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Oct 5, 2012 · By using a : colon in the list index, you are asking for a slice, which is always another list. In Python you can assign values to both an individual item in a list, and to a slice of the list.
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...
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 ...
Nov 2, 2010 · When reading, list is a reference to the original list, and list[:] shallow-copies the list. When assigning, list (re)binds the name and list[:] slice-assigns, replacing what was previously in the list. ...
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 f...
The notation List means "a list of something (but I'm not saying what)". Since the code in test works for any kind of object in the list, this works as a formal method parameter. Using a type parameter (like in your p...
Mar 20, 2013 · It gets all the elements from the list (or characters from a string) but the last element. : represents going through the list -1 implies the last element of the list
Google Sheets supports cell formulas typically found in most desktop spreadsheet packages. Functions can be used to create formulas that manipulate data and calculate strings and numbers. Here's a list of all the func...
# Here we use readlines() to split the file into a list where each element is a line for line in f.readlines(): # Now we split the file on `x`, since the part before the x will be # the key and the part after the value
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