Creates nested directories structure. May come handy in testing utilities recursive path-traversing algorithms, their recursion limits as well as during preparation of Zip Bombs.

nested_dirs.py

#!/usr/bin/python

import os, sys

g_ABC = 0

def recurrent_mkdir( path, lvl, dirs ):
	if lvl == 0:
		return

	for a in range(dirs):
		s = ''
		if g_ABC == 0:
			s = `a`
		else:
			# 65 in decimal is 'A'
			s = chr(int(65)+a)
		p = os.path.join( path, s)
		try:
			os.mkdir( p )
		except:
			pass
	
		recurrent_mkdir( p, lvl-1, dirs)


if __name__ == '__main__':
	if len( sys.argv) == 1:
		print '\nUsage: numberizer.py path_for_struct [nesting_lvl][abc]\n'
		print '\tpath_for_struct - place where the structure will be'\
			'created\n\tnesting_lvl - the deepest directory level'
		print '\tabc - pushes to name directories in alphabet letters instead of numbers'
		sys.exit(0)
	
	path = sys.argv[1]
	lvl = 6
	if len(sys.argv) > 2:
		if int(sys.argv[2]) > 0:
			lvl = int(sys.argv[2])
		if len(sys.argv) > 3:
			g_ABC = 1
	
	try:
		os.chdir(path)
	except:
		print '[!] Input path is not accessible !'
		sys.exit(0)

	no = lvl**lvl + lvl
	print '\n\t[+] Working directory: \''+os.getcwd()
	print '\t[+] Have to make '+ `no`
	raw_input( '\tHit enter to engage...')
	recurrent_mkdir( path, lvl, lvl)