements from rear end.
You can leave one end of the slice open by not specifying the value.
test[3:] = [3, 4, 5, 6, 7, 8, 9] test[:3] = [0, 1, 2] If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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