Tool script multi-value parameter, Input raster does not exist

Question

How do I adjust my script to accept a raster with a filename like the example below when used as a tool in ArcGIS with MulitValue set to Yes?

"008. STUDY AREA MAP_rectified_NAD83_Z12.tif"

With files named in the same way as above the script works in python with two rasters separated with a semi-colon(;).

It also works as a tool when the input parameter (Raster Dataset) has MultiValue set to no.

If I use input file with more conventional names (just numbers and letters) the MultiValue option works correctly.

However, with MultiValue set to yes it fails at the first GetRasterProperties_management task with:

ERROR 000865: [filepath\filename] does not exist

Unfortunately it is not possible to rename the files. Script below;

ScannedMaps = r'C:\ArcGIS\GeoRefCentrepoint\Data\010. STUDY AREA MAP1_rectified_NAD83_Z12.tif;C:\ArcGIS\GeoRefCentrepoint\Data\009. STUDY AREA MAP2_rectified_NAD83_Z12.tif'

        for image in ScannedMaps.split(;):
            print 'Starting: ',image
            arcpy.AddMessage('Starting: '+image)
            #Capture extent of georeferenced scanned map
            MaxX = float(arcpy.GetRasterProperties_management(image,"RIGHT").getOutput(0))
            MinX = float(arcpy.GetRasterProperties_management(image,"LEFT").getOutput(0))
            MaxY = float(arcpy.GetRasterProperties_management(image,"TOP").getOutput(0))
            MinY = float(arcpy.GetRasterProperties_management(image,"BOTTOM").getOutput(0))
            print '- Extent captured'
            arcpy.AddMessage('- Extent captured')

            #Calculate centre point
            centreX = (MaxX + MinX)/2
            centreY = (MaxY + MinY)/2
            print '- Centre point calculated'
            arcpy.AddMessage('- Centre point calculated')

            #Add centre point to feature, change file path, populate fields
            NewFilePath = image.replace('S:','\\\UNCNAME\FOLDER\SUBFOLDER')
            FileName = os.path.basename(image).split('.')[0]
            NewRow = [(FileName, NewFilePath, KeyWords, (centreX,centreY))]
            cursor = arcpy.da.InsertCursor(Feature,['DOCUMENT_NAME','URL','KEY_WORDS','SHAPE@XY'])
            print '- Attributes created'
            arcpy.AddMessage('- Attributes created')
            for data in NewRow:
                cursor.insertRow(data)
                print '- File:',FileName,'added successfully\n'
                arcpy.AddMessage('- File '+FileName+' added successfully')
            del cursor
    print 'Complete'

Update -

Output of when the script runs successfully from in PythonWin, included print ScannedMaps statement as requested:

Starting tool:

ScannedMaps = C:\ArcGIS\GeoRefCentrepoint\Data\010. MAP_rectified_NAD83_Z12.tif;C:\ArcGIS\GeoRefCentrepoint\Data\009.  MAP_rectified_NAD83_Z12.tif
Starting:  C:\ArcGIS\GeoRefCentrepoint\Data\010. MAP_rectified_NAD83_Z12.tif
- Extent captured
- Centre point calculated
- Attributes created
- File: 010 added successfully

ScannedMaps = C:\ArcGIS\GeoRefCentrepoint\Data\010. MAP_rectified_NAD83_Z12.tif;C:\ArcGIS\GeoRefCentrepoint\Data\009. MAP_rectified_NAD83_Z12.tif
Starting:  C:\ArcGIS\GeoRefCentrepoint\Data\009. MAP_rectified_NAD83_Z12.tif
- Extent captured
- Centre point calculated
- Attributes created
- File: 009 added successfully

Complete

Answer 1

If the name has spaces, ArcGIS will wrap it in single quotes.

Use something like

rasters = [f.strip("'") for f in rasters.split(";")]