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  1. 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...

  2. 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 …

  3. 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 …

  4. How can I pass a list as a command-line argument with argparse?

    Don't use quotes on the command line 1 Don't use type=list, as it will return a list of lists This happens because under the hood argparse uses the value of type to coerce each individual given argument …

  5. What is the difference between List.of and Arrays.asList?

    Oct 5, 2017 · @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 …

  6. Use a list of values to select rows from a Pandas dataframe

    list_of_values doesn't have to be a list; it can be set, tuple, dictionary, numpy array, pandas Series, generator, range etc. and isin() and query() will still work.

  7. Most efficient way to find if a value exists within a C# List

    Apr 17, 2013 · 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...

  8. 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 …

  9. Get unique values from a list in python - Stack Overflow

    Oct 15, 2012 · 1538 First declare your list properly, separated by commas. You can get the unique values by converting the list to a set.

  10. Google Sheets function list - Google Docs Editors Help

    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 …