Fix: Added missing dependencies. Also add better warnings for missing…

… dependencies.

gustaf/show.py

@@ -7,7 +7,13 @@
 import numpy as np
 
 from gustaf import utils
-from gustaf.utils.notebook_helper import K3DPlotterN
+
+try:
+    from gustaf.utils.notebook_helper import K3DPlotterN
+except ImportError as err:
+    from gustaf.helpers.raise_if import ModuleImportRaiser
+
+    K3DPlotterN = ModuleImportRaiser("IPython and ipywidgets", err)
 
 # @linux it raises error if vedo is imported inside the function.
 try:

gustaf/utils/notebook_helper.py

@@ -1,3 +1,5 @@
+import importlib
+
 import numpy as np
 import vedo
 from IPython.display import display
@@ -39,6 +41,11 @@ def get_shape(N, x, y):
 
 class K3DPlotterN(GridspecLayout):
     def __init__(self, N, size, background=0xFFFFFF):
+        if importlib.util.find_spec("k3d") is None:
+            raise ImportError(
+                "k3d is not installed. Please install it with `pip "
+                "install k3d`."
+            )
         self.N = N
         self.x, self.y = get_shape(N, *(2160, 1440))
         self.shape = (self.x, self.y)

pyproject.toml

@@ -41,7 +41,9 @@ all = [
     "meshio",
     "napf>=0.0.5",
     "funi>=0.0.1",
-    "requests"
+    "requests",
+    "ipywidgets",
+    "k3d",
 ]
 test = [
     "pytest",
@@ -57,6 +59,8 @@ dev = [
     "meshio",
     "requests",
     "pre-commit",
+    "ipywidgets",
+    "k3d",
 ]
 
 [tool.setuptools]