Fix path interpretation for landscape layers. (#141)

StreamCat was failing with a path to categorical image data outside the
layers folder, either joining paths when it shouldn't, e.g.
E:\path\to\layersE:/data/landcover.img, or failing to make a valid DBF
name, e.g. ...\DBFStash\E:\data\landcover.img.  Changes make it work
regardless of / or \ delimiters, previously it failed one way or the
other whichever you used.

StreamCat.py

@@ -90,7 +90,7 @@
         mask_dir = ""
     layer = (
         row.LandscapeLayer
-        if os.sep in row.LandscapeLayer
+        if "/" in row.LandscapeLayer or "\\" in row.LandscapeLayer
         else (f"{LYR_DIR}/{row.LandscapeLayer}")
     )  # use abspath
     if isinstance(row.summaryfield, str):
@@ -191,4 +191,4 @@
             "Be sure to delete the associated files in your `OUTDIR` to rerun:"
             f"\n\t> {OUT_DIR}\n\n!!! `$OUT_DIR/DBF_stash/*` "
             f"output used in 'Continuous' and 'Categorical' metrics!!!"
-        )
+        )

StreamCat_functions.py

@@ -21,6 +21,7 @@
 import sys
 import time
 from collections import OrderedDict, defaultdict, deque
+from pathlib import Path
 from typing import Generator
 
 import numpy as np
@@ -965,16 +966,18 @@ def createCatStats(
         arcpy.env.snapRaster = inZoneData
         if by_RPU == 0:
             if LandscapeLayer.count(".tif") or LandscapeLayer.count(".img"):
+                landscape_layer = Path(LandscapeLayer).stem  # / vs. \ agnostic
                 outTable = "%s/DBF_stash/zonalstats_%s%s%s.dbf" % (
                     out_dir,
-                    LandscapeLayer.split("/")[-1].split(".")[0],
+                    landscape_layer,
                     appendMetric,
                     zone,
                 )
             else:
+                landscape_layer = Path(LandscapeLayer).name  # / vs. \ agnostic
                 outTable = "%s/DBF_stash/zonalstats_%s%s%s.dbf" % (
                     out_dir,
-                    LandscapeLayer.split("/")[-1],
+                    landscape_layer,
                     appendMetric,
                     zone,
                 )