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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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Project Euler 17: Number Letter Counts

The Problem:

 If the numbers 1 to 5 are written out in words: one, two, three, four, five, then there are 3 + 3 + 5 + 4 + 4 = 19 letters used in total.
If all the numbers from 1 to 1000 (one thousand) inclusive were written out in words, how many letters would be used?

NOTE: Do not count spaces or hyphens. For example, 342 (three hundred and forty-two) contains 23 letters and 115 (one hundred and fifteen) contains 20 letters. The use of "and" when writing out numbers is in compliance with British usage.

The Solution:

This problem requires you to have some knowledge about a library "num2words"; specifically created to convert numbers into words into python.

Convert numbers into words in Python

>>> from num2words import num2words
>>> num2words(3)
'three'
>>> num2words(200)
'two hundred'

# The Program 

>>> count = 0
>>> for i in range(1, 1001):
y = num2words(i)
for i in y:
if i == ' ':
count = count
elif i == '-':
count = count
else:
count = count + 1
>>> count
21124


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