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- Meaning of list[-1] in Python - Stack Overflow
I have a piece of code here that is supposed to return the least common element in a list of elements, ordered by commonality: def getSingle(arr): from collections import Counter c = Counte
- Python: list of lists - Stack Overflow
The first, [:], is creating a slice (normally often used for getting just part of a list), which happens to contain the entire list, and thus is effectively a copy of the list The second, list(), is using the actual list type constructor to create a new list which has contents equal to the first list
- 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 ()
- pandas dataframe index: to_list () vs tolist () - Stack Overflow
to_list () is a method of Pandas dataframes that returns a list representation of the dataframe Although both methods return the same output, their differences lie in their origins and compatibility *to_list()* is Pandas-specific
- python - if else in a list comprehension - Stack Overflow
Since a list comprehension creates a list, it shouldn't be used if creating a list is not the goal; it shouldn't be used simply to write a one-line for-loop; so refrain from writing [print(x) for x in range(5)] for example
- join list of lists in python - Stack Overflow
Closed 9 years ago Is the a short syntax for joining a list of lists into a single list ( or iterator) in python? For example I have a list as follows and I want to iterate over a,b and c
- Array versus List lt;T gt;: When to use which? - Stack Overflow
A List uses an internal array to handle its data, and automatically resizes the array when adding more elements to the List than its current capacity, which makes it more easy to use than an array, where you need to know the capacity beforehand
- Most efficient way to find if a value exists within a C# List
In C# if I have a List of type bool What is the fastest way to determine if the list contains a true value? I don’t need to know how many or where the true value is I just need to know if one e
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