rope | a python | Parser library

delFromInventory() is very similar to addToInventory(). You need to check whether the key exists within the dictionary and if it does not you can't remove anything, obviously. If it does, we need to check if the count would be 0 (or less than 0 if we were to have an element with count 0 in the dictionary) after deletion and if that's the case we can remove that key from the inventory because the count is (or already was) 0. In all other cases we can just decrement the count by 1.

Instead of assigning shared pointer, user reset method.

You can add

Method 1 out of the options given is best.

None of them would fail WCAG as such.

However as you have pointed out 2 and 3 result in duplication of effort for keyboard users and links to the same location having different names, which is not a fail under any success criterion but is highly recommended.

Yes in scenario 1 and 4.

All 4 of the examples given would "pass" WCAG. However they offer very different experiences.

So the question is what things are we considering for accessibility?

The first is Keyboard operability. Examples 2 and 3, as you pointed out result in duplication of focus stops for the same item. So we should avoid them.

The second thing is link purpose. Yet again examples 2 and 3 are not great here as we have 2 links to the same place on the same page that have different accessible labels / text that assistive tech will use.

So we can rule out options 2 and 3 for best practices.

So what about options 1 and 4?

Well as the items are located within a hyperlink we want the link text (the accessible name for those links) to be descriptive of the product page we are going to visit.

As such option one would read: "link: Squeaky Fox Dog Toy" and the second link would read "link: (image) Red fox stuffed dog toy with white braided rope arms, Squeaky Fox Dog Toy"

The second option results in duplication of information so is not as desirable as the first option.

So we land on option 1.

The only consideration you now have is whether that link text describes the product sufficiently. Now if you sold multiple dog toys (different product types) then you need text that describes them as such i.e. "plastic dog toys" and "fluffy dog toys".

If you sell different coloured products and they all had their own page (so you don't have a colour picker on the end page, they are listed as separate items) then you would need to describe the colour there too. "Red fluffy dog toy", "blue fluffy dog toy".

Essentially you need to provide enough information that each product link is easily identifiable as to where it leads (the purpose of the link itself).

This is where judgement comes into play, provide enough information to describe the product generally in a unique way on the page, not so much information that browsing that page becomes problematic due to 100 products with 200 word link text.

So in the example given the "balance" would be something like "Red fox stuffed dog toy", and then describe the appearance in far more detail on the product page, wither in the description or in the product image alt attributes.

It is worth noting that the last option for a product page is no text at all. Just an image inside a link. The following is also valid HTML and accessible as the alt text will be used as the link text (not if an image contains any text at all that should all appear in the alt attribute).

Vuex File

If you look at the django-heroku repository on GitHub I think you'll find that it has been abandoned. It has a banner saying

This repository has been archived by the owner. It is now read-only.

and has not had a new commit on the master branch since October, 2018.

The heroku-on-django library aims to be an updated replacement for django-heroku:

This has been forked from django-heroku because it was abandoned and then renamed to django-on-heroku because old project has been archived.

It is also somewhat stagnant (the most recent commit to master at the time of writing is from October, 2020) but it should work better than django-heroku.

In either case, make sure to put this at the bottom of your settings.py as indicated in the documentation:

I'm not sure why are you trying to burn link in order to mint and nft but first check if the link code does not have a require that check if the destination address is the burn address if it has then burn the link is not possible and you should use any other erc20 maybe your own erc20, also your contract probably does not have any link and if you want to transfer the link from the user you should do this in the contract paymentToken.transferFrom(msg.sender,destinationAddress,amount) and if the user previously approve your contract you will able to send the tokens, and i suppose that the purpose of the allowAccess function is to make the user approve the contract to move the tokens that will never work, the approve function let's anyone that call it approve any address to move an amount of tokens, the thing is that to know who is approving to let other to move the tokens the function use msg.sender to explain how this work take a look at this example

let's say that your contract is the contract A and the link contract is the contract B

now a user call allowAccess in the contract A, so here the msg.sender is the user because they call the function

now internally this function call approve on contract B, here the contract A is the msg.sender, because the contract is who call the function

so what allowAccess is really doing is making the contract approving itself to move their own tokens that I assume it doesn't have

OpenGL is a state engine. Once a state has been set, it is retained until it is changed again, even beyond frames. Therefore, you need to set the polygon mode GL_FILL before rendering the solid geometry: