Pandas: cross join with multiple conditions
Consider the following query:
Python
how to find how many common features that two columns share in a data frame in Python
Suppose I have the following dataframe where the first column is a facility and the second column is a product produced by the facility.
How to select all rows with the same name but different values in Python
Say I have the pandas DataFarme looks like this: Name VALUE 0 A 1 1 A 2 2 A 3 3 B 4 4 B 5 5 C 6 6 C 7 7 C 8 8 C 9 9 D 10 I would like to select all the rows with the same name but different … Read more
Css selector returns blank list
Hi there I am new to scrapy and web scraping in general and I am having a hard time with trying to scrape from this website: https://www.webuycars.co.za/buy-a-car
How can I limit the screen in pygame?
I just started trying out pygame, so I watched a tutorial. When the guy showed, how to create edges left and right from the screen, it just didn’t work when I did it, even though I’ve written it 100% equal as the tutorial guy. The tutorial is already two years old, so maybe pygame just … Read more
Ctypes “expected LP_c_double instance instead of tuple”
I have a C extension I want to call from Python. The C extension takes a pointer to an array of pointers and three pointers to arrays of int64_t values. I have called this C extension using a wrapper written in C and here is how I do it in C (in relevant part):
Can’t get the bot to disconnect after 10 seconds
I am trying to make my discord.py bot disconnect 10 seconds after it has joined. So far I can make it join, play the audio file but not yet leave after a set amount of seconds. I have a leave function that leaves, but I want to add it to the existing function that does everything
python : How to make a combination according to the count of elements?
import random import itertools method_list = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i'] random.shuffle(method_list) per = list(itertools.permutations(method_list, 4)) for ele in per: ss = set(list(ele)) if len(ss) == 4: if not ('h' in ss and 'i' in ss): result.append(ss) I want to make a total of 250 random combinations by taking 4 elements … Read more
How to make lines around the origin(will be cursor) in tkinter
What I am planning to do is make 360 lines that every one of it points to a different angle and it all will be around the cursor
so line 1 will be in angle 1 and line 2 in angle 2
and I want it to be around the cursor
Regex to match dollar amount with uppercase letter or word
I’m trying to match some sort of amount, here are all possibilities: