how to pass parameter in a function which is a value of dictionary in python

Question

i have two dictionary

dict1 = {
    "abc": sm.xyz.cdd(),
    "def": sm.acf.fdr(),
    "ghi": sm.rty.qsd(),
}

I need to create a function that takes 2 parameters 1st is the key of dict1 and 2nd parameter would be a string and i want the output

fun("abc", "log")

# then this must be my output
sm.xyz.cdd("log")

This is one dictionary... Your dict1 should be dict1={"abc":sm.xyz.cdd, ...} (no parenthesis), otherwise you already calling a function. As for the function, what have you tried so far to implement it? — Yevhen Kuzmovych
– Yevhen Kuzmovych, Commented Nov 2, 2022 at 10:55

thestarwarsnerd · Accepted Answer · 2022-11-02 12:34:53Z

2

As was mentioned in a comment, you can remove the parentheses when defining the dictionary to store the functions as a value associated with a key. Then you can write a simple function that accesses the function in the dictionary and returns the output with the given input:


def fun(dictKey, funInput):
    
    return dict1[dictKey](funInput)

And then you can just call the function with fun("abc","log").

edited Nov 2, 2022 at 12:34

answered Nov 2, 2022 at 11:01

thestarwarsnerd

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1 Comment

ShlomiF Over a year ago

This is the simple, minimalistic, and "correct" answer

Tenobaal · Accepted Answer · 2022-11-02 11:00:17Z

0

dict1={
  "abc":sm.xyz.cdd,
  "def":sm.acf.fdr,
  "ghi":sm.rty.qsd,
}
def fun(key, *args, **vaargs):
    dict1[key](*args, **vaargs)

edited Nov 2, 2022 at 11:00

answered Nov 2, 2022 at 10:57

Tenobaal

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6 Comments

Yevhen Kuzmovych Over a year ago

You forgot the return. And **vaargs are keyword arguments while OP passes arguments as positional arguments (*args). To be more general you should have both - (*args, **kwargs)

Tenobaal Over a year ago

I am so sorry, I forgot it, fixed it now, thanks

priston Over a year ago

in this my string that i am passing is args or vaargs?

Yevhen Kuzmovych Over a year ago

@priston it is going to be in args list

priston Over a year ago

i didn't understand how to call it how will i call fun("abc","log")

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