C/C++: any way to get reflective enums?

I've encountered this situation so many times... enum Fruit { Apple, Banana, Pear, Tomato }; Now I have Fruit f; // banana and I want to go from f to the string "Banana"; or I have...

TypeError: can only concatenate list (not "int") to list in python

I tried to run this code, but it showed an error: def shoot(aliens): s=[0]*1000 s[0]=0 s[1]=1 num=len(aliens) b=[[0 for m in range(1000)] for n in range(1000)] for j in...

Destroying clone destroys all clones

I want to destroy an instance of an object when it is within a particular circular area. The code is as follows: Collider2D[] overlap = Physics2D.OverlapCircleAll( ball.transform.position, ...

The specified value does not conform to the required format yyyy-MM-dd

I have a .Net MVC 5 application that is using Data Annotations, Entity-Framework Jquery 2.1.3 and Jquery UI 1.11.4. When I render an edit form with an input of type date using the UK format...

PHP export to excel doesn't display UTF-8

I am trying to export data to excel via a sql query. It works but doesn't display the language. I'm using SET CHARACTER SET UTF-8 but it doesn't work. Here is my code: $sql = "Select * from...

Getting ‘wrong’ page source when calling url from python

Trying to retrieve the page source from a website, I get a completely different (and shorter) text than when viewing the same page source through a web...

How can I change the color of text in Tkinter?

I'm having trouble figuring out how to change the color of text in my Tkinter GUI. I'm trying to get Label1 to be red, Label2 to be blue, Label3 to be brown and Label4 to be yellow but I can't...

Mysql real escape string not working for textarea apostrophe on insert getting syntax error

Whenever I'm trying to insert data that has an apostrophe in it, I receive a mysql syntax error Example text in textarea : I'm an alien will throw a syntax error when I try to insert in the...

Can the new csproj file structure be used with a ASP.NET Framework project?

The new .csproj format includes some significant improvements over the classic files, including tight integration with NuGet package management and significantly less-verbose structure. I want to...

Python Crash Course project: Object has no attribute

I'm trying to do the project from Python Crash Course and in the middle of the project I'm getting this error and I couldn't figure it out why, I've got alien_invasion.py, settings.py and ship.py...

error while loading shared libraries: libMagickCore-7.Q16HDRI.so.6

I have been trying to install ImageMagick in Ubuntu 16.04 to use with movie.py I have installed ImageMagick 7 but when I check the version from the command line convert --version It gives error...

Understanding withtracker() component in Meteor

I was trying to learn meteor and not very familiar with this pattern of HOC (it's meteor.js with react). I was going though their offical docs of tutorials. Here is what they did (You can click...

Understanding classes in Python Arcade

I'm new to programming and would appreciate guidance/ feedback. Below is a full working script: I've managed to get the player sprite to be controlled by WASD, the asteroid sprite is also now...

How do you run a python file in html

A while ago, I created some mini games with python. And now i'm working with html. I know how to link a css file to an html file. But I do not know how to link a python file to some words in an...

How to use magic bytes to identify files using python

I was given a problem that stated: We've extracted one of the alien zip files, it's a bunch of PNG files, but we think only one of them is valid. Use magic byte to determine which it is. Tip:...

Python Pygame ship move slowly when add alien in screen

I am trying to write a pygame game where you shoot the alien. first part I add the ship and bullet, it worked well, then I do the second part, add the alien onto the screen, but it some...

Ways to limit Phaser3 update rate?

In my Phaser3 game there is a global gameTick variable that is incremented every update. I am using this to spawn in enemies in my game every 100th update. Here is a simplifed example of what is...

How to test material ui autocomplete with react testing library

I am using material-ui autocomplete component and am trying to test it using react-testing-library Component: /* eslint-disable no-use-before-define */ import TextField from...

NameError: Name 'bullets' is not defined

I'm creating the alien invasion game in the python crash course book and i'm getting a name error that says bullets is not defined. So I changed 'bullets' to 'Bullet', which gives me an attribute...

Pygame: Alien Invasion Ship Image

Hi I am currently trying to create space invasion from chapter 12 in Python Crash Course. However I am stuck when trying to add the ship image to the game. Here is the code for Alien...

how do i fix Type '()' cannot conform to 'View'; only struct/enum/class types can conform to protocols

hi i'm making a game but i can't get an if state to work now i added the full code of the program (contentView.swift) hope its more useful to help me the code is made in xcode and the program is...

React / React-DOM package dependency conflict

I've been running into this error message every time I try to run npm update: : npm ERR! code ERESOLVE npm ERR! ERESOLVE unable to resolve dependency tree npm ERR! npm ERR! While resolving:...

Windows Terminal-PowerShell some glyph icons are not rendering when using Cascadia code PL

I am using windows terminal - PowerShell core 7. Cascadia code version - 2102.25 font face: cascadia code PL theme: Paradox, The glyph before 3.8.3 is not rendering. theme: Aliens, The glyph...

Cannot inner join two simple CTEs on a field with mixed data types in Snowflake

Problem I cannot inner join two simple CTEs in Snowflake. Terse error message does not show the way. What is wrong with my query? Bonus points: Why does my query work in SQL Server but not...

Missing OCI support when building GDAL

So I am building a DOTNET application that runs on Debian, and makes use of ogr2ogr to copy data from an oracle database towards an Postgres database. The problem is that I cannot get GDAL to...

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'scriptDataSourceInitializer' defined in class path resources?

I am new in learning spring boot web. I have started learning spring jpa data where I am using h2 database. I wanted to insert test data in it...

JFrog artifactory & Problem with MergeList /var/lib/apt/lists "(NewVersion2)" after adding pkg ported from RPM

I'm having a problem with translated RPMs borking an otherwise functional jFrog artifactory debian package repo. I'm rebuilding some RPMs as DEBs and pushing to my artifactory so I can install as...

Zigzag Movement of an object in Pygame

I want the aliens to move in a zigzag pattern. Currently they are moving straight down. The game is currently set sideways. This is the Alien class class Alien(Sprite): def...

How do I brute force a password protected zip file with a three digit password?

The problem is stated here: Sample Alien Zip file found at /tmp/alien-zip-2092.zip is password protected. We have worked out they are using a numerical three digit code. Brute force the Zip file...

ModuleNotFoundError: No module named 'pandas' | `pip install pandas` & `poetry add pandas` fail

I've been able to run and install pandas library before... Included is IDLE traceback, at bottom of post. I'm starting to believe there is more of an underlying serious issue with my setup. Really...