this is my code to generate a "flat" iteration of a file tree, without doing recursion. it can also be downloaded here, here, and here.
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from __future__ import division, generators, print_function, with_statement
r"""Implement and demonstrate a flat file tree generator.
file flattree.py
purpose implement and demonstrate a flat file tree generator
email 10054452614123394844460370234029112340408691
The intent is that this module and command works correctly under both
Python 2 and Python 3. Please report failures or code improvement to
the author.
"""
#-------#-------#-------#-------#-------#-------#-------#-------#-------#-------#
__license__ = r"""
Copyright © 2018, by Phil D. Howard - all other rights reserved
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA, OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE, OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
The author may be contacted by decoding the number
10054452614123394844460370234029112340408691
(provu igi la numeron al duuma)
"""
#-------#-------#-------#-------#-------#-------#-------#-------#-------#-------#
from os import environ, listdir, lstat, path
from stat import S_ISDIR as isdir
from sys import argv, stderr, stdin, stdout, version_info
if version_info.major < 3:
strs = (bytearray,str,unicode)
if version_info.major > 2:
strs = (bytes,bytearray,str)
#-------#-------#-------#-------#-------#-------#-------#-------#-------#-------#
def flat_tree(t,sort=False):
if not isinstance(t,strs):
raise TypeError
dosort = bool(sort)
q = [ ['',[t]] ]
while q:
b = q[-1][1]
if b:
n = b.pop(0)
z = '/'.join([x[0] for x in q[1:]]+[n])
try:
s = lstat(z)
except:
s = None
if s and isdir(s.st_mode):
try:
l = listdir(z)
except:
l = []
if dosort and l:
l = sorted(l)
yield (z,s,l,)
q.append([n,l])
else:
yield (z,s,None)
else:
del q[-1]
#-------#-------#-------#-------#-------#-------#-------#-------#-------#-------#
def main(args):
recs = []
for arg in args[1:]:
n = 0
for p,s,f in flat_tree(arg,sort=True):
print(path.normpath(p))
n += 1
print('there are',n,'files',file=stderr)
return 0
#-------#-------#-------#-------#-------#-------#-------#-------#-------#-------#
if __name__ == '__main__':
if version_info.major < 3:
BrokenPipeError = IOError
try:
result = main(argv)
stdout.flush()
except BrokenPipeError:
result = 99
except KeyboardInterrupt:
print('')
result = 98
if result is 0 or result is None or result is True:
exit(0)
if result is 1 or result is False:
exit(1)
if isinstance(result,str):
print(result,file=stderr)
exit(2)
try:
exit(int(result))
except ValueError:
print(str(result),file=stderr)
exit(3)
except TypeError:
exit(4)
#-------#-------#-------#-------#-------#-------#-------#-------#-------#-------#
# 111111111122222222223333333333444444444455555555556666666666777777777788
#23456789012345678901234567890123456789012345678901234567890123456789012345678901
#=======#=======#=======#=======#=======#=======#=======#=======#=======#=======#
# EOF
Tradition is peer pressure from dead people
What do you call someone who speaks three languages? Trilingual. Two languages? Bilingual. One language? American.
What do you call someone who speaks three languages? Trilingual. Two languages? Bilingual. One language? American.
