Fixes #584 (#614)

* Fixes #584

* Updates CHANGELOG

* Updates for comments

* Update with different exception throwing logic

CHANGELOG.md

@@ -46,6 +46,7 @@ release.
 ### Fixed
 - `update_from_jigsaw` failures due to stale code. Now uses a conntext on the engine to ensure closure
 - Fixes errors where reference measure index was being incorrectly tracked when placing measures would fail [#606](https://github.com/USGS-Astrogeology/autocnet/issues/606)
+-  Fixed #584 where importing autocnet fails on kalasiris imports by wrapping the import in a try accept.
 
 ## [0.6.0]
 

autocnet/spatial/isis.py

@@ -15,10 +15,14 @@ from collections import abc
 from numbers import Number
 
 import numpy as np
+
+try:
     import kalasiris as isis
-import pvl
+except Exception as exception:
+    from autocnet.utils.utils import FailedImport
+    isis = FailedImport(exception)
 
-import kalasiris as kal
+import pvl
 
 isis2np_types = {
         "UnsignedByte" : "uint8",
@@ -48,7 +52,7 @@ def get_isis_special_pixels(arr):
 
     """
     isis_dtype = np2isis_types[str(arr.dtype)]
-    sp_pixels = getattr(kal.specialpixels, isis_dtype)
+    sp_pixels = getattr(isis.specialpixels, isis_dtype)
 
     null = np.argwhere(arr==sp_pixels.Null)
     lrs = np.argwhere(arr==sp_pixels.Lrs)

autocnet/spatial/tests/test_isis.py

@@ -15,7 +15,12 @@ from pathlib import Path
 import numpy as np
 import numpy.testing as npt
 
+
+try:
     import kalasiris as isis
+except Exception as exception:
+    from autocnet.utils.utils import FailedImport
+    isis = FailedImport(exception)
 
 from autocnet.spatial import isis as si
 

autocnet/utils/utils.py

@@ -20,6 +20,13 @@ from shapely import geometry
 from shapely.geometry import MultiPoint
 from shapely.ops import cascaded_union, polygonize
 
+
+class FailedImport():
+    def __init__(self, exception):
+        self.exception = exception
+    def __getattr__(self, name: str):
+        raise self.exception
+
 def tile(array_size, tilesize=1000, overlap=500):
     stepsize = tilesize - overlap
     if stepsize < 0:

bin/acn_cd

@@ -25,7 +25,11 @@ import numpy as np
 
 from affine import Affine
 
+try:
     import kalasiris as isis
+except:
+    from autocnet.utils.utils import FailedImport
+    isis = FailedImport()
 
 import warnings
 warnings.simplefilter("ignore")