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Python

Ricardo Franco
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Ricardo Franco
Data Analysis Techdegree Student 16,258 Points
Posted by Ricardo Franco
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Ricardo Franco
Data Analysis Techdegree Student 16,258 Points

instances coding challenge

I am at a loss...am I supposed to return first a concatenation of the string list elements, followed by the addition of the numerical elements and then combine it into a single string. That feels like a lot of steps and I get the feeling this challenge was not meant of to be that deep. Please assist. Thanks in advance.

instances.py 
def combiner(list):
    list = isinstance(["apple", 5.2, "dog", 8], (str, float))
    return list

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

There are several steps, but if you break it down it's not so bad:

  • create variables for collecting strings and for summing numbers
  • first, write a loop that will iterate through the list one item at a time
  • test each item using "isinstance" to determine what it is
  • if it's a string, concatenate it to the end of the collection string
  • if it's a number, add it to the sum
  • after the loop is over, convert the sum to a string and concatenate on the string collection
  • finally return the big string

Also, check the syntax for calling a method (like "isinstance").