For example: How do I know whether it is possible or not possible to use a function as a ‘key=func’ argument? Answer As indicated in the documentation, min() (and max()) expect a one-argument ordering function like that used for list.sort(). https://docs.python.org/3/library/functions.html#min So,…
Is there an easy way to establish a hierarchy between entities using only 2 ID fields?
I have a table with 2 fields like so: Account_ID Parent_ID x y x1 y x2 y y z y1 z y2 z z z z a z1 a a a b b The IDs fields are both in int64 format. The first field represents accounts which could be controlled by a parent account which could be itself controlled by
finditer with re.DOTALL starts analysis from span=(16,17). Why?
I’m trying to dismember a text file to sections with findall sort or action. I need backreferencing so I opt for finditer. Since I’m processing a text file w multiple lines – I need re.DOTALL. It works fine as long as the match doesn’t start in first 16 characters. The (over)simplified…
How to store multiple strings in list in Python?
I have this ListOfCoordinates list with 5 tuples (image below), with each index corresponding to the coordinates of two regions of the brain. I also have this variable named brain_areas_ROIs, which is a dictionary (image below) with the names of all possible brain regions. So I want to store in a dictionary t…
Calculate Density based on Lat/Lon
I’m very sorry to say that I do not have any sample code for this question. The reason being, I’ve been looking for a way to do this and I’ve got no ideas. I’m not looking for specific code help, more like some general guidance on where to start. I have lat/lon for people living around…
Python error: urllib.error.HTTPError: HTTP Error 404: Not Found
I am building a python project for the school (YouTube video downloader), but when I run it, it appears this error: urllib.error.HTTPError: HTTP Error 404: Not Found I have already tried other codes from other people and no one worked, I think is my computer. What can I do? Here’s the code: And here is …
Display documents in a table from MongoDB with Jinja2 HTML
I currently try to figure out how to display multiple documents from my MongoDB collection “one by one”. My recent code to fetch the data looks like this: My HTML Jinja injection like this: The code itself works fine – but literally all URLs are displayed in one row of course. Right now I ca…
Python pandas dataframe populate hierarchical levels from parent child
I have the following dataframe which contains Parent child relation: I would like to get a new dataframe which contains e.g. all children of parent a: child level1 level2 level x d a b – b a – – c a – – f a c – h a c f g a c – I do not know how
Append an input to a method parameter list
I’m using a generic local crud so i can implement the same method for every single list, but when trying to add a value to a list it doesn’t update the root list but the parameter one does, any help? If i print the parameter “lista” when appends the new value it returns the list with t…
For loop to get prime numbers [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 1 y…