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Get the list of all the files and directories

Function Use: To print all the directories in a folder/sub-folder or directory import os def get_list_or_dir(local_dir):     for dir_or_file in os.listdir(local_dir):         if os.path.isdir(dir_or_file):             path = os.path.join(local_dir, dir_or_file)             print(dir_or_file, 'This is a directory')             get_list_or_dir(path)         else:             print(dir_or_file) Path = os.getcwd() or define the path from where you need a file Function Call: get_list_or_dir(path)
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Find the largest palindrome made from the product of two 3-digit numbers.

Before starting to discuss how to program the above code. We should about palindrome first.

Palindrome is a number, word, sequence, list , arry and other which reads same from backward and forward.

 Palindrome Number: 121, 1111, 999, 58085
Palindrome Word: Madam, My Gym, Radar, wow.
Palindrome List: [1,2,3,2,1]

In this blogpost we are going to discuss the largest palindrome made from the product of two 3-digit numbers.

a = 100 # smallest 3 digit number
b = 999 #largest 3 digit number
palin = []  #list to keep palindrome number

for i in range(a, b+1):
for j in range(a, b+1):
num = str(i*j)
length = len(num)
count = 0
if length%2 == 0:
                    for inner in range(0, int(length/2)):
                        if num[inner] == num[len(num) - 1 - inner]:
                           count = count + 1
                    if count == length/2:
                        palin.append(int(num))


else:
                    length = length - 1
                    for inner in range(0, int(length/2)):
                        if num[inner] == num[len(num) - 1 - inner]:
                           count = count + 1
                    if count == int(length/2):
                        palin.append(int(num))

palin[len(palin)-1]

You should get the desired output from this program.

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