implementing pathlib instead of os

acpreprocessing/stitching_modules/acstitch/zarrutils.py

@@ -1,4 +1,4 @@
-import os
+import pathlib
 import zarr
 
 def get_zarr_group(zpath,grpname):
@@ -7,10 +7,14 @@ def get_zarr_group(zpath,grpname):
     zf = zarr.open(zpath)
     return zf[grpname]
 
-def get_group_from_src(srcpath):
+def get_group_from_src(srcpath,
+                       outpath='zarr://http://bigkahuna.corp.alleninstitute.org/ACdata', # Url for ACdata for NG hosted on BigKahuna
+                       inpath = 'J:'):
     # returns zarr group given a neuroglancer source path
     # used to get datasets from neuroglancer layer json
-    pathout = 'zarr://http://bigkahuna.corp.alleninstitute.org/ACdata' # Url for ACdata for NG hosted on BigKahuna
-    pathin = 'J:' # Local path to ACdata
-    s = os.path.split(srcpath.replace(pathout,pathin))
-    return get_zarr_group(zpath=s[0],grpname=s[1])
+    p = pathlib.Path(srcpath.replace(outpath,inpath))
+    if p.exists():
+        return get_zarr_group(p.parent,p.name)
+    else:
+        print(str(p) + " not found!")
+        return None