This is what I’ve tried so far: It doesn’t work, can you explain why? Answer Should work. This code will check with is_alpha if the i character is an alphabetic letter (A-Z, case unsensitive) and if it returns false, will add it to the new_string variable. Later, it will check if the string contai…
Joining dataframes using rust polars in Python
I am experimenting with polars and would like to understand why using polars is slower than using pandas on a particular example: Answer A pandas join uses the indexes, which are cached. A comparison where they do the same:
How could I stop or delay a Pygame timer, which is linked to an User event?
I’m new to python, but I’m trying to learn it by myself for a university course. Therefore I have to program a pygame window that represents a drone fly zone (The drone should fly automated like a search helicopter in a given area and on the window a visual representation of what happens should be…
How can I automatically calculate the formulas of an Excel file made with OpenPyxl?
I’m working on an program which makes an excel file, then it gets the info into JSON and does more things. I’m struggling with Openpyxl. I found out today that if you don’t open an Excel file made with Openpyxl with Excel, the formulas won’t be computer. So when I write: I don’t …
Finding similar rows in two dataframes using pandas
I have two data frames, The first one is the root data frame, second one is obtained from first data frame (which is based on a pattern that “Name” must be repeated 3 times and “Subset” must of the pattern as shown in dataframe 2 below). Based on these two dataframes, i need to add a &…
Nextcord Slash Commands
I’ve heard that nextcord has now slash commands! That’s great, and this is why I want to add them in my bot. I’ve already watched YouTube tutorials, but, for some reason, it doesn’t work. This is my main.py file EDIT: Idk if it changes something but I use repl.it Answer I tried your co…
Create column from array of struct Pyspark
I’m pretty new to data processing. I have a deeply nested dataset that have this approximately this schema : For the array, I will receive something like this. Keep in mind that the length is variable, I might receive no value or 10 or even more Is there a way to transform the schema to : with VAT and f…
Can’t launch Spyder after installing with pip
Python beginner here. I would like to use Spyder as my Python IDE. Alas the standalone version does not include pip and I want to work with “Vanilla Python” rather than Anaconda. So I installed Spyder via pip install spyder, which works fine. However, when running spyder3 in the command window, no…
The transaction declared chain ID 5777, but the connected node is on 1337
I am trying to deploy my SimpleStorage.sol contract to a ganache local chain by making a transaction using python. It seems to have trouble connecting to the chain. It seems to be connected to the ganache chain because it prints the nonce, but when I build and try to print the transaction here is the entire t…
What’s the mathematical reason behind Python choosing to round integer division toward negative infinity?
I know Python // rounds towards negative infinity and in C++ / is truncating, rounding towards 0. And here’s what I know so far: But why Python // choose to round towards negative infinity? I didn’t find any resources explain that, but only find and hear people say vaguely: “for mathematics …