🔒 back with the coffee machine, but a new problem ;-;

[slate pagoda]

i want to do mathematical operations between two sub dictionaries in respective dictionaries

[granite edge]

@slate pagoda

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[slate pagoda]

https://paste.pythondiscord.com/3H4Q
here is the code
https://paste.pythondiscord.com/227Q
this is the file with the dictionaries

!pastebin

[granite edge]

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[slate pagoda]

the code has changed

[earnest trout]

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[slate pagoda]

damn ok

[rustic lotus]

Hmm, there seem to be a few issues already

[fierce sun]

I noticed this last time you posted your code. You can't reassign a global dictionary from a function

[slate pagoda]

wdym?

[slate pagoda]

oh, i just changed it

[fierce sun]

well, you start with 0 of all ingredients

shouldn't you start with something?

[slate pagoda]

that is the empty value i want to assign as the ingredients in "coffee" value put by user

come to think of it, i should do that first

[fierce sun]

left_ingredients = display_ingredients(MENU[coffee["ingredients"]])

well here, you're assigning left_ingredients to the result of display_ingredients()

why?

def display_ingredients(stuff):
    for key, value in stuff.items():
        print(f"{key} : {value}")

that function doesn't return anything

but also I'm not sure why you would want to do that anyways

[slate pagoda]

i was testing something out haha

[fierce sun]

we can't decipher what was just for testing and what is meant to be your actual logic

[slate pagoda]

i just wanted to check if it would display correctly

well, that out of the way

    print(f"you need this and that for {coffee}")
    left_ingredients = (MENU[coffee]["ingredients"])
    print(left_ingredients)```

this is the new code

it just assigns the left_ingredients to the coffee ingredients

what i want is that the resources to get subtracted by the coffee ingredients once i order it

[fierce sun]

it seems this function's sole responsibility should be displaying the ingredient cost. It shouldn't do anything to your actual resources

you can create another function for that

[slate pagoda]

no no

[fierce sun]

I don't know your exact requirements though

[slate pagoda]

alright

let me tell you whats going on

-first of, what i wanted the function to do is display the ingredients left in our left_resources dict after the coffee ingredients dict have been assigned to it subtracted by our resources dict

[exotic bane]

@fierce sun if you don’t mind could you take a look at my question after you’re done with this

[fierce sun]

I saw your question and that's outside my expertise, sorry

[exotic bane]

Alright thanks

[fierce sun]

I don't understand what the actual use of left_resources is?

why do you need it?

[slate pagoda]

i figured i needed a new variable to assign the ingredients from the "coffee" variable to then safely subtract our resources

[fierce sun]

you shouldn't need that there

that would happen in your main loop

[slate pagoda]

oh

so

how do i subtract my resources with the coffee ingredients?

[fierce sun]

using a loop

loop through the ingredients required for that drink choice

then access that same key in your resources and subtract that amount

you should first verify that you have all the necessary ingredients

[slate pagoda]

i hate loops 😭

[fierce sun]

practice them more and you won't hate them so much

[slate pagoda]

if statement in for loop?

[fierce sun]

yes, if the requirements are more than your resources, then you can return some sort of invalid message

[weary holly]

Loops are foundational. You'll need to use them pretty regularly for anything non-trivial. You should just work to practice them so you have a better understanding of them.

[fierce sun]

so you'll want to split up your logic here

[slate pagoda]

okay

[fierce sun]

first check if you have the required ingredients

[slate pagoda]

i understand

[fierce sun]

return True if you do or False if you don't

if True was returned, then you can subtract your ingredients

[slate pagoda]

alright

[fierce sun]

maybe see if you can work out the logic in a separate file, then try and integrate it into your main program

it makes testing quicker

[slate pagoda]

yeah im doing that rn

thanks guys

!close

[granite edge]

Python help channel closed

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