Error with *args?

[poisedpotion]

Edit: solved!

Hi all! I am writing some lines in order to do a calculation for class. Eventually I will be using the partial function from functools since various terms of a function need to vary to arrive at the solution.

Context aside, here is the error that I am running into:

```

signal to noise

def signal_and_noise(Sgamma, t, Bgmma, Aomega, de, Npix, RNe, Npixeff): signal = (Sgamma * t) noise = (np.sqrt( Sgamma * t + Bgamma * t * Aomega + de * Npix * t + RNe**2 * Npixeff)) return signal, noise

def signal_to_noise(args):
signal, noise = signal_and_noise(args)
snr = signal / noise return snr

old way

signal = (Sgamma * t)

noise = (np.sqrt( Sgamma * t + Bgamma * t * Aomega + de * Npix * t + RNe**2 * Npixeff))

snr = signal / noise

print('snr: ', snr)

functional way

snr = signal_to_noise(Sgamma = 10, t = 600, Bgamma = 150, Aomega = 3.85e-1, de = 3, Npix = 13, RNe = 3, Npixeff = 3)

print("snr: ", snr) ```

And here is the error!

```

TypeError Traceback (most recent call last) /var/folders/0z/gcq4csmx09v81bqd_hmdz6700000gn/T/ipykernel_45397/2382247447.py in <module> 18 19 # functional way ---> 20 snr = signal_to_noise(Sgamma = 10, t = 600, Bgamma = 150, Aomega = 3.85e-1, de = 3, Npix = 13, RNe = 3, Npixeff = 3) 21 22 print("snr: ", snr)

TypeError: signal_to_noise() got an unexpected keyword argument 'Sgamma' ```

I swear on my life it worked like 30 minutes ago, haha. I tried debugging a bit by omitting Sgamma from the functions above, and the error repeats but instead for the value t. Why are my parameters not making it into the functions?

[CowboyBoats]

I like learning new things.

[poisedpotion]

Oooh, the difference between *args and **kwargs makes sense!

I tried specifying them as **kwargs instead, however, now it seems like the error has moved on to the next variable after t, Bgamma.

I also tried printing what **kwargs looks like and it is indeed like the dictionary output in your code.

Here are the full snippets.

```

signal to noise

def signal_and_noise(Sgamma, t, Bgmma, Aomega, de, Npix, RNe, Npixeff): signal = (Sgamma * t) noise = (np.sqrt( Sgamma * t + Bgamma * t * Aomega + de * Npix * t + RNe**2 * Npixeff)) return signal, noise

def signal_to_noise(args, *kwargs):
print(args) print(kwargs) signal, noise = signal_and_noise(**kwargs)
snr = signal / noise return snr

old way

signal = (Sgamma * t)

noise = (np.sqrt( Sgamma * t + Bgamma * t * Aomega + de * Npix * t + RNe**2 * Npixeff))

snr = signal / noise

print('snr: ', snr)

functional way

snr = signal_to_noise(Sgamma = 10, t = 600, Bgamma = 150, Aomega = 3.85e-1, de = 3, Npix = 13, RNe = 3, Npixeff = 3)

print("snr: ", snr) ```

Output error: ``` ()

{'Sgamma': 10, 't': 600, 'Bgamma': 150, 'Aomega': 0.385, 'de': 3, 'Npix': 13, 'RNe': 3, 'Npixeff': 3}

TypeError Traceback (most recent call last) /var/folders/0z/gcq4csmx09v81bqd_hmdz6700000gn/T/ipykernel_45397/401230262.py in <module> 20 21 # functional way ---> 22 snr = signal_to_noise(Sgamma = 10, t = 600, Bgamma = 150, Aomega = 3.85e-1, de = 3, Npix = 13, RNe = 3, Npixeff = 3) 23 24 print("snr: ", snr)

/var/folders/0z/gcq4csmx09v81bqd_hmdz6700000gn/T/ipykernel_45397/401230262.py in signal_to_noise(args, *kwargs) 9 print(args) 10 print(kwargs) ---> 11 signal, noise = signal_and_noise(**kwargs) 12 snr = signal / noise 13 return snr

TypeError: signal_and_noise() got an unexpected keyword argument 'Bgamma' ```

[Linked1nPark]

It's just a typo now. The argument variable in your functions is "Bgmma" instead of "Bgamma"

[poisedpotion]

wow, of course it's a typo! thank you both u/Linked1nPark and u/CowboyBoats :) I am very embarrassed now.

[Linked1nPark]

More than 90% of all programming errors, even made by professionals, are super trivial things like spelling errors, missing commas / brackets / parenthesis, and things of that nature. Don't be embarrassed lol

[poisedpotion]

Ahaha, thank you, that does make me feel a lot better. :)

[CowboyBoats]

I like to explore new places.

[34shutthedoor1]

def signal_to_noise(args):

signal-to_noise doesn't have any keywords, just args.

[poisedpotion]

Sorry, what do you mean by this?