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Tag: arrays

How do I get an empty list of any size in Python?

I basically want a Python equivalent of this Array in C: but in python I declare an array like: and the problem is I want to assign random slots with values like: but I can’t do that with Python, since the Python list is empty (of length 0). Answer If by “array” you actually mean a Python list, you can

slicing a 2d numpy array

The following code: Is generating the following error message: I looked up the syntax at this link and I seem to be using the correct syntax to slice. However, when I type into the Python shell, it gives me the following output, which is clearly wrong, and is probably what is throwing the error: Can anyone show me how to

Multidimensional array in Python

I have a little Java problem I want to translate to Python. Therefor I need a multidimensional array. In Java it looks like: Further values will be created bei loops and written into the array. How do I instantiate the array? PS: There is no matrix multiplication involved… Answer You can create it using nested lists: If it has to

Python: can I have a list with named indices?

In PHP I can name my array indices so that I may have something like: Is this possible in Python? Answer This sounds like the PHP array using named indices is very similar to a python dict: See http://docs.python.org/tutorial/datastructures.html#dictionaries for more on this.

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