I’m pulling a bunch of rows out of my database, many of which share a similar ID. I want to group the ones with the same ID into a list and generate a map that maps from the ID to the list of results. I have the following code, but it seems like there must be a simpler way of
Why error handling doesn’t work in repl but in VSCode it does? discord.py
I am trying to handle errors for local commands of my discord bot and I get the following error discord.ext.commands.errors.CommandInvokeError: Command raised an exception: AttributeError: ‘Command’ object has no attribute ‘MissingRequiredArgument’ this only happens when I execute the …
Convert dictionary into dataframe (with repeated keys as rows)
I’m trying to convert the following dict: partlistzonesdef (has 50 keys) into a dataframe: Lets say we have the dict: How can I convert that to a dataframe like this: And so on? Answer Create a Series and transform each element of the list to a row with explode then reset_index to get expected outcome: …
Matplotlib: highlight range at the bottom of plot
I need to produce a plot with certain ranges highlighted. The problem is that I cannot use axvspan that would fill the span area from top to bottom. I need to limit the spanned area only to the bottom, as can be seen in the image below, where the range 0.5-1.5 is highlighted: Is there a way to achieve this
Django Foreign Key to Multiple Models
Is there a way to make one model be able to foreignkey to more than one model? For example Answer So you want to connect both the model jeans and shirt with cloth so you an connect like that I am afraid that’s not possible which you are trying but you can connect both model like that or the second
Pandas: How to fill nan value for column with part of value in other columns
I Want the value in city column to be filled with first word of venue column I tried using df.city.fillna(value=df.venue.str.split()[0]) but it taking first row values to fill Thank you in advance Answer From your DataFrame : After the split() you used, we can use map to assign the first list element to the N…
Kivy ScrollView code error with scrollbars (or bug?)
I’m playing around with a Kivy Scrollview, adding scrollbars, etc, and getting a strange crash. I don’t specifically think it’s a bug, it’s probably some configuration element on Scrollviews that I’m missing, but who knows? Given this code: if I click or touch the Scrollbars in a…
Manipulating numpy arrays (concatenating inner sub-arrays)
I have a question of manipulating numpy arrays. Say, given a 3-d array in the form np.array([[[1,2],[3,4]], [[5,6],[7,8]]]) which is a (2,2,2) array. I want to manipulate it into a (2,4) array such that a = np.array([[1,2,5,6],[3,4,7,8]]). I want to know is there any built-in methods of numpy particularly dea…
Dynamic Programming approach issue
Alice goes for jogging every day for N meters. Sometimes she runs and sometimes she walks. Her walking speed is 1m/s and running speed is 2m/s . Given the distance up to which she does jogging, calculate the number of ways she can do jogging. example: Input: 3 (total distance covered during jogging) Output: 3…
Warning while adding rank column to a pandas dataframe
I have derived a dataframe using groupby. I am trying to set a new column ‘rank’ based on the ‘volume’ column using the below code. The code is working but giving a warning – Below is my code. Would appreciate guidance as I am not too much experienced in Python/ Pandas. Answer Be…