Oct 3, 2009 · @AndersonGreen As I said there's no such thing as a variable declaration in Python. You would create a multidimensional list by taking an empty list and putting other lists …

Jul 12, 2011 · Matrix operations in numpy most often use an array type with two dimensions. There are many ways to create a new array; one of the most useful is the zeros function, …

Dec 7, 2009 · Use the array module. With it you can store collections of the same type efficiently. >>> import array >>> import itertools >>> a = array_of_signed_ints = array.array("i", …

Python's array module. The standard library also has the array module, which is a wrapper over C arrays. Like C arrays, array.array objects hold only a single type (which has to be specified at …

One thing to note: all elements in the list will have initially the same id (or memory address). When you change any element later on in the code, this will impact only the specified value, - …

Mar 20, 2016 · As noted in the comments, initializing a list (not an array, that's not the type in Python, though there is an array module for more specialized use) to a bunch of zeroes is just: …

May 28, 2013 · How can I represent a byte array (like in Java with byte[]) in Python? I'll need to send it over the wire with gevent. byte key[] = {0x13, 0x00, 0x00, 0x00, 0x08, 0x00};

Feb 1, 2015 · #Creating a Python object class TestDat(object): Dat1 = None Dat2 = None #Declaring the Test Array TestArray = [] #Declaring the object Test1 = TestDat() #Defining the …

To create an empty multidimensional array in NumPy (e.g. a 2D array m*n to store your matrix), in case you don't know m how many rows you will append and don't care about the …

Minor variation to user1850980's answer (for the question "How to initialize a list of empty dictionaries") using list constructor: