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Python

Posted by vincent juma
vincent juma
1,159 Points

Hi there, am having trouble with the code below and it seems quite right. Kindly help me with it.

I am to create function named combiner that takes a single argument, which will be a list made up of strings and numbers.

And it should return single string that is a combination of all of the strings in the list and then the sum of all of the numbers. For example, with the input ["apple", 5.2, "dog", 8], combiner would return "appledog13.2". And the instruction says, "Be sure to use isinstance to solve this as I might try to trick you."

instances.py 
def combiner(mixed_list):
    mixed_string = ""

    for item in mixed_list:
        mixed_string.append(item) 

    return mixed_string

2 Answers

Kuanyshbek Ospanov
Kuanyshbek Ospanov
17,416 Points
Kuanyshbek Ospanov
Kuanyshbek Ospanov
17,416 Points

First, create variables that will contain strings and numbers. After that use this if statement:

if isinstance(item, str):
    list_strs += item
else:
    ist_nums += item

Then combine them and return

return list_strs + str(list_nums)
vincent juma
vincent juma
1,159 Points

Thanks

KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,971 Points
KRIS NIKOLAISEN
KRIS NIKOLAISEN
54,971 Points

You have a good start but you are missing a few things. You should review isinstance first. You can do that here

In your for in loop you need to check if item is a string or a number using isinstance. If it is a string append it to your string variable. If it is a number add it to a sum variable. Note: you should check for both integer and float. Once complete return the combined string variable and sum variable.

vincent juma
vincent juma
1,159 Points

Woow, this was very helpfull. Thanks Kris