How to traverse file system in Python ? Suppose we have given below file structure in our system and we want to traverse all it’s branches completely from top to bottom ? 
How does os.walk() work in python ?
OS.walk() generate the file names in a directory tree by walking the tree either top-down or bottom-up. For each directory in the tree rooted at directory top (including top itself), it yields a 3-tuple (dirpath, dirnames, filenames).
- root : Prints out directories only from what you specified.
- dirs : Prints out sub-directories from root.
- files : Prints out all files from root and directories.
Python3
# Driver functionimport osif __name__ == "__main__": for (root,dirs,files) in os.walk('.', topdown=True): print (root) print (dirs) print (files) print ('--------------------------------') |
Output:
['gfg-article-deep-crawl-master (1)', '.ipynb_checkpoints'] ['t.pdf', 'Untitled.ipynb'] -------------------------------- ./gfg-article-deep-crawl-master (1) ['gfg-article-deep-crawl-master'] [] -------------------------------- ./gfg-article-deep-crawl-master (1)/gfg-article-deep-crawl-master ['check_rank'] ['rank_scraper.py', 'search-page (copy).html', '.gitignore', 'search-page.html', 'globals.py', 'requirements.txt', 'sel_scraper.py', 'README.md'] -------------------------------- ./gfg-article-deep-crawl-master (1)/gfg-article-deep-crawl-master/check_rank [] ['selenium.py', 'tools.py', '__init__.py', 'run_check.py'] -------------------------------- ./.ipynb_checkpoints [] ['Untitled-checkpoint.ipynb'] --------------------------------
