Creating a Huge Dummy File in a Matter of Seconds in C#

I want to create a huge dummy file say 1~2 GBs in matter of seconds. here is what I've written in C#: file.writeallbytes("filename",new byte[a huge number]); and another way with indicating the...

Delete file from internal storage

I'm trying to delete images stored in internal storage. I've come up with this so far: File dir = getFilesDir(); File file = new File(dir, id+".jpg"); boolean deleted = file.delete(); And this...

What is a good way to handle exceptions when trying to read a file in python?

I want to read a .csv file in python. I don't know if the file exists. My current solution is below. It feels sloppy to me because the two separate exception tests are awkwardly juxtaposed. Is...

How to delete a file or folder in Python?

How do I delete a file or folder in Python?

Use a context manager to redirect script output to a file?

I'm programming a script where I have an option, to be passed on the command line, whether the script should print its results to stdout or to a predefined results file. A code outline for this is...

writing new line into text file in matlab

function [org_data] = file_manipulation(in_fname, txt_fname, mat_fname) org_data = round(load(in_fname)); fid = fopen(txt_fname,'wt+'); student_id = '9900'; txt = [txt_fname ' : '...

how to get url html contents to string in java

I have a html file stored on the server. I have the URL path something like this: <https://localhost:9443/genesis/Receipt/Receipt.html > I want to read the contents of this html file which would...

Can I read and write file in one line with Python?

with ruby I can File.open('yyy.mp4', 'w') { |f| f.write(File.read('xxx.mp4')} Can I do this using Python ?

How do I concatenate text files in Python?

I have a list of 20 file names, like ['file1.txt', 'file2.txt', ...]. I want to write a Python script to concatenate these files into a new file. I could open each file by f = open(...), read line...

Reading from a file and output its contents in Assembly

Good day! I have hear a code snippet that prints a welcome message (menu) using video mode 10h. When 4 is pressed, it should read from a file and display its contents on the screen. However, it...

getResourceAsStream returns null

I'm loading a text file from within a package in a compiled JAR of my Java project. The relevant directory structure is as follows: /src/initialization/Lifepaths.txt My code loads a file by...

Adding highscores to java game - From console to JPanel - Saving highscore in encrypted text file

I am new to Java, and learning new things everyday. English is not my mother language, I'm sorry. So, I'm making a maze game in Java to learn while writing code. For my maze game, the player needs...

fread is terminating before accepting all user inputs(from stdin)

Here is a solution to a CODECHEF Problem "INTEST", which basically tests how fast IO operation is done by a code. Input The input begins with two positive integers n k (n, k<=107). The next n...

Visual Studio 2015 shows Debug Assertion Failed

I have made a simple file reading program that runs successfully in DEV C gcc compiler, but it shows an error Debug Assertion Failed. I searched and someone has asked the same question 12 days...

How to check that two files are equal in Haskell

I'm learning Haskell and I need to compare two files. I did not find a function that does this, so I coded it myself. Below is the function I came up with. cmpFiles :: FilePath -> FilePath -> IO...

How to convert the contents of a Java byte array to C string in JNI?

Update: Error: jbyte* elements = (*env)->GetByteArrayElements(env, array, NULL); returns only 8 bytes. Provide any alternative to way to retrieve byte form jbytearray. I'm new in JNI so I'm not...

PyPDF2 write doesn't work on some PDF files (Python 3.5.1)

First of all I am using Python 3.5.1 (32 bit version) I wrote the following program to add a pagenumber on all pages of my pdf files using PyPDF2 and reportlab: #import modules from os import...

How to read a file line by line with space separated values?

I have a different kind of file format which contains millions of lines in a txt file. My file format is something like this: 12122.AA.K...

Can't load 'mnist-original' dataset using sklearn

This question is similar to what asked here and here. Unfortunately, in my case the suggested solution didn't fix the problem. I need to work with the MNIST dataset but I can't fetch it, even if I...

how to cap kotlin coroutines maximum concurrency

I've got a Sequence (from File.walkTopDown) and I need to run a long-running operation on each of them. I'd like to use Kotlin best practices / coroutines, but I either get no parallelism, or way...

Creating txt file from a dataframe with specific fixed-width format

I have a data frame called dfGL with 22 columns and 17000 rows! The row names are: pressure, diameter, roughness... I want to create a txt file from this data frame such that: 1st column of dfGL...

"Need a valid file name!" xhtml2pdf with Django

My problem is: I am creating a pdf file from an html, using the xhtml2pdf library. Having created the pdf file, I send the file to the user via email using the sendgrid API. However, I am not able...

DLL load failed for pytables

I get the following error when running code containing pytables: Traceback (most recent call last): File "C:\Users\pierr\python354\lib\site-packages\pandas\io\pytables.py", line 469, in...

FileNotFoundException open failed: EPERM (Operation not permitted) during saving image file to internal storage on android

I faced this problem when I tried to save the image to internal storage on android. public static String setImage(Bitmap image) { if (image != null) { FileOutputStream outputStream =...

Cassandra Windows 10 Access Violation

EDIT: Although yukim's workaround does work, I found that by downgrading to JDK 8u251 vs 8u261, the sigar lib works correctly. Windows 10 x64 Pro Cassandra 3.11.7 NOTE: I have JDK 11.0.7 as my...

Streamlabs Socket Ping Timeout

I was trying to use socket io client to connect to Streamlabs API using Node JS. I read their doc and tried to debug. After I run the code, the server doesn't respond to my socket request. I did...

I am not able to use RemBg Python Software. Help me

I was using RemBg Software provided in this Repository. Whenever I used it. It gives me the following error- Failed to import ahead-of-time-compiled modules. This is expected on first...

Azure cloud-init: Failed to install packages

I have a simple cloud-init file: #cloud-config package_upgrade: true packages: - symlinks - wget - rsync - git but it is failing for my Azure (log provided at the end). This is the first...

Getting "TypeError: must be real number, not NoneType" whenever trying to run write_videofile to a clip in moviepy

Example code: from moviepy.editor import * clip = VideoFileClip('video.mp4') clip.write_videofile('video2.mp4', fps=30) After showing the following messages, showing that the video is being built...

Lambda docker base - unable to install matplotlib

I'm using docker-backed lambdas with the AWS-provided base image for python3.8. It looks like it tries to build matplotlib from scratch, then fails out with gcc related errors. The repro is...