The function takes a list of paths to all folders and checks if it is empty. If empty, it deletes. But after she deleted the folder, the error FileNotFoundError: [WinError 3] The system cannot find the path specified: ‘\\Projects\\Example\\New folder’ appears. I do not fully understand why it is looking for it after deletion. And… Read More How to fix FileNotFoundError
As you can see, when I cast int to void* and then cast it back to int, the value is not the same, and I encounter a segmentation fault. What is the problem with this? I also tried int j = *(int*)i and it fails, too. void* run(void* i) { // some code uintptr_t j… Read More change in value after casting int to uintptr_t
Here is my python code (I am on Mac osx) os.system("open Applications/Google Chrome") I cannot figure out how to make spaces, or how to make this work. Can someone tell me how to make terminal understand this? >Solution : You need to add quotation marks around the file path, so it can understand that it… Read More os.system file names with spaces
I have a list of .csv files stored in a local folder and I’m trying to concatenate them into one single dataframe. Here is the code I’m using : import pandas as pd import os folder = r’C:\Users\_M92\Desktop\myFolder’ df = pd.concat([pd.read_csv(os.path.join(folder, f), delimiter=’;’) for f in os.listdir(folder)]) display(df) Only one problem, it happens that one… Read More How to concatente a list of csv (including empty ones) using Pandas
I am a new python user and I am trying to loop through all the items in a set file. Here is my code this far – import os import pandas as pd print(os.getcwd()) for files in os.listdir(r"../Python/Rev Renewables/Inputs/Option Inputs/"): file = pd.read_excel(files,sheet_name=’ContractSpecs’) print(file) When I load the for loop without the pd.read_excel it prints… Read More How to loop through a folder in Python
I want to design a function as follows: explore("jpg", "../test_media") outputsample: {‘../test_media’:1,’../test_media/travel_photos’:3} That is, the output of the function should be a dictionary where each key is the address of a folder and each value is the number of files with that extension directly in that folder. If a folder does not contain the file… Read More Obtaining the number of files based on the extension and folder you give it in the function
I need help in modifying this code. Right now, it creates a process, and then waits for its termination. After which, another process is created, and then it waits for its termination. I want to modify it so that it creates both processes at the same time and executes them parallel to each other. The… Read More How do I make it so that processes are created parallel to each other rather than one after another?
I have a file that stores 7 numbers in double. See below. But its size is only 34 bytes. Shouldn’t it be 7*8 = 56 bytes instead? $ cat data 17.2 18.1 16.5 18.3 12.6 0.75 0.25$ ls -l data -rw-r–r– 1 root root 34 Apr 15 03:29 data >Solution : The file contains text… Read More Why does storing 7 floating-point numbers need 34 bytes?
I have been reading about operating system design in the book, "The Xinu Approach 2nd Ed.", and came across a for loop statement in chapter 10 on page 182/183. The for loop starts off decrementing the initialization statement of the for loop. I hadn’t seen this before, so I created my own version of this… Read More Decrementing Initialization of a For Loop (C) – EX: for(i–; i>0; i–)
I’m trying to get the current directory using the OS module, like that: directory=os.getcwd() However, when I do this, the directory comes with \, like ‘C:\Users\…’, and I need to use directory with \\ or /. Is that anyway to get the directory with \\ or /? >Solution : You can just replace the \… Read More How to get the current directory in python?