Latest Questions

cv2.error: OpenCV (4.5.3) occurs in raspberry pi

I tried to test Picam with the code below with Raspberry Pie. import cv2 def main(): camera = cv2.VideoCapture(-1) camera.set(3,640) camera.set(4,4

Laravel Livewire image upload verification on edit form problem

I have a product page with an image upload form built with Livewire. when i revisit the page to update information, the page will only submit if I also pass thr

how to use Turtle graphics in pycharm 3.6?

This is the output it shows Traceback (most recent call last): File "/home/escenic/PycharmProjects/pythonProject Turtle/main.py", line 1, in import turtle File

Is there anything like a "WAIT" function in Fortran?

I would like to create a Fortran program that staggers text to create a sort of rhythm. Is there any way to do this within the Fortran 90 standard?

How to delete certain number from a list in list using the index in python?

I have a list in a list, and I am trying to delete the third number of each sublist, but every time I am getting an error TypeError: list indices must be intege

Laravel Livewire image upload verification on edit form problem

I have a product page with an image upload form built with Livewire. when i revisit the page to update information, the page will only submit if I also pass thr

How do I know which endian to use in struct.unpack() when converting hexadecimal string to float?

I have data in form of hexadecimal string and I convert it to float as: import struct, binascii a = '0X437A1AF6' x = struct.unpack('>f', binascii.unhexlify(s

Is there anything like a "WAIT" function in Fortran?

I would like to create a Fortran program that staggers text to create a sort of rhythm. Is there any way to do this within the Fortran 90 standard?

Tkinter- unable to bind image with an event [duplicate]

I have created a chat app where i want to share images and pictures as well and i am displaying picture on the chat box every thing is going r

Android selector layout of a menu item not working on a checkable item

I am trying to make a favourite item in the menu that can display a hollow heart when unchecked and a solid one when checked However the selector approach is no

stale element reference: while trying to access a drop down button

Have been trying to access the drop down button element using selenium, the page asks for a pincode on opening and after entering it and clicking ok it refreshe

When I set up a react native project, it gives a MODULE_NOT_FOUND error, what is the reason?

/it says chalk not found how do i fix this/ node:internal/modules/cjs/loader:361 throw err; ^ Error: Cannot find module 'C:\Users\sefal\Desktop\react-native\den

stale element reference: while trying to access a drop down button

Have been trying to access the drop down button element using selenium, the page asks for a pincode on opening and after entering it and clicking ok it refreshe

Laravel weird issue: query return data with DB::table() but not with model::

I found an issue when delete some data, so I isolated the code Route::get('v1/testapi', function (Request $request) { return [ DB::table('attendances')->

JUnit Mockito: Testing a Static Method and Calling Another Stubbed Static Method Inside Not Working

class A { public static int f1() { return 1; } public static int f2() { return A.f1(); } } class ATest { @Test void testF2()

Android selector layout of a menu item not working on a checkable item

I am trying to make a favourite item in the menu that can display a hollow heart when unchecked and a solid one when checked However the selector approach is no

JUnit Mockito: Testing a Static Method and Calling Another Stubbed Static Method Inside Not Working

class A { public static int f1() { return 1; } public static int f2() { return A.f1(); } } class ATest { @Test void testF2()

Creating process with elevated privileges using CreateProcessAsUserW from system service

I'm trying to launch a process from a system service using the token handle of the currently active user with elevated privileges (if user is in admin. group).

Dynamic generated form input wit same class validation doesn't' work

I have a form that is dynamically generated on the click of add button. Say <input type="text" id="date" class="date"/> <button id="btn">Add+</bu

Token not received after redirecting from login

I am trying to use AD FS as Identity provider with react-native-azure-auth library. It works fine with iOS, redirects and returns token back from the login scr

Why can't I declare a position in my multidimensional array?

I'm trying to do a 3d version of an L-Syste. But I cannot declare elements in my multidimensional array. When I debug, I see that the element stays the same. I

Token not received after redirecting from login

I am trying to use AD FS as Identity provider with react-native-azure-auth library. It works fine with iOS, redirects and returns token back from the login scr

Pentaho spoon search and replace especial character in rows

I have a csv file with mime type US-ASCII and one column in the dataset look like this: id V_name 210001 cha?ne des Puys 210030 M?los 213004 G?ll? 213021 S?pha

Laravel weird issue: query return data with DB::table() but not with model::

I found an issue when delete some data, so I isolated the code Route::get('v1/testapi', function (Request $request) { return [ DB::table('attendances')->

SQL statement: SELECT data based on a condition

I want to base my select query on a condition so it is something like: --THE LOGIC TO BE IMPLEMENTED IF ( SELECT OrderPlacementDate from SellOrders WHERE SellOr

I am confused about the purpose of jwt and how does it work? hope I will get an actual answer. Thanks

I am new at programming. recently I am learning jwt. but I am confused about the purpose of jwt and how does it work? hope I will get an actual answer. Thanks.

Dynamic generated form input wit same class validation doesn't' work

I have a form that is dynamically generated on the click of add button. Say <input type="text" id="date" class="date"/> <button id="btn">Add+</bu

Powershell Progressbar partially hidden

I have a progress bar that is run when a job is done. Unfortunately, the progress bar is partially hidden. This is the code: Add-Type -AssemblyName System.Windo

Pentaho spoon search and replace especial character in rows

I have a csv file with mime type US-ASCII and one column in the dataset look like this: id V_name 210001 cha?ne des Puys 210030 M?los 213004 G?ll? 213021 S?pha

Webpack Source Map Export Compiled JS

I was using webpack 3, there was no hot reload issue and then I upgraded to webpack 5. Webpack version: ^5.50.0, React version: 17.0.2 Webpack source map doesn'