[Tutor] Partly OT: order of renaming files and directories

[Bernard Lebel]

Hello,

I'm creating a script that will rename directories and files (hence
the regular expression thing I asked about last week). I just wanted
to ask if there is a recommended order to rename stuff, because I want
to avoid any potential problem.

What I mean:
I traverse some areas of the file server with os.walk(). If I want to
rename a directory, is it better that I rename the directory curretly
being visited, or should I iterate the files and directories in the
current directory and rename them instead?

To summarize.

Renaming the current directory:


# Iterate roots
for sRoot in aRoots:
	
	print '\nWalking root %s...\n' % sRoot
	
	# Walk-down root
	for sDir, aDirs, aFiles in os.walk( sRoot, True ):
		
		sNewDir = oReL.sub( r'\g<1>0\2', sDir )
		if sNewDir != sSubDir: print '%s changed to %s' % (sDir, sNewDir)
		else:
			sNewDir = oReQ.sub( r'\g<1>0\2', sDir )
			if sNewDir != sSubDir: print '%s changed to %s ' % (sDir, sNewDir)
	
	print 'Root %s DONE.' % sRoot



Renaming the content of the current directory:


# Iterate roots
for sRoot in aRoots:
	
	print '\nWalking root %s...\n' % sRoot
	
	# Walk-down root
	for sDir, aDirs, aFiles in os.walk( sRoot, True ):
		
		for sSubDir in aDirs:
			sNewSubDir = oReL.sub( r'\g<1>0\2', sSubDir )
			if sNewSubDir != sSubDir: print '%s changed to %s' % (sSubDir, sNewSubDir)
			else:
				sNewSubDir = oReQ.sub( r'\g<1>0\2', sSubDir )
				if sNewSubDir != sSubDir: print '%s changed to %s ' % (sSubDir, sNewSubDir)
	
	print 'Root %s DONE.' % sRoot


Thanks
Bernard