I am making a Ryu application which has to keep track of network “conversations”, that is to say, the bidirectional L4 flows. The issue is that while there are many ways to do this, efficiency is a big problem. Problems: Bidirectional data must be easily looked up. For example, a naive approach mi…
Tag: python
In python is it possible to extract variables from a list inside a function call
I’m attempting to create a common create function that executes a function call to an SDK func: The SDK function is passed as my first parameter and the function itself can’t be edited request: This is a object that every create end point expects args: parameter list that will vary depending on th…
‘function’ object has no attribute ‘objects’ Django, help me
I’m designing a Django app and experiencing an error message: This is my views.py that generates the message: and this is my model.py Thanks for any help. Answer You wrote a view function named Post, hence Post.objects refers to the Post function, not the model. You furthermore named your model posts, i…
Using filter and lambda in a list of lists
I working with a list of lists. Each of those lists are the same — they contain title, url and some additional statistics (always in the same order). I would like to create a function find_title, which takes the wanted title and returns the whole list (with title, url and statistics). That’s my at…
Creating a tumbling windows in python
Just wondering if there is a way to construct a tumbling window in python. So for example if I have list/ndarray , listA = [3,2,5,9,4,6,3,8,7,9]. Then how could I find the maximum of the first 3 items (3,2,5) -> 5, and then the next 3 items (9,4,6) -> 9 and so on… Sort of like breaking it up to se…
Is there a list method in Python to access the next and/or previous value of a list item?
As I asked, is there a method or easy way to access the next and previous value from a list in a for? Answer List does not have methods to retrieve previous and/or next value of a list item. However, you can write some code to achieve this. Let’s say you have a list of top five imaginary warriors: warri…
Use local directory for wrapper in Snakemake rule
I want to know how to use a local directory for wrapper in Snakemake rule. I have read this Use Github URL for wrapper in Snakemake rule and try follows command But, I get a stderr with ‘NoneType’ object has no attribute ‘name’. Any help is much appreciated. Thanks. Answer It is (sligh…
Django 3.x error: ‘mysql.connector.django’ isn’t an available database backend
Having recently upgraded a Django project from 2.x to 3.x, I noticed that the mysql.connector.django backend (from mysql-connector-python) no longer works. The last version of Django that it works with is 2.2.11. It breaks with 3.0. I am using mysql-connector-python==8.0.19. When running manage.py runserver, …
Return only the property of enum, not Class.Property [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 2 y…
pycharm python selenium scraper apparently not printing correct value
I new to python, selenium, pycharm and such. I’m trying to print the value of a on a website ( at the moment of writing this the value is 6320 ).The code is not giving errors but it’s printing nothing. As you can see in the screenshot, when i’m debugging and hovering over the variable, it…