(python) recursively remove capitalization from directory structure?

Question

uppercase letters - what is their point? all they give you is rsi.

I would like to remove as much capitalization as possible from my directory structure. how would I write a script for this in python?

it must recursively analyze the specified directory, identify the file / folder names with capital letters and rename them in lower case.

Answer 1

os.walk Great for creating recursive files with the file system.

import os

def lowercase_rename( dir ):
    # renames all subforders of dir, not including dir itself
    def rename_all( root, items):
        for name in items:
            try:
                os.rename( os.path.join(root, name), 
                                    os.path.join(root, name.lower()))
            except OSError:
                pass # can't rename it, so what

    # starts from the bottom so paths further up remain valid after renaming
    for root, dirs, files in os.walk( dir, topdown=False ):
        rename_all( root, dirs )
        rename_all( root, files)

- , , "/A/B", "/A". , , /A /a, /A/B. , /A/B /A/b, .

os.walk , () .

Answer 2

script:

#!/usr/bin/python

'''
renames files or folders, changing all uppercase characters to lowercase.
directories will be parsed recursively.

usage: ./changecase.py file|directory
'''

import sys, os

def rename_recursive(srcpath):
    srcpath = os.path.normpath(srcpath)
    if os.path.isdir(srcpath):
        # lower the case of this directory
        newpath = name_to_lowercase(srcpath)
        # recurse to the contents
        for entry in os.listdir(newpath): #FIXME newpath
            nextpath = os.path.join(newpath, entry)
            rename_recursive(nextpath)
    elif os.path.isfile(srcpath): # base case
        name_to_lowercase(srcpath)
    else: # error
        print "bad arg: " + srcpath
        sys.exit()

def name_to_lowercase(srcpath):
    srcdir, srcname = os.path.split(srcpath)
    newname = srcname.lower()
    if newname == srcname:
        return srcpath
    newpath = os.path.join(srcdir, newname)
    print "rename " + srcpath + " to " + newpath
    os.rename(srcpath, newpath)
    return newpath

arg = sys.argv[1]
arg = os.path.expanduser(arg)
rename_recursive(arg)