topic Re: Add parent directory name to output feature class with os walk in Python Questions

Add parent directory name to output feature class with os walk

KyleSmiley — Tue, 23 Aug 2022 03:32:02 GMT

Hello,

I have several folders under one big folder called "Counties". I'm attempting to use arcpy.da.walk to copy features. I'm trying to copy a shapefile called "Parcels" from each folder within the Counties folder. I run the code below and it works on one county folder, but then stops because the name of the shapefile is the same. So I now want to rename them in the same code block. Is this possble? I'd like to attach the name of the parent directory (which is the county name) so the output fc is "Parcels_Anderson", "Parcels_Bedford", etc.

Any help appreciated!

Here is the code:

workspace = "D:/Geodata/Cadastral/Parcels/Counties" outgdb = "D:/Geodata/Cadastral/Parcels/Parcels_features.gdb" walk = arcpy.da.Walk(workspace, datatype = "FeatureClass") for dirpath, dirnames, filenames in walk: for file in filenames: infc = os.path.join(dirpath, file) desc = arcpy.da.Describe(infc) outfc = os.path.join(outgdb, desc["baseName"]) arcpy.management.CopyFeatures(infc, outfc)

Re: Add parent directory name to output feature class with os walk

JohannesLindner — Tue, 23 Aug 2022 07:39:40 GMT

With the os.path module:

walk = arcpy.da.Walk(workspace, datatype = "FeatureClass") for dirpath, dirnames, filenames in walk: for file in filenames: infc = os.path.join(dirpath, file) outfcname = os.path.basename(file).split(".")[0] + "_" + os.path.basename(dirpath) outfc = os.path.join(outgdb, outfcname) arcpy.management.CopyFeatures(infc, outfc)

With the newer pathlib module:

from pathlib import Path walk = arcpy.da.Walk(workspace, datatype = "FeatureClass") for dirpath, dirnames, filenames in walk: for file in filenames: infc = Path(dirpath, file) outfcname = Path(file).stem + "_" + Path(dirpath).stem print(outfcname) outfc = Path(outgdb, outfcname) arcpy.management.CopyFeatures(str(infc), str(outfc)) # arcpy is old and doesn't know about Path

Re: Add parent directory name to output feature class with os walk

KyleSmiley — Tue, 23 Aug 2022 11:40:31 GMT

Hello,

Thank you for that! I had one last thing I was trying to do and forgot to mention. In addition to above, is there a way to walk for a specific string?

maybe something like:

for file in filenames:
for “Pacels” in filenames:

If filenames is “Parcels”

thanks in advance

and so on….

Re: Add parent directory name to output feature class with os walk

JohannesLindner — Tue, 23 Aug 2022 12:14:45 GMT

# if filename isn't equal to "Parcels.shp", go to next file for dirpath, dirnames, filenames in walk: for file in filenames: if file != "Parcels.shp": continue infc = os.path.join(dirpath, file) #... # if filename doesn't start with "Parcels", go to next file for dirpath, dirnames, filenames in walk: for file in filenames: if not file.startswith("Parcels"): continue infc = os.path.join(dirpath, file) #... # if filename doesn't contain "Parcels", go to next file for dirpath, dirnames, filenames in walk: for file in filenames: if not "Parcels" in file: continue infc = os.path.join(dirpath, file) #...

Re: Add parent directory name to output feature class with os walk

KyleSmiley — Tue, 23 Aug 2022 13:53:41 GMT

Good morning,

thanks a ton! It worked!

Kyle