Problems with arcpy findAndReplaceWorkspacePath?

[JohannesBierer]

Hello,

I can't find and replace a workspace path with the following script:

# -*- coding: cp1252 -*-
import arcpy, os

arcpy.env.overwriteOutput = True

mxd=arcpy.mapping.MapDocument(r"C:\temp_replaceDatasource\Detail.mxd")

class ReplaceDataSource(object):

    def __init__(self):

        self.mxd = mxd
        
    def DataSourcesReplace(self):
        
        for lyr in arcpy.mapping.ListLayers(self.mxd, ""):
            
            if lyr.isServiceLayer == 1:

                print lyr.name + " is a WMS Layer"      

            else:
                
                print lyr.name + " X " + lyr.dataSource

                newDataSource = lyr.dataSource.replace("R:\\", "\\\\{}\\{}\\".format("Client", "R$"))
                
                print newDataSource

                lyr.findAndReplaceWorkspacePath(lyr.dataSource, newDataSource)

                print lyr.dataSource
            
        mxd.saveACopy(r"C:\temp_replaceDatasource\Detail_WIBAS.mxd")
       
                         
if __name__ == '__main__':

    MyClass = ReplaceDataSource()
    MyClass.DataSourcesReplace()

The print statement looks ok but the path is not replaced - nothing happens with the path? Any ideas why?

output of the print statement

Maßnahmenflaeche X R:\SG-A\Karto\Bierer2020\Wiedemann_Erlen_Metten_Gründelbachniederung_Auftragskarte\Bearbeitung.gdb\data\Massnahme
\\Client\R$\SG-A\Karto\Bierer2020\Wiedemann_Erlen_Metten_Gründelbachniederung_Auftragskarte\Bearbeitung.gdb\data\Massnahme
R:\SG-A\Karto\Bierer2020\Wiedemann_Erlen_Metten_Gründelbachniederung_Auftragskarte\Bearbeitung.gdb\data\Massnahme

[DavidPike]

Maybe lyr.save()

[JohannesBierer]

Thank you David,

unfortunately I get an error message if I insert lyr.save() after the findAndReplace ... :

line 35, in DataSourcesReplace
lyr.save()
File "C:\Program Files (x86)\ArcGIS\Desktop10.4\ArcPy\arcpy\utils.py", line 182, in fn_
return fn(*args, **kw)
File "C:\Program Files (x86)\ArcGIS\Desktop10.4\ArcPy\arcpy\arcobjects\mixins.py", line 416, in save
assert hasattr(self, '_lyr'), gp.getIDMessage(89003, "No filename set.")
AssertionError: No filename set.

[DanPatterson · Accepted solution]

You are using arcmap 10.4.... there are lots of bugs noted on the tech support site, that you may want to look at  for example

Bug BUG-000096779 

Problem: Attempts to find and replace multiple data sources from enterprise geodatabase connections ... 

but there are more

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