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- Python list vs. array – when to use? - Stack Overflow
The list is the part of python's syntax so it doesn't need to be declared whereas you have to declare the array before using it You can store values of different data-types in a list (heterogeneous), whereas in Array you can only store values of only the same data-type (homogeneous)
- python - What does list [x::y] do? - Stack Overflow
If you skip the end index, like in your question, it would take elements from the start index (x), pick every yth element until it reaches the end of the list if y is positive and beginning of the list if y is negative E g l[1::-1] = [2,1] l[1::2] = [2,4,6] The default step size is 1
- How to list all installed packages and their versions in Python?
For Windows 10, I think this is what you are looking for a list of available installed Pythons This is different from a list of packages as you can see below Also, on Ubuntu 20 04, I think the command is Python3 -0 list Yes, this works similar to node version manager c:\Users\user\AppData\Local\Programs\Python>py -0 list Python 0 not found!
- How to get all groups that a user is a member of?
List all available groups Get-WmiObject -Class Win32_Group And then list the groups the user belongs to [System Security Principal WindowsIdentity]::GetCurrent() Groups Comparison can then be done via checking through the SIDs This works for the logged in user Please correct me if I am wrong
- What does [:-1] mean do in python? - Stack Overflow
Working on a python assignment and was curious as to what [:-1] means in the context of the following code: instructions = f readline()[:-1] Have searched on here on S O and on Google but to no a
- How to concatenate (join) items in a list to a single string
@Wouter, it will not On the one hand, only lists of strings can be joined; so list join would be inappropriate for an arbitrary list On the other, the argument of str join can be any "iterable" sequence of strings, not just a list
- Quick way to list all files in Amazon S3 bucket?
This command will give you a list of all top-level objects inside an AWS S3 bucket: aws s3 ls bucket-name This command will give you a list of ALL objects inside an AWS S3 bucket: aws s3 ls bucket-name --recursive This command will place a list of ALL inside an AWS S3 bucket inside a text file in your current directory:
- How to initialize List lt;String gt; object in Java? - Stack Overflow
List<String> supplierNames1 = new ArrayList<String>(); List<String> supplierNames2 = new LinkedList<String>(); List<String> supplierNames3 = new Vector<String>(); Bonus: You can also instantiate it with values, in an easier way, using the Arrays class , as follows:
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