BubbleGum | Animated GradientView library for android developers | Animation library

I have to use codepen to write up a website and then get my code to pass the W3 validator. The problem is that, whichever way I try to check the code, it comes up with different error messages.

When I copy and paste the whole code into W3, it says that I need and the other things like that (that I'm not allowed to type into codepen, without getting an error message on that end).

However, when I go into debug mode and put the URL directly into W3, it comes up with a load of errors that don't exist- the code it specifies isn't anywhere in my code.

Has anyone else had issues getting codepen validated by w3?

edit: codepen is https://codepen.io/johng003/pen/rNjrrOb

I am currently attempting to programm a small game. An enemy is supposed to chase the player, the actual chasing is not implemented yet. I still need to figure out how to do that, but that's not the question. I have made it so that the player returns to the start point once they collide with the enemy. In addition to that, a text 'Game over' is supposed to appear. The function for that is called at the end of the game loop and while the text appeared briefly(it actually only appeared once, I have tried it multiple times), it does not stay. I was planing on making it appear and then disappear after a few seconds so that the player can play again, but I'm not sure why it disappears instantly. If this is the wrong place to post this, please tell me, I will delete this post. This is my code, would be amazing if somebody could help me out:

I want to use a sidebar when following links using React Route but when I refresh the page the content disappears

Lesson.jsx

I have a screen where I use this :

'''There's a minor bug in this Space Invaders Code, everything works fine and well at the start , until all of a sudden sometimes, mostly at the end of the game, some of the enemy spaceships suddenly moves extremely fast and wayy faster than the other enemies, but follows the same path as the others..If I manage to shoot down the fast spaceships, more of them start moving at the very same fast speed, how it that??I have attached the code down below:'''

How do I remove the

My text file is like below.

I have a Pandas Dataframe where I need to replace the values in a column if they are within a list of words.

There's too many records, so I can't do it manually.

I imagine that I could use a dictionary for it, or a list, but I don't know how to implement it.

Say my dataframe is df = [[Client], [Product], [Amount]]

And that the values would be

I'm having this issue where using agg(['sum', 'count']) is outputting "subcolumns" rather than new, exclusive columns.

This is a problem because I need to export the results to a csv for salesforce upload, and the subcolumns are messing up the formatting.

So, first there is this dataframe: