I am trying to test a function multiple times using different parameters. The return value should be True. What’s the best way to go about doing this in pytest? I want to avoid multiple functions acting as assert True wrappers e.g Answer Use @pytest.mark.parametrize()
Django – settings.DATABASES is improperly configured. Please supply the ENGINE value
I’ve got a postgres DB which Django successfully connects to but when trying to create a new model I’m getting the error settings.DATABASES is improperly configured. Please supply the ENGINE value. Check settings documentation for more details. I know settings.DATABASES is correctly configured as …
Django manual forms
I am trying to get my head around using manual forms. When I have in my forms.py checked that fields name and email is readonly And in the html But still when submitting without name and email, got error on missing both name and email. If anyone can help, much appreciated Answer You used placeholder in the in…
How to handle Pandas columns where elements are Lists?
I have loaded some JSON API data as a Pandas dataframe, as such, there are some columns that come out as lists. I also have some NaN values. First and foremost I want to replace the NaN with a single word such as ’empty’ but the rest of the data are already in list forms. I want to ultimately crea…
Combing concurrent.future.as_complete() with dictionary using zip()
I am a first time user of concurrent.futures and following the official guides. Problem: Inside the as_completed() block, how do I access the k, v which is inside the future_to_url? The k variable is vital. Using something like: I stumbled on this post however I cannot decipher the syntax to reproduce Origina…
How To Read and Print Data from CSV file into HTML File as Text
I’ve been trying to read data from .csv file and print the data as text/number into HTML file. Like the below example: Now, I want to print in HTML like this: Current age of Mr. abc is 30 Years. The bold & Italic text/numbers will be coming from the csv file and as soon as the csv file updated, the
Why don’t my Depth-First-Search code working properly?
it’s my 1st question so go easy on my thing ! as far as i know Depth-First Search has to search “Depth” first these are the DFS code and a example If we do “print(dfs(graph,1,visited))”, we can get the result “1 2 7 6 8 3 4 5”. this is natural. My question is that if …
Database connection broken even with with SQLAlchemy pre-ping
Since I moved my database from a mssql docker container to an azure database as a service my web application( flask) is being disconnected after several minutes. It is simply solved by a refresh of the page but still, there is an issue here. The error raised by SQLAlchemy is an Operational Error (https://docs…
How to set python function as callback for c++ using pybind11?
It is from SDK which I can call the client from dynamic library in c++ codes. I want to port it to python bindings use pybind11. How do I set_callback in python? I have seen the doc and try: The code just failed to compile. My question, how do I convert the py::function to ftype_callback or there is other way
change value by key of another dataframe
I think it is very easy and simple question. but it is very difficult for me. please help! I can write R code input df a is a df, it have key and answer value. b is a df, it have to change according to a. final result (what I want) but I don’t know how to write python. I