Solution Exercise 88 *: python algorithm which determines the list of integers within a list

Exercise 88 *

Given a list L, write a python algorithm which returns the list of digits contained within the elements of the list L. Example if L = ["Python3", 91, "Java2", 95], the algorithm returns the list [3, 9, 1, 2, 9, 5]

Solution

L = ["Python3", 91, "Java2", 95]
# initialization of the list of digits
list_digit = []

# browsing through all elements of the list L
for word in L:
     word = str(word)
     # browsing through all elements of the 'word' string and search for the entire elements
     for x in word:
          if x.isdigit ():
               x = int (x)
               list_digit.append (x)

print (list_digit)
# The output is: [3, 9, 1, 2, 9, 5]