Solution Exercise 66: extract the list of integers from a list of numbers

Exercise 66

Write a Python algorithm to extract the list of integers from a list of numbers. Example: if

L = [2.5 , 11.54 , 3 , 7.35 , 5 , 6.5 , 9]

, the algorithm returns the list

[3, 5, 9]

Solution

def extractInt (L):
      # initialization of the integer list
      listInt = []
 
      # iterate over the elements of L and extract the integers
      for x in L:
            if type (x) == int:
                  listInt.append (x)
      return listInt
 
# Example
L = [2.5, 11.54, 3, 7.35, 5, 6.5, 9]
print (extractInt (L)) # the output is: [3, 5, 9]