I have a streamlit app where a user can upload a csv file. I would like streamlit to detect the object/dimension columns and create a multiselect filter for each of them with the unique values inside each of the columns. For example if the user uploads a file with 3 object/dimension, 3 separate multi select filters will be created. I
How do I get values from a C dll array pointer using ctypes and Python
A DLL provides a pointer to a 1D array in my C code like this: I’m building a Python project where I need to access the values of the same array. I’ve tried the following but get an access violation when I try iterate surfaceData. I’m accessing the wrong memory location but I’m not too sure what I’ve done wrong.
set a time limit on the Pool Map operation when using multiprocessing?
Is it possible to set a time limit on the pool map() operation when using multiprocessing in Python. When the time limit is reached, all child processes stop and return the results they already have. In the example above, I have a very large list vs. Ideally, all elements in the list vs will be sent to function task(), and
Complicated list comprehension from dict
After Googling a bit on this and reading a few other SO posts (this one in particular), I can’t seem to find a working solution. I have a loop as follows: Basically I have a dictionary with values that are lists. For each key in the dictionary, I need to create a dictionary in another list that puts the dictionary
Creating a graph from a string
Let’s consider a “maze” defined by a string, for example The sign “#” denotes a wall and the sign “*” denotes the possible path. Moreover “S” is the starting point and “F” is the destination. I would like to apply a path searching algorithm to solve this labyrinth for instance Breadth-First Search. I’ve read that that algorithm uses a graph
Using itertools for combinations in python
I have the following table with 4 columns: My desired Output in a df: I need it to loop through and combine all possible combinations. What is the best way to do this using python? Answer I assume that by table you mean a pandas dataframe, so the first step would be to collect the columns of interest into a
Kivy Popup Shows Same Buttons as Main Screen
I’m very new to Kivy (been using for about four hours…) and I’ve hit a wall with popups. I have a main screen which has four buttons in a float layout. On press down I want the ‘MOVE’ button to open a popup. Now I’ve got this working but the popup contains the same four buttons as my mainscreen. This
How to avoid unsupported .nc file while reading from different directory
I have several folders in a directory containing .nc files. While reading, I am getting an error: NETCDF can not read unsupported file Since there are more than 5 thousand files, I don’t know which file is corrupted or unsupported. Is there any way to read files by jumping into another supported file? The code that I am using is:
How to extract element from a webpage with special class name?
I have a txt file filed with multiple urls, each url is an article with text and their corresponding SDG (example of one article 1) The text parts of an article are in balises ‘div.text.-normal.content’ and then in ‘p’ And the SDGs are in ‘div.tax-section.text.-normal.small’ and then in ‘span’ To extract them I use the following lines of code :
make a list and limit only the input in single character using python.if the user input two characters it will be invalid
This is my code and I don’t know how to detect a single character. If a user input two character they will get an error but if the user input single character the input item will be in the list. Answer