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- slice - How slicing in Python works - Stack Overflow
The first way works for a list or a string; the second way only works for a list, because slice assignment isn't allowed for strings Other than that I think the only difference is speed: it looks like it's a little faster the first way Try it yourself with timeit timeit () or preferably timeit repeat ()
- Proper way to make HTML nested list? - Stack Overflow
Learn how to properly create nested HTML lists with examples and best practices, as discussed on Stack Overflow
- Remove list from list in Python - Stack Overflow
Possible Duplicate: Get difference from two lists in Python What is a simplified way of doing this? I have been trying on my own, and I can't figure it out list a and list b, the new list should
- What is the difference between List. of and Arrays. asList?
@Sandy Chapman: List of does return some ImmutableList type, its actual name is just a non-public implementation detail If it was public and someone cast it to List again, where was the difference? Where is the difference to Arrays asList, which returns a non-public List implementation, that throws an exception when attempting add or remove, or the list returned by Collections
- How to cast List lt;Object gt; to List lt;MyClass gt; - Stack Overflow
(List<Customer>)(Object)list; you must be sure that at runtime the list contains nothing but Customer objects Critics say that such casting indicates something wrong with your code; you should be able to tweak your type declarations to avoid it But Java generics is too complicated, and it is not perfect Sometimes you just don't know if there is a pretty solution to satisfy the compiler
- How to overcome TypeError: unhashable type: list
A work around is create a custom_list type that inherits list with a method __hash__() then convert your list to use the custom_list datatype still better to use built-in types
- How do I make a flat list out of a list of lists? - Stack Overflow
If your list of lists comes from a nested list comprehension, the problem can be solved more simply directly by fixing the comprehension; please see How can I get a flat result from a list comprehension instead of a nested list? The most popular solutions here generally only flatten one "level" of the nested list See Flatten an irregular (arbitrarily nested) list of lists for solutions that
- Sum a list of numbers in Python - Stack Overflow
Depending on how big your list is, several orders of magnitude faster Also, it's a lot less code, and at least to me, it's easier to read I'm trying to make a habit out of using numpy for all groups of numbers, and it is a huge improvement to all the loops and loops-within-loops I would otherwise have had to write
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