I want show all Articles from specific category in my template ‘category_articles.list.html’ at the link: path(‘category/<name_of_category_SLUG>/’ I have: URLS MODELS VIEWS ARTICLES_LIST.HTML template ARTICLE_DETAIL.HTML template finally…. CATEGORY_ARTICLES_LIST.HTMLtemplate I don’t know how put all articles to ARTICLE_DETAIL.HTML template… Answer You can iterate all articles from the reverse relation: I am not sure if you can use that in django templates and
Tag: python
Unexpected datetime behavior
I have a Django project where I used the strftime function like this in models.py: However, for some reason this returns a ValueError, even though according to a documentation (https://www.programiz.com/python-programming/datetime/strftime) this is a valid format string. Once I removed all the dashes, it worked normally. Why doesn’t this work? Do I need to import a module or something? Thanks. Answer
Download “401 Unauthorized” video with selenium
I’m trying to create a bot that will download videos from this site named “Sdarot” using selenium and python3. Each video (or episode) in the site has a unique page and URL. When you load an episode, you have to wait 30 seconds for the episode to “load”, and only then the <video> tag appears in the HTML source file.
Calculating a for loop with different indexes simultaneosuly
I have the following for function: This for loop takes a long time to calculate the values for the data frame as it has to loop 50 times for each row (it takes approximately 62 seconds) I tried to use multiprocessor pool from this question. My code looks like this now: I run the function asynchronously with different values for
Pyathena is super slow compared to querying from Athena
I run a query from AWS Athena console and takes 10s. The same query run from Sagemaker using PyAthena takes 155s. Is PyAthena slowing it down or is the data transfer from Athena to sagemaker so time consuming? What could I do to speed this up? Answer Just figure out a way of boosting the queries: Before I was trying:
Checking if list element in list of lists and returning sublist
I have two lists and want to return those sublistst of list2 that contain elements of list1. So far I tried using any: and a naive approach But I only managed to repeat empty list. The result should be Not sure, where I’m going wrong. Is there maybe a way using list comprehensions or mixing list comprehensions and ‘any’ function?
pipx-installed Spyder doesn’t recognize Poetry-installed pandas only when trying to view DataFrame in Variable Explorer
I’m using Python 3.8.5. My OS is Kubuntu 18.04. I installed Spyder and Poetry via pipx: Within my project folder, I installed pandas and spyder-kernels as dependencies: I can open Spyder just fine: In Spyder -> Preferences -> Python interpreter, I added the path to the Python interpreter for the project’s Poetry environment. I can import pandas in Spyder, like
How can I convert a list of strings to an array of float numbers?
I’m trying to convert a list of strings to an array of callable float numbers in Python, but I encounter an error. Here is a part of my code: Answer You can use a nested list comprehension for this. The first can iterate through your strings, then for each string you can str.split and convert each element to float from
How to print red heart in python 3
I need to print the red heart emoji ❤️️ with unicode in Python 3 but it has two unicodes (U00002764 and U0000FE0F). How am I suppose to print it? For example, a green heart is print(“U0001F49A”) Answer Whether it “works” depends on the font you have and which glyphs it supports. Here’s the same character in a non-code font (literally
python-requests: is it possible to bypass HTTPS for speed
Is it possible to bypass the HTTPS on python3+requests to gain speed? Profiling says SSL handling is the slowest part of my script: verify=False just disables the certificate checking, but SSL/TLS still happens in the background. I didn’t find any option to use the dumbest cipher (eg. 0bit) type to gain speed. Security is not my goal in this script.