problems with layer.findAndReplaceWorkspacePath

Discussion created by jhchan69 on May 11, 2012
Latest reply on Jun 12, 2012 by jhchan69
I have a bunch of .lyr files that point to a directory that's been moved.
I'm trying to programmatically re-link them to the new location (hopefully to a UNC location like \\server\folder instead of W:\folder)

so my code looks like this:
import arcpy, sys, os, fnmatch

dir = sys.argv[1]   # directory to search
old = sys.argv[2]   # old feature class path/name to replace
new = sys.argv[3]   # new feature class path/name

# go to the directory and get a list of the files 
filelist = os.listdir(dir)

# get that file list and for each name....
for filename in filelist: 
    # look for any .lyr files
    if fnmatch.fnmatch(filename, '*.lyr'):
        arcpy.AddMessage(filename + " is a layer file")
        # create a layer object from the .lyr file
        lyrfile = arcpy.mapping.Layer(dir + '\\' + filename)
        arcpy.AddMessage(filename + " is now a layer object")
        lyrfile.findAndReplaceWorkspacePath(old, new)
        arcpy.AddMessage("fixed data source")
del filename, filelist, dir, old, new, lyrfile        

but when I run it - I get messages saying that something is happenning (all my addMessages). But when it comes to actually re-mapping my datasource, well, nothing happens. When I re-add the .lyr files to my mxd and check the data source, it doesn't change. It's still the old datasource.

any help???