Returning list from a function in python

Question

Task :With dictionary write function frekv which returns occurrence of numbers

This is my code:

def frekv(n):
    b={}
    for i in n:
        if i in b:
             b[i] +=1
        else:
            b[i]=1
    return b

x = map(frekv,[5, 2, 4, 4, 3, 1, 3, 8]) 
print (list(x))

Result: {5: 1, 2: 1, 4: 2, 3: 2, 8: 1, 1: 1}

This is not a right way to return it, is there any way I could return that whole list.

return b needs to be indented. b is a dictionary, not a list. — Barmar
– Barmar, Commented Oct 14, 2020 at 17:05
Why are you calling map()? The function expects the argument to be a list, but you're calling it separately with each element of the list. — Barmar
– Barmar, Commented Oct 14, 2020 at 17:07
Should I make b=[] something like that to store number and number of occurances — Momo
– Momo, Commented Oct 14, 2020 at 17:08

Mushif Ali Nawaz · Accepted Answer · 2020-10-14 17:11:36Z

1

Probably you meant something like this:

def frekv(n):
    b={}
    for i in n:
        if i in b:
             b[i] +=1
        else:
            b[i]=1
    return b

x = frekv([5, 2, 4, 4, 3, 1, 3, 8]) 
print(x)

Output:

{5: 1, 2: 1, 4: 2, 3: 2, 1: 1, 8: 1}

answered Oct 14, 2020 at 17:11

Mushif Ali Nawaz

3,9163 gold badges21 silver badges33 bronze badges

Sign up to request clarification or add additional context in comments.

9 Comments

Barmar Over a year ago

He wrote in a comment "I need to use map"

Momo Over a year ago

With dictionary write function frekv which returns occurrence of numbers

Momo Over a year ago

I dont have to use x = map(frekv,[5, 2, 4, 4, 3, 1, 3, 8]) like this?

Momo Over a year ago

It is, this is my first time with python I was learning C before. I tought I have to use map() something to be good. Thank you

Mushif Ali Nawaz Over a year ago

@Momo No map() in Python is different from map() in C/C++. In Python, it is known as a dictionary.

|

Collectives™ on Stack Overflow

Returning list from a function in python

1 Answer 1

9 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

9 Comments

Your Answer

Sign up or log in

Post as a guest

Related