I have two data files in python, each containing two-column data as below: There are about 10M entries in each file (~400Mb). I have to sort through each file and check if any number in the first column of one file matches any number in the first column in another file. The code I currently have converted the…
Regex to keep one choice in square bracket
I am trying to write a regex to replace the whole square bracket with the first choice. For example, [ choice A | choice B ] I want to replace the previous square bracket as a whole with choice A. However, when I have more than one of these brackets: [ choice A | choice B ] and choose between
How to get String value instead of number in foreign key field in django?
Here’s my models I have assign data in jenkinsHistory table from Robot table. here’s the code that how i assign the data now i want to show that data in a table in my UI. so that i have written this view and here’s my html But when i got the data the foreign key field coming as a id
How do you summarize all the values in a list and print the final items and their final values in an organized manner?
Question: Write a program to help you manage your sales. It should keep asking for an item that has been sold, and how many were sold, until a blank item is entered. It should then print out how many of each item were sold that day. Code: This is the code and I’m doing something here that doesn’t …
override field alias from subclass in Pydantic
I have 2 models, 1 subclassing the other: How can I accomplish this ? Answer You don’t need to subclass to accomplish what you want (unless your need is more complex than your example). For import: Add the Config option to allow_population_by_field_name so you can add the data with names or firstnames F…
How to get all last rows at second level in MultiIndex DataFrame whose second level has variable length
I have this dataframe: And I want to keep all the last second level rows, meaning that: For thread_id==0 I want to keep the row message_id_in_thread==1 For thread_id==1 I want to keep the row message_id_in_thread==2 For thread_id==2 I want to keep the row message_id_in_thread==1 This can easily be achieved by…
How to convert byte array into various LREAL(double) values in TwinCAT3
I’m right now trying to convert my original python socket reading code into structure text in TwinCAT3. The following is the original python code that unpacks the read_data = socket.recv(1116) data into different things: According to the python code, I’ve written a socket connection and read funct…
timer is not displaying text in pygame
so I’m trying to make a 3-sec timer but my code just waits 3 secs then continues to my game I’ve been trying to fix it for a week now but it doesn’t work Answer You must handle the events in the innen loop. See pygame.event.get(): For each frame of your game, you will need to make some sort …
How can I report the outcome of the typical spatial frequency Butterworth filter in cycles / degree of visual angle?
I’m working on spatial frequency filtering using code from this site. https://www.djmannion.net/psych_programming/vision/sf_filt/sf_filt.html There is similar code here on stack exchange. What I was wondering though is how to convert the cutoff used in the Butterworth filter, which is a number from 0 to…
Pandas groupby collapse 1st rows of group
I have a system that lets me export data in a table of this format: where there are many columns like ‘data’ and they can have any values that don’t necessarily follow a pattern. I need to get the data into this format: I’ve tried reading the documentation on gropuby and searching si…