Python Initialize List With Values
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Python Initialize List With Values
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You can initialize a list in Python using square brackets the list method list multiplication and a list comprehension Square brackets let you initialize an empty list or a list which contains some default values The list method works in the same way as square brackets In order to initialize the list with default values, we can use the comprehension method. It consists of square brackets containing an expression followed by a for clause and further followed by an optional if clause. The expression can be any type of object that you want to put on the list.
Python Initialize List With Values10 Answers Sorted by: 1135 You can also write: [e] * n You should note that if e is for example an empty list you get a list with n references to the same list, not n independent empty lists. Performance testing At first glance it seems that repeat is the fastest way to create a list with n identical elements: In python as far as I know there are at least 3 to 4 ways to create and initialize lists of a given size Simple loop with append my list for i in range 50 my list append 0 Simple loop with my list for i in range 50 my list 0 List comprehension my list 0 for i in range 50 List and integer multiplication