Python: Scan a specified directory and identify the sub directories and files
Python Operating System Services: Exercise-3 with Solution
Write a Python program to scan a specified directory and identify the sub directories and files.
Sample Solution:
Python Code :
import os
root = 'g:\\testpath\\'
for entry in os.scandir(root):
if entry.is_dir():
typ = 'dir'
elif entry.is_file():
typ = 'file'
elif entry.is_symlink():
typ = 'link'
else:
typ = 'unknown'
print('{name} {typ}'.format(
name=entry.name,
typ=typ,
))
Sample Output:
a dir b dir c dir d dir e dir f dir p.txt file q.txt file r.docx file s.xlsx file
Python Code Editor:
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Previous: Write a Python program to list only directories, files and all directories, files in a specified path.
Next: Write a Python program to check for access to a specified path. Test the existence, readability, writability and executability of the specified path.
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Python: Tips of the Day
Python: Cache results with decorators
There is a great way to cache functions with decorators in Python. Caching will help save time and precious resources when there is an expensive function at hand.
Implementation is easy, just import lru_cache from functools library and decorate your function using @lru_cache.
from functools import lru_cache @lru_cache(maxsize=None) def fibo(a): if a <= 1: return a else: return fibo(a-1) + fibo(a-2) for i in range(20): print(fibo(i), end="|") print("\n\n", fibo.cache_info())
Output:
0|1|1|2|3|5|8|13|21|34|55|89|144|233|377|610|987|1597|2584|4181| CacheInfo(hits=36, misses=20, maxsize=None, currsize=20)
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